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### FITTER THEORY SEM II JAN17 QUESTIONS

FITTER THEORY SEM II JAN17 QUESTIONS

Which of the following centers is suitable while cutting taper by set over method?
a) Plain centre b) Revolving centre
c) Half centre d) Ball centre

To get least count of 5 in a Vernier bevel protractor, the 23 main scale are divided in to
a) 12 equal parts on a Vernier scale b) 24 equal parts on a Vernier scale
c) 22 equal parts on a Vernier scale d) 25 equal parts on a Vernier scale

Which one of the following statements indicates the principle followed in turning taper by
offsetting the tail stock?
a) The work axis is kept out of alignment with the lathe axis and the tool movement
are parallel to the lathe axis.
b) The work axis is kept in line with the lathe axis and the tool is made to move at an
angle to the lathe axis.
c) The work axis is kept out of alignment with the lathe axis and the tool is made to
move at angle to lathe axis.
d) The live and dead centers are moved in opposite directions to keep the work axis
out of alignment with lathe axis.

Which one of the following methods of catching the threads consume more time when
b) Reversing the machining
c) Predetermined travel of the carriage
d) Marking on work holding device & lead screw.

When power feed is engaged while turning taper using taper turning attachment, it is noticed
that for short distance parallel turning takes place due to certain defect. Which one of the
following is the cause of this defect?
a) The positioning of the T/T attachment is not correct
b) The too setting is not at centre height
c) Work piece is not rigidly held
d) Play between the sliding units

Medium solder contains..................
a) 37% lead & 63% tin b) 50% lead & 50% tin
c) 70% lead & 30% tin d) None of these

The depth of B A screw thread is..................
a) 0.64 p b) 0.7035 p c)0.6p d)0.61p

The value of each main scale division of Vernier bevel protractor is...............
a) 1° b)5' c) 1 °-55' d) 1/2

The tail stock barrel has an internal taper, which one of the following standard taper is
provided in the barrel bore..............
a) Metric taper b) Morse taper
c) Jarno taper d) Brown & Sharp taper

A British thread chasing dial has 16 teeth on the worm wheel and the lead screw has 4 threads
per inch. During one full turn of the dil, the carriage will move on the bed to a distance of.................
a) 1 inch b) 4 inches c) 8 inches d) 16 inches

a) Lead is half the pitch
c) Lead and pitch are equal
b) Lead is double the pitch
d) Pitch is half the Lead

The amount of off set of tail stock for taper turning is done by the offset screws provided. The
procedure to be followed is.........
a) Loosen both screws and push the base to the amount of off set.
b) Loosen both screws and push the body to the amount of off set.
c) Loosen the screws in the direction of movement and tighten the other screw
d) Loosen the screws in the opposite to the direction of movement and tighten the
other screw.

Which one of the following statements does NOT provide the required information for
turning tapers using compound slide swivel method?
a) Big diameter, small diameter and total length of the work piece
b) Big diameter, small diameter and total length of the tapered work piece
c) The taper ratio and total length of the work piece.
d) The included angle and length of taper of the work piece.

Which one of the following elements of an external BSW thread cannot be formed with
a) Root b) Helix angle c) Crest d) Thread angle.

While measuring with Vernier bevel protractor, which part is used normally as reference
surface?
a) Stock b) Blade c) Dial d) Disc

Buttress threads are most commonly used for.................
a) Transmission of motion
b) Resisting force exerted in one direction only
c) Positioning of mechanical parts
d) Special bolts & units in structural work

The least count of Vernier height gauge is........................
a) 0.01 mm b) 0.02 mm c) 0.05 mm d) 0.10 mm

Which one of the following abbreviations is used to specify an ACME thread .............
a)M16 b)Rd20Xl/8"       c)s48X8 d)Tr60X9

The reason for NOT providing the rake angle on a form tool used to produce taper on a work
piece is..................
a) To reduce grinding time of the tool
b) Taper angle is not affected by re sharpening
c) To reduce wastage of tool material
d) For the tool to have large wedge angle

One of the precision instruments used to check the dimensional accuracy of an external "V"
checked with this instrument ...........
a) Major diameter     b) Minor diameter    c) Pitch d) Pitch diameter

One of the methods of aligning lathe centers is trial cut method. The diameter of the tail stock
end is found to be bigger than the head stock end by 0.1 mm after the trail cut to correct the
alignment the tail stock body should be moved by..................
a) 0.10mm away from the operator b) 0,10mm towards the operator
c) 0.05mm away from the operator d) 0.05mm towards the operator

A simple change gear train is used to cut a certain pitch thread. Due to non- availability of 1
required gear from the set, down gear with 3 teem more than that of the calculated value
mounted. The thread that is cut will have a pitch........

a) More for certain length and then less for the remaining thread length.
b) More than that of required for the full threaded length.
c) Less than that of required for the full threaded length
d) Equal to that of required for the full threaded length

While marking with a Vernier height gauge, the workplace is generally:-
a) Supported by another work piece b) Held by hand
c) Supported by an angle plate d) Held without support

While laying out, the Vernier height gauge must be used on the:-
a)Veeblock b) Surface plate
c) Machine bed d) On any flat surface

Which one of the following formula is applied to find the tail stock off set, when turning
tapers by offset method?
D-d , v D-d . D-dv. ^d_D
a)— b>—        c>-^rXL d>—

Which one of the following instruments is used to measure accurately the angle of taper?
a) Bevel gauge b) Bevel protractor
c) Vernier bevel protractor d) Taper gauge

Which one of the following instruments is used to measure accurately the angle of taper?
a) Bevel gauge b) Bevel protractor
c) Vernier bevel protractor d) Taper gauge

Which one of the following statements is true in respect of taper turning using telescopic type
of taper turning attachment?
a) The tool post is pushed or pulled during axial movement of the saddle
b) The compound slide is pushed or pulled during the axial movement of the saddle
c) The cross slide is pushed or pulled during the axial movement of the saddle
d) The saddle itself is pushed or pulled during the axial movement of the saddle

In thread cutting with chasers on lathe the hand chasers are used for:...............
b) Cutting threads on soft metals directly
c) Rectifying threads cut on steel rods which are distorted.
d) Rectifying crest and root of threads formed by single point tool.

A centre gauge is used to..............
a) Check the pitch of the thread
b) Set the tool to exact centre height
c) Check the flank angle of a "V" threading tool
d) Determine the length of cutting edge of the "V" threading tool

Which one of the following methods of joining metals results in the fusion of the parent
metal?
a) Soldering b) Welding c) Brazing d) Riveting

A multi start square thread is to be cut on a lathe with single point tool. Which one of the
following angles of the tool is to be ground by taking into consideration, the thread helix
angle?
a) Side relief b) Front Clarence      c) Side rake d) Side clearance

The principle of universal bevel protractor is similar to that of: -
a) Depth micrometer b) Dial test indicator
c) Vernier bevel protractor d) Fixed gauge

By which one of the following methods, a multi start thread is cut on a lathe..................

a) By using a die head. b) By a chaser
c) By a single point tool d) BY a split die

A 200 mm long has one end dia is 100 is.....................
a) 0.01 mm b) 0.02 mm
and second dia is 80 mm. The taper
c) 0.04 mm d) 0.05 mm

During taper turning by offsetting tail stock method the part of tail stock offsetted is.............
a)Body b) Spindle c)Base d) Whole unit

On which part of the Vernier bevel protractor, are the main scale divisions graduated?
a) Blade b)Disc c)Dial d) Stock

The size of a Vernier height gauge is specified by:-
a) Weight of the height gauge b) Size of the scriber
c) Height of the beam d) Width of the beam

expressed in module?

The taper per foot of BS 10 self-holding taper is........
a) 0.5161 per foot     b) 0.5611 per foot     c) 0.6151 per foot     d) 0.611 per foot

Which one of the following angles is not ground on a form tool?
a) Front clearance angle b) Rake angle
c) Side clearance angle d) Relief angle

The graduations are marked at the base of the tail stock. To offset the body these graduations
are given in..........
a) Degrees b)mm c) Taper per foot      d) Radians

Which of the following combination of change of gears required when the pitch of a lead
screw is 6 mm and the pitch of the thread to be cut is 1.25mm?
a) Driving gears 40 & 120 and Driven gears 50 & 20
b) Driving gears 50 & 120 and Driven gears 40 & 20
c) Driving gears 50 & 20 and Driven gears 40 & 120
d) Driving gears 40 & 20 and Driven gears 120 & 50

### FITTER NIMI JULY15 QUESTIONS

FITTER NIMI JULY15 QUESTIONS

The clearance angle of a drill for drilling mild steel job is ...
A   3° to 5°
B   8° to 12°
C   12° to 20°
D   15° to 50°

The process of imbedding the abrasive grains on a lap is called ........
A  rubbing
B  charging
C  fixing
D  pasting.

Which pin adjusts itself in case of wide tolerance of holes for locating in assemblies?
A   Taper pin
B   Cotter pin
C   Spring pin
D   Dowel pin

Belt get slip in open belt drive, due to insufficient arc of contact of pulley... How do you reduce this type slip?
A  Put jockey pulley on slack side near smaller pulley.
B  Put jockey pu Hey on tension side near to smaller pulley.
C  Put jockey pulley on slack side near to bigger pulley.
D  Put jockey pulley on tension side near to bigger pulley.

While working on drilling machine first we select the cutting speed, to set the spindle speed (RPM)
Which one of the following to be considered to select the cutting speed?
A   Job material and tool material
B   Job material and dia of drill, type of machine
C   Tool material and type of coolant
D   Dia of drill and finish of job.

Why double cut file should not be used for filing on the meta! Tin?
A  The file will not cut the metal
B  The metal is hard
C  The file slide on the metal instead of cutting
D  The metal pieces will clog on the file.

Which anticorrosive metal is widely used for surface coating on iron sheets for galvanising?
A  Tin
B  Brass
C  Copper
D  Zinc

The movement of cutting tool causes certain lines or patterns over the surface of work piece is...
A  roughness
B  waviness
C  surface texture
D  lay

Travelling wall crane can shift the load in ...
A  one direction
B  two direction
C  three direction
D  four direction.

Which one of the following formula is applied to find the tail stock offset when turning tapers by offset method?
D-d
I
D-d
21
D-d
21
d-D
21

The pointer of Plunger type dial indicator points to 52 divisions on dial and its revolution counter shows 2 divisions. Least count of instrument is 0.01 mm. The value of reading is ........
A   5.2 mm
B   5.4 mm
C   2.52 mm
D   0.54 mm

A  screw jack.
B  general purpose bolt and nut.
C  railway couplings.
D  spind le of m icrometer

Tempering is done after.....
A  Annealing
B  Normalising
C  Hardening
D  Forging

Which device gives support to the job at fixed place. While turning slender job on lathe........
B  Revolving centre

### FITTER NIMI JAN15 QUESTIONS

FITTER NIMI JAN15 QUESTIONS

Leakage should be checked before using oxy-acetylene welding equipment.
What type of water can be used on the acetylene connection?
A   Saltwater
B   Soap water
C   Hard water
D   Fresh water

The process of finishing of round holes by means of bonded abrasive stone is called ........
A  Lapping
B  Reaming
C  Boring
D  Honing

The process of imbedding the abrasive grains on a lap is called ........
A  rubbing
B  charging
C  fixing
D  pasting.

What is the correct tap drill for tapping M16 tap?
A   14 mm
B   14.16 mm
C   15.03 mm
D   15.08 mm

Which one of the following tool angle control the chip formation while plain turning.
A   Side clearance angle
B   Front clearance angle
C   Approach angle
D   Top rake angle

In riveted joints the pitch of rivet is the minimum distance between the rivet should be three times of  rivet dia.
If the pitch of rivet is too close it will........
B   be difficult for riveting.
C   split the edges of joint.
D   tear the metal along the centre line of the rivets.

The jig which does not have a base but can be set over the job to be drilled is catled .......
A)  box jig
B)  sandwich jig
C)  channel jig
D)  trunnion jig

Due to continuous rubbing of the belt on the surface pulley. Belt gets dried up due to friction
and heat generated. This causes the belt to slip. Which of the following material applied on the
inner face of the belt for reducing belt slip?
A  Emery or corundum
B  Tallow or powdered resin
C  Nylon or Tuflon
D  Zinc or chalk powder

When more than one operation is to be performed in the same location the suitable jig bush will be ........
B  liner bush .
C  slip renewable bush

in a milling fixture the purpose of providing a setting block is to ......
A   support the work piece
B   position the cutter
C   set the fixture on machine table
D   locate the work piece.

### WORKSHOP CALCULATION&SCIENCE SEM I JULY17

WORKSHOP CALCULATION&SCIENCE SEM I JULY17

PAPER - II
(WORKSHOP CALCULATION&SCIENCE AND ENGINEERING DRAWING)
FOR THE TRADES WITH MINIMUM QUALIFICATION 8 th pass
SEMESTER-I

0.02 Kg =-------
a) 200 grams b) 20 grams  c) 2 grams d) None of these

One kWh is equal to_
a) 4.2 mega joules     b) 3.6 mega joules c) 0.42 kilo joules     d) 33,000 joules

The number 1/3 x 1/2 1/3 is equal to......
a)l    b) l/2   c)2    d) 1/4

Sum of 2123 + 2414 is equal to
a) 4735   b) 4468   c) 4537   d)4564

1 Kilometer is equal to.......
a) 0.622 miles b) 0.633 miles
c) 0.602 miles d) None of these

Multiply 6/13 by the reciprocal of 9/16 is equal to......
a) 96/234 b) 27/52 c) 32/39  d) 54/104

One gallon is equal to.........litres.
a) 4.1 litres b) 4.24 litres
c) 4.50 litres d) 4.54 litres

A watch keeps exact time, but it has only Hour hand. When the hour hand is 2/5 of the
distance between the 4 and 5, the correct time is ........
a) 4.10 b)4.20 c)4.22 d)4.24

Reciprocal of -5 is .......
a) - 1/5 b) 1/5   c)+5  d)l

If a man have to sell a watch for Rs. 720, he would lose 25%. What must he sell it for, to gain 25%?
a)Rs,l,200 b)Rs.960 c)Rs.l,000 d) Rs.900

Sum of 2.012 + 201.2 are ........
a) 203.32 b) 203.032
c) 201.32 d) 203.212

Choose the correct of the multiplication 0.1 x 0.001 is equal to .........
a) 0.1 b)0.01 c) 0.001 d) 0.0001

A mile if represented in nearest km is equivalent to ........
a) 1.1 km b) 1.25 km c) 1.4 km  d) 1.6 km

Sum of number 7/12 and -5/16 is equal to ........
a)-7/48 b)-11/30 c) 13/48  d)l/3

Sum of (7 + 3) x 4 are .......
a) 7x4 + 3x4 b) 7+(3x4)   c) 7+(3+4) d) (7+3)+4

Ramulu watched a movie for 2Va
hour, played kabadi for 1 ft hour, and washed the clothes for % hour. The total time spent is .......
a) 2 V4 hour b)33/4hours c) 4*4 hours d) 5 hours

### DRAWING JULY17 QUESTIONS

DRAWING JULY17 QUESTIONS

The dimension figure for diameter of a circle should be -
a) Preceded by the symbol "<J>" b) Suffixed by the symbol "<D"
c) Preceded by the symbol "D" d) Suffixed by the symbol "D"

Extension arm used with engineering compass is to facilitate -
a) To increase the gripping arm b) To draw a larger diameter circles
c) To adjust distance between the legs d) To increase the accuracy

To draw a smooth curve of any nature, the draughtsman will select the following
instrument -
a) Mini drafter b) French curve c) Eraser shield        d) Template

A line intersects a circle at two points and does not pass through the centre, the line
segment inside the circle is referred as -

Hidden lines are represented by_lines.
a) Thin lines b) Thick lines c) Dotted lines d) Any of these

In lettering while drawing lower case letters, the text body height is about_of the
capital letters.
a) Same height b) 3/4 the height         c) 2/3rd height d) 1/2 height

To "step-off a series of equal distances" on the drawing the following instrument is used,
a) Compass b) Set square c) Divider d) Scale

The two recommended system of placing the dimensions are -
a) Unidirectional & aligned system b) Upright <fe inclined systems
c) Linear & oblique systems d) Linear & inclined systems

Parallel lines can be drawn with the help of -
a) Mini drafter b) French curve        c) Template d) Eraser shield

Which of the following is preferred containing statement? "All dimensions are in mm
unless otherwise specified"?
a) Frames and borders b) Title block c) Items list   d) Revision table

In multi view projections, the XY line is also known as -
a) Horizontal line b) Horizontal trace    c) Reference line       d) All of these

During operation of drafter, the two arms of the drafter remains at -
a)45o b)90° c)180°d)270°

Visible lines and edges axe drawn as -
a) Thin lines b) Thick lines c) Dotted lines d) Any of these

To draw a perpendicular from a given point P on line XY name the point where the
needle of the compasses should be placed first-
v p b) Any convenient point along XY
c) X or Y d) A point near the mid point of PX and PY

Numbers of orientation marks generally contained by a drawing sheet -
b)Two c) Three d)Four
a) One

### DRAWING SEM I JULY 17 QUESTIONS

DRAWING SEM I JULY 17 QUESTIONS

The recommended symbol for indicating the angle of projection shows two views of the frustum of a -
a)Triangular pyramid b)Cone        c) Square pyramid     d) Any of these

When a circle passes through three given points, its centre lies at. the intersection of -

a) The perpendicular bisector of the longest line and the perpendicular line drawn from the end of the longest line.

b) The perpendicular bisector of the shortest line and the perpendicular line drawn from
the end of the shortest line.
c) The perpendicular bisectors of the lines that connect the points.
d) The tangents drawn through each point.

The size of the letters kept on drawing -
a)Constant b) Varied as per size of the drawmg
c Not known d) None of these

Projection of an object shown by three views is known as -
a) Perspective b) Isometric c) Oblique d) Orthographic

Select the correct Front view from the given orthographic views -

Which of the following is size of A3 drawing sheet?
a) 594 x 841 mm      b) 420 x 594 mm      c) 297 mm x 420 mm      d) 210 x 297 mm

a) HB b) H c) B
b)H
d)F

Which one of the following is not served by the divider?
a) Divide lines or curves into a number of equal parts
b) Transfer measurement from one part of the drawing to another
c) Make full size, reduced size or enlarged size
d) Step off a series of equal distances on the drawing

A typical layout of a drawing sheet Do Not contain -
a) Centering mark b) Orientation mark
c) Trimming mark d) Identification

Chord AB is parallel to Chord CD in a circle, which of the following statement is true -
a) Arc length AC = Arc length BD b) Arc length AB = Arc length CD
c) Length AB = length CD d) Arc length ABD = Arc length CDB

### WORKSHOP CALCULATION SEM I JULY17 QUESTIONS

WORKSHOP CALCULATION SEM I JULY17 QUESTIONS

(WORKSHOP CALCULATION
FOR THE TRADES WITH MINIMUM QUALIFICATION 8 PASS)
SEMESTER-I
17B

Ramulu watched a movie for 2 1/4 hour, played kabadi for 1 1/2 hour, and washed the
clothes for 3/4 hour. The total time spent is -
a) 2 1/2 hour b)3 3/4 hours c) 4 1/2 hours  d) 5 hours

The price of a car decrease by 25% over an 8-month period. To find the amount of the
decrease in a car originally priced at R238 000, multiply R238000 by.....................
a) 1/20      b)  l/5      c)  1/4     d)     1/10

Which group of fractions is in descending order?

a) 2/3 3/4 5/8 8/9
b)5/8 2/3 3/4 5/6
c)2/3 3/4 5/6 5/8
d)5/6 3/4 2/3 7/8

What number should be subtracted from -3/5 to get
a) -7/5       b) 13/5     c) 7/5    d) -13/5

The number of boys and girls in a class are in the ratio of 7:5. The total number of boys
and girls are 96 then the number of girl are -
a)56 b)8 c)40 d) 7

The quantity of matter of a substance contains is termed as -
a) Weight b) Density c) Relative density    d) Mass

The sum of largest and smallest number 2/10, 9/20,12/23, 27/50, 49/100 is -
d) 0.79

a) 0.34 b)0.74 c)0.78 d)0.79

If the weight of certain quantity of mercury is 136 grams, and its density is 1.36 gm/cu
cm, then its volume is -
a)10cucm b)136cucm c)1.36cucm d) 1 cu cm

Simplify (- 4) / 5 x 3/7 x 15/16 x (-14)/9 is equal to -
a) 1/2 b) 14/35 c) 45/80d) -1/2

Brass is an alloy of -

a) Copper & tin
b) Lead & tin c) Copper & zinc      d) Copper & silver

### MACHINIST THEORY SEM I JAN13 QUESTIONS

MACHINIST THEORY SEM I JAN13 QUESTIONS

MACHINIST
(THEORY & EMPLOYABILIT
SEMSTE1U

Which one is not the cause of accident?
A   Unaware of danger    B   Negligence     C   Regard for safety    D   Improper use of tools

For cutting conduit pipe, the most suitable pitch of the hacksaw blade is............
A 1.8mm     B 1.4 mm      C   1 mm   D   0.8 mm

Which one of the following will be suitable tap drill size for M6 tap for 100% thread?
A  4.8 mm     B  5.0 mm     C  5.2 mm     D  5.4 mm

Name the tool used in forging work to enlarge a previously punched hole
A  Punch    B  Drift   C  Fork   D  Anvil

Which processes is used to reduce the  brittleness and to increase the toughness of hardened tools?
A Hardening B Tempering C Annealing D Normalising

The smallest division graduated on barrel of outside micrometer is ...
A  0.01 mm     B   0.05 mm   C  0.2 mm    D  0.5 mm

What is the part used to change the range depth micrometer?
A  Graduated sleeve      B   Extension rod     C Stock    D  Thimble

The inside sharp corner of a job should by using.....
A round nose tool      B key way tool     C square nose tool     D cornering tool

The size of a slotter is specified by its maximum
A longitudinal travel of table       B height between table and ram
C crosswise travel of table           D length of stroke of ram

To slot a convex surface, the cutting tool required is ........................
A square nose tool    B round nose tool     C keyway tool     D cornering tool

The solid forged slotting tool is made out
A  tungsten carbide     B   high speed steel    C   mild steel    D   hard cast iron

The chisel will dig into the material when
A the rake angle is more                   B   the clearance angle is too low
C   the angle of inclination is more   D  the angle of inclination is too low

In heat treatment process normalising................
A improve the mahinability   B refine grain structure
C increase the hardness         D increase the brittleness

In the outside micrometer, the graduation and datum line are marked on ...
A frame     B thimble     C spindle     D barrel

Which one of the following is the characteristic of a standard shaping machine relating to cutting process?
A   The tool cuts during forward motion.    B   The tool cuts on both directions.
C  The tool cuts in reverse directions.         D   The tool cut when the ram is not moving.

The influence on the same number of strokes or range of strokes on machine cutting speed is ...
A   longer stroke causes less cutting speed
B   no influence of the range of stroke on the
cutting speed
C   longer stroke causes higher cutting speed
D   smaller stroke causes higher cutting speed.

The range of oscillation of the rocker arm shaper is controlled by this component...
A   Bull gear    B   Compensating link C   Slotted link D   Sliding block

The cutting speed of the tool in mechanical shaper is...............................
A   maximum at the beginning of the cutting stroke
B   maximum at the end of the cutting stroke
C  maximum at the middle of the cutting stroke
D   minimum at the through out the cutting stroke

The convex surface can be slotted by using ..............
A longitudinal feed     B rotary feed     C cross feed    D vertical feed

What should be the position of the job for slotting circular surface on slotting machine ?
A  At one side of the table.            B   Introduction centre and edge.
C   At the centre of the table          D   Anywhere on the table.

An angular surface has to be machined in shaping machine. For machining this the tool is adjusted by...
A   swivelling and fixing tool at an angle.  B   swivelling the clapper box.
C swivelling the tool head of the machine. D   tilting tabie itself..

The error caused due to viewing from side direction while measuring dimenion is ...
A   static deformation error     B   micro-geometrical error    C   parallax error   D   contact error

The crank pin of a shaping machine is set closer to the centre of the bull gear How does it affect the ram movement?
A  The ram does not move.
B   It does not affect the ram movement.
C  The ram movement will be longer.
D   The ram movement will be shorter

In a slotting operation the length of the stroke is 50mm, number of double storkes per minute
is 50 the ratio of return of cutting stroke is 2:3 Calculate the cutting speed in m/min?
A 9.16    B 8.16    C 4.16   D 3.16

The bench vice are specified by ...
A   the length of spindle      B  the width of jaw
C  the length of fixed jaw    D  the moving distance of movable jaw

A nut, which can be tighten/loosen by thumb pressure and used in hack saw frame is called a ..................
A ring nut    B thumbnut   C cap nut  D wing nut

Name the part which is connecting slotted link to the ram
A   Die block B   Bull gear    C  Connecting link   D  Crank pin

The process of heating the high carbon steel above upper critical temperature followed by a slow cooling is termed as ....
A normalizing   B annealing   C hardening   D tempering

Which one of the following operations done on-lotting machine?
A   External keyway on long shaft
B   Internal grooves
C  Woodruff keyway on a shaft
D   Keyway for feather keys.

### FITTER THEORY SEM IV JAN16 QUESTIONS

FITTER THEORY SEM IV JAN16 QUESTIONS

jan 2016 sem 4 fitter theory

The accurate spacing of teeth in a gear blank requires the use of.........
A  dividing head   B  an index plate   C  a differential mechanism   D  universal table

Helical gears can be cut on which type of milling machine?
A Plain   B Horizontal   C  Universal    D  Drum type

The carburizing is done on..................
A   high carbon steel      B   medium carbon steel
C   low carbon steels      D   high speed steel

Which clutch can be engaged progressively when one or both the elements are rotating?
A  Single plate clutch  B  Cone clutch  C  Centrifugal clutch   D  Dog clutch

The standard pipe fittings are provided with
A) BA   B) BSW   C) BSP   D) Metric

The included angle of a pipe thread is
A 60°    B 47°    C 55°   D 45°

The damaged external threads are rectified by......
A die nut    B half die     C circular die   D adjustable screw plate die

Where a large speed reduction is desired, which type of gear is used?
A   Worm and worm wheel     B   Helical bone gear
C   Hypoid gear       D   Herring bone gear

Which type of gear converts rotary motion to linear motion?
A   Rack and pinion    B  Worm and worm wheel
C   Hypoid gear          D   Internal gear

In the pipe assembly, the hemp packing is used to................
A   fill the gap between threads   B   avoid leakage
C   get tight fitting                      D   easy engagement

Which of the following can hold the work, locate the work and guide the tool at the desired position?
A   Drill bush   B   Drill fixture  C   Drill jig  D  V - block

The application of pressure pads in fixtures is to..........
A  increase the shocks    B   increase the vibration
C   absorb shocks           D   increase the weight

Gears having their teeth element parallel to the rotating shafts are known as............
A  worm gear   B  spur gear J     C   helical gear   D   bevel gear

The fuels like wood, paper, cloth, solid materials etc., come under which "class of fire?
A)  Class A fire   B) Class D fire   C) Class B fire    D) Class C fire

Which   metal   is   used   for  coating in galvanizing?
A Lead     B Brass     C Zmcy    D Aluminium

Water flows from tap even when firmly closed, what is the reason?
A  Defective washer       B  Spindle bent
C  Retainer nut loose     D  Spindle thread worn out

Aluminium is widely used in aircraft industry because it is..................
A corrosion resistant        B soft and ductile s
C light in weight              D low tensile strength

Which type of gas flame is most suitable for brazing?
A  Oxy-LPgas flame               B   Oxy-coal gas flame
C   Oxy-acetylene gas flame    D   Oxy-hydrogen gas flame

Bronze is an alloy of...................
A  copper and tin          B  copper and zinc
C  copper, zinc and tin  D  zinc and tin

The radial distance between the pitch circle and the root circle is called...........
C  working depth of the teeth       D  whole depth of the teeth

Which one of the following is liquid lubricant?
A  Grease   B  Molybdenum disulphide  C  Synthetic oil  D Wax

Drilling jigs are used for..........
A  drilling operation only
B  clamping the jobs while drilling
C  drilling, reaming, tapping and other allied operations
D  sharpening drill to correct angle

The fire triangle in fire hazards is identified as..............
A fuel, oxygen and heat          B fuel, oxygen and vapour
C fuel, burning and solid        D fuel, oil and waste

A master gauge is...........
A  used by masters
B   a standard gauge for checking accuracy of gauges used on shop floors
C   used by all mechanics
D  a gauge used by experienced technician

In a V belt the angle between the side is....
A  10°   B  20°   C  30°    D  30°

Name the fixed type foundation bolt that is usually forged and filled up with lead and cement?
A Eye bolt  B Rag bolt  C Ordinary bolt   D  Bent type bolt

Which is used to provide a decorative and corrosion resistant coating on aluminium and its alloy?
A Galvanizing   B Anodizing   C Tinning   D Cladding

Which type of crow bar is easier to handle, and the point will fit into a narrow gap?
A  Short crow bar                B   Long crow bar
C   Single ended crow bar    D   Double ended crow bar

What is the function of Dog clutch?
A   It can be engaged progressively when one or both the elements are rotating
B   It can only be engaged when two elements of the clutch are stationary
C  When the speed is reduced the clutch opens by itself
D   Contact force is produced by springs

The use of travelling wall crane is..............
A   it allows the load to move horizontally to or from the box
B  it allows the load to move in three directions
C  an endless chains
D  two separate chains

The sensitiveness of the spirit level depends upon the............
A  size of the bubble
B   length of the glass tube
C  type of liquid filled in the glass tube
D  curvature of the glass tube S

In which clutch, the pressure plate is used?
A  Multiple plate clutch   B  Dog clutch   C  Over riding clutch   D  Centrifugal clutch

Generally solder Is an alloy of
A  copper and tin   B   lead and tin   C   zinc and tin  D   antimonv and tin

Aluminium is extracted from the ore
A  pyrite  B  bauxite  C  aluminium oxide  D  magnetite

Best conductor of heat and electricity is.............
A nickel   B chromium    C aluminium   D  copper

Which of the following is the non-metallic anti  corrosion treatment?

Which of the following fire extinguishing agent is suitable for a live electrical fire?
A  Water ,    B Carbon dioxide   C Carbon tetrachloride   D Foam

In braze welding, the filler rod melting point is...........
A  above 450°C    B   above 550°C   C  above 600°C   D  above 650°C

Which metal can be joined by soldering and brazing easily than aluminium?
A Silver    B Copper   C Chromium   D Zinc

Which pipe wrench is used for holding large diameter of a pipe?
A  Chain wrench   B  Allen wrench   C   Strap wrench    D  Pipe wrench

The belt slips, due to...........
A  less tension    B  misalignment   C  pulsating load    D  high starting torque

Taper keys are rectangular cross section. They have a taper of..........
A   1:100 on the thickness    B   1:90 on the thickness
C  1:80 on the thickness       D   1:70 on the thickness

The standard size of V bait from section "D" nominal top width is.........
A   22 mm   B   32 mm   C   38 mm   D   17 mm

The error in squareness can be accurately determined by using a...................
A  try square and slip gauge             B  try square and feeler gauge
C  cylinder square and slip gauge     D  beveled edge try square

The spirit level is used for checking the level of machine when..........
A   lifting the machine .    B   erecting the machine
C   shifting the machine    D   grouting the machine

What is the function of a soldering iron in the soldering process?
A  Melt the metal   B   Melt the solder
C Cool the solder   D   Cool the metal

### FITTER THEORY SEM II JAN16 QUESTIONS

FITTER THEORY SEM II JAN16 QUESTIONS

PAPER-I
FITTER
(THEORY)
SEMESTER - II

The necessity of tack welding in a joint is
to...........
A join two pieces of plates
B join two pieces of pipes
C control distortion during welding
D eliminate spatters

During arc welding the correct angle of the
electrode with the welding line Is..........
A 35°
B 40° to 50°
C 70° to 80°
D 90°

The hose pipe for the oxygen line is
A black
B maroon
C red
D brown

To prevent the danger of harmful rays from
the electric arc use...............
A a leather apron
B a leather gloves
C a welding shield
D a goggle with plain glass

Which one of the following is the cause for
porosity in arc welding?
yA High current setting
B Low welding speed
C Use of wet electrode
D Long arc length

Which type of gas flame is the most suitable
for brazing?
Oxy-LP gas flame
Oxy - acetylene gas flame
Oxy - coal gas flame
Oxy- hydrogen gas flame

Which bonding material is suitable for
grinding fine edged tools?
A Silicate bond
B Shellac bond
C Vitrified bond
D Rubber bond

A  stainless steel
B   mild steel
C   low carbon steel

d) high carbon steel

The straight shank drill is held in the main
spindle of drilling machine by..............
A  floating holder
B collet
C chuck
D sleeve

The distance a drill advanced into the work
for each revolution is called the............
speed of a drill
depth of a drill
feed of a drill
cutting speed of a drill

What coolant is used for drilling the
aluminium job?
Dry air
Kerosene
Soluble oil
Mineral oil

After threading a hole by a tap, it was found
that the crest of thread was not formed
completely, this defect is due to...........
A insufficient coolant supply
B broken tip of cutting edge of the tap
C hole size slightly less than the tap drill size
D  hole size slightly more than the tap drill size

The part of the reamer which allows the
chips to pass and admit the coolant to the
cutting edge is called..........
tang
land
neck
flute

The property of metal by virtue of which they
can be rolled into their sheet without
breaking is called....................
A ductility
B malleability
C toughness
D tenacity

Feeler gauges are used to check
the..................
gap between the mating parts
precision length measurement

The most commonly used size of the vernier
height gauge is stated by the height of the
beam is.................
A  275 mm
B   300 mm
C   325 mm
D  350 mm

Three square scraper is used for
scarping.....
A  large diameter holes
B   bearing surfaces
C  small diameter holes
,D   large flat surfaces

What is the drill point angle for general
purpose?
118°
B 112°
C 110°
D 108°

The difference between the maximum limit of
size and the minimum limit of size is
called.......
A upper deviation
B  lower deviation
C tolerance
D  actual size

Wrought iron is produced in
A  blast furnace
B  electric arc furnace
C   cupola furnace
D   puddling furnace

Brass is an alloy of
A  copper and tin
C  copper and zinc

While drilling the drill gets over heated. This
is due to..............
A excessive cutting pressure
B  more lip clearance angle
C  less cutting angle
D   material being drilled is ductile

A plug gauge is used for measuring
taper bores
cylindrical bores
spherical holes

Vernier height gauge are used in conjunction
with the.................
angle plate
surface plate
face plate
base plate

A 30' B 45" C 55° D 60"

Name the type of machine tap while tapping,
the chips are forced out ahead of the tap.
A   Fluteless spiral pointed tap
C   Gun tap
,D   Helical fluted tap

Plug tap is used to

Double ended adjustable tap wrenches are
used for.............
hard material
large diameter
fine tapping

The hole can be checked by
plug gauge
B   feeler gauge
C   snap gauge
D   slip gauge

Which type of thread is used in precision
instrument?

During drilling, the feed rate is expressed
in............
A RPM
B mm/min
C mm/rev
/d degree

Organic bonded wheels can withstand
A  rough usage
B tool room usage
C  smooth usage
D  high capacity

in which gauge GO and NOGO comes in
the same end?
A  Double ended plug gauge
B Progressive
Snap gauge
D  Slip gauge

Which is the purest form of iron?
Wrought iron
Cast iron
Pig iron
Steel

The product obtained from smelting in the
blastfurnace is..............
A cast iron
B   pig iron
C  wrought iron
D steel

The carbon content in wrought iron ranges
from................
A 0.02% to 0.03%
B  0.02% to 0.1%
C   3% to 4%
D  0.01% to 0.05%

Metals ability to with stand scratching,
abrasion and penetration property is
called.......
A malleability
B toughness
C hardness
D ductility

Which one is a good conductor of heat and
electricity?
copper
steel
aluminium

Name the bond which is used for heavy duty,
large diameter wheels where a fine finish is
required.
A  silicate bond
B  rubber bond
C   vitrified bond
D   shellac bond

### MACHINIST THEORY SEM IV JULY15 QUESTIONS

MACHINIST THEORY SEM IV JULY15 QUESTIONS

JUL 2015 SEM IV MACHINIST THEORY

The line generated by the progressive rotation of a point around a cylinder is a........
A helix    B spiral    C involute    D cycloid

A curve which spread out from a central point progressively farther away as it revolves around the point is a........
A helix    B spiral    C involute    D cycloid

Calculate the helix angle, having lead of is 450 mm, and work piece diameter is 40.00 mm.
A 13°45'    B 15°36'    C 14°50'   D 16*45'

Machine or hand reamers, have uneven spacing of teeth. This feature helps to...
A provide more culling action
B provide easy flow of chips
C reduce chattering
D increase the surface finish

What does CNC signify?
A  Certified Numerical Calculations
B   Composite Numerical Contour
C   Computer Numerical Control
D   Combined Numerical Calculations

The numerical system that describes the location of an object by numerically expressing (he distance from a fixed point along 2 axes is called........
A   Vector co-ordinate system
B   Cartesian co-ordinate system
C   Polar co-ordinate system
D  CNC co-ordinate system

A sophisticated machine that can perform multiple machining operations at the same location with a variety of tool is called a.....
A  milling machine                        B  water cutting machine
C  plasma cutting machine             D  machining center

The fixed central point in the cartesian co-ordinate system is called.....
A metric system   B centre    C origin     D linear axis

What does the 'G' in G-codes stands for in CNC?
A   Graphic B  General C Geometric  D Global

A return signal that confirms the position of the tool or work piece is called.......
A  RPM           B  feedback      C servo control        D control system

On a CNC lathe the axes of cutting are
A X and Y axis       B  X and Z axis       C Y and Z axis       D  Z and B axis

The term surface finish refers to......
A   shining of a machine surface
B   type of coating given on a surface
C   heat treatment given on a surface
D   roughness or smoothness of a surface

For genera! application^ roughness value
value in microns is......
A 0.025     B 0.1     C 0.05    D 0.4

The Electrical Discharge Machining (EDM)
process is.......
A  burr free
8  not for hard material
C  direct contact machine
D  capable of producing sharp corners

In electron beam machining, work piece is
held in.....
A vacuum chamber        B electrolyte    C dielectric medium D  hydraulic fluid

A cam whose rise 23.5mm in 83° is to be cut
on vertical milling machine. Calculate the
inclination of the spindle.
A   60° 30'            B   76° 3'      C   65° 45'     D   80° 15'

Calculate the total feed mm/min Data given
feed per tooth=0.05mm, number of teeth in
cutten=10, spindle speed=110rpm..
A 45 mm/minutes       c  55 mm/ minutes
B   50 mm/ minutes       d   60 mm/ minutes

in a vertical milling machine, the vertical
head can be swivelled up to............
A  45° C 60°
B   55° D 65°

Which one of the following cutters are held
A  Plain milling cutter
B  Double angle milling cutter
C  Single angle mining cutter
D  End mill

Shell end mills are used to produce..
A  flat surface parallel to the axis
B  fiat surface perpendicular to the axis
C   angular surface
D   formed surface

Which one of the following cutters is
mounted with axis parallel to the surface of
the work piece?
A Plain milling cutter
B T-s!ot cutter
C Shell end mill cutter
D End mill cutter

The permissible cutting speed of an inserted
tooth cutter in relation to that of an H.S.S-
cutter is.........
twice as much
five to ten times
smaller
same

Calculate the rpm of the spindle, to the given
data, cutter diaTieter=50mm, cutting'
speed=20m/minu;e
A  130 rpm
B  127 rpm
C  124 rpm
D  121 rpm

Gear tooth vernier caliper are used to
measure the......
A   Circular pitch
B  Circular tooth thickness
C  Chordal tooth thickness
D   Chordal dedendum

Which one of the following gears are used to
transmit motion between parallel shafts?
A   Helical gear
B   Worm gear
C   Bevel gear
D   Helical bevel gear

Outside diameter of a helical gear can be
calculate using this formula.......
A PD+2M
B PD+2
C PD+2nM
D PD+2A

Find the index movement for 19 divisions by
simple indexing (use plate number 1)
A  2 rotation one hole on 19 hole circle plate
B   3 rotation 3 hole on 19 hole circle plate
C   3 complete rotation
D  4 complete rotation

On which gear, the teethes are cut on
conical surface
A   spur gear
B   helical gear
C   herringbone gear
D   bevel gear

Name the part having teeth cut on a fiat
surface.
A gear
B spline
C rack
D   locking lever

Which one of the following gears are used to
connect two non-parallel, non-intersecting
shafts which are right angle to each other?
A   Spur gear
B   Bevel gear
C   Helical gear
D   Worm gear

Machine reamers are provided with
A   parallel shank
B  morse taper shank
C   brown and sharpe shank
D  metric taper shank

Which type milling cutters have teeth on the
end as well as on the pheriphery?
A   Plain milling cutter
B   Angle milling cutter
C   End milling cutter
D   Form milling cutter

Which one of the following cutter is used to
cut profile on a vertical milling machine?
A   Plain milling cutter
B   Angle milling cutter
C   End milling cutter
D   Form milling cutter

Which one of the following cutters are held
on a collect check?
A   Plain milling cutter
B   Angle milling cutter
C   End milling cutter
D   Face milling cutter

Which one of the following cutter, the cutting
teeths are cut on the face and on one side
only?
Plain side and face mill cutters
Half side milling cutter
Staggered teeth side cutter
Interlocking side milling cutter

As per IS, an equal milling cutters are
specified as 56 x 60°N IS6326. The number
56 represents........
diameter of the cutter
bore diameter of the cutter
thickness of the cutter
counter bore diameter of the cutter

### TURNER THEORY SEM II JULY17 QUESTIONS

TURNER THEORY SEM II JULY17 QUESTIONS

The slowest speed in lathe is adopted for following operation -
a. Normal turning    b Thread cutting
c. Taper turning d Knurling

The composion of soft solder is -

The welding process used in joining mild steel shanks to high speed drill is -
a. Spot welding    b Seam welding
c. Flash butt welding     d Upset butt welding

for arc welding -
a. Direct current is used
b. Alternating current with high frequency is used
c. Alternating current with low frequency is used
d. None of these

Which of the following welding process uses non-consumable electrodes?
a. Manual arc welding b- Submerged arc welding
c.TIG welding d.Mig welding

The oxy-acetylene gas used in gas welding produce a flame temperature of
a. 1800°C b. 2100.°C
c.2400°C d.3200°C

The purpose of using borax in brazing is -
a. Dissolve oxides when heating the work
b. Prevent the spelter from melting too quickly
c. Increase fluidity "of braze material
d. Accelerate the formation of oxides on the work

When brazing is carried out --
a. A joint is made between two parts by molten spelter
b. The edges of the joint melt and run together
c. Spelter forms an alloy with flux
d. Flux acts as a connecting material

soldering process is supplied by...........
a Soldering iron
b Electric resistance welding
c  Induction furnace
d. None of these

The brazing process is carried in the temperature range of-
a. 150°Cto250cC       b. 250°C to 450°C
c. 500°C to 700°C     d. 7Q0X to 900UC

In soldering the melting point of filler metal is -
a. Below 420°C b. Above 420«c
c. Below 520°C d. Above 520^C

The rate of feed depends upon -
a. Finish required b. Material of drill
c. Material to be drilled ± All of these

For a 5° taper over 5 mm length is to be made on a 100 mm diameter which job. Method
should be used ?
a. Taper turning attachment b. Tailstock offset method
c. Compound rest method d. Form tool method

The smallest diameter of an external or internal screw thread is known as -
a. Minor diameter b. Major diameter
c. Pitch diameter d. None of these

The included angle for Acme thread is —
a- 29o b. 47.5*
c-55° d. 60°

Which thread have low friction resistance chracteristic of the square thread and have the same

The included angle for British standard whitworth thread is -
a- 29° b. 47.5"
c- 55° d. 60"

The bottom surface created by the two adjacent flanks of the thread is called -
c. Crest d. Root

The distance from a point on the thread to the corresponding point of the next thread is called-
c.Turn d. Crest

Combination set can be used —
a. Check angular surface b. Scribe lines
c. Draw circle and arcs d. Draw circle and arcs

The crest diameter of screw thread is same as —
a. Major diameter b. Minor diameter
c. Core diameter d. Pitch diameter

For application involving high stresses in one direction only the following type of thread would
be best suited —

If threads on a bolt are left hand, threads on nut will be -
a. Right hand with same pitch .
b. Left hand with same pitch
c. Right hand with fine pitch d. Left hand with fine pitch

A bench vice has which type of threads?
a. Metric
b. Square
c. Acme
d. British associate

Silver-based solder is used for — .
a. Flaring
b. Brazing
c. Soft soldering
d. Fusion welding

The distance which a screw thread advance axiaiiy in one rotation of the nut is called -
c. Turn d. Crest

a. Single start b. Double start
c. Multi start d. All of these

Screw thread may be cut on a 10 mm dia. Steel rod by using -
a. A circular split die b.
A set of Taps
c. Adrill and a reamer d. As knurling tool

The lathe centres are provided with standard taper known as -
a. Morse taper b. Seller's taper
c. Chapman taperq d. Brown and sharpe taper

Calculate diameter of best wire for a withworth thread or M24 X 7 mm size -
a. 4.04 mm b. 7.8 mm
c.-3.94mm d. 8.08 mm

Calculate lead angle of a thread which has mean diameter of 45 mm and lead of 10 mm
a: 8.5 0 b. 4.04 c
c. 3.02° d. 4.02°

External screw threads can be produced fastest by -
a. Milling b. Chasing
c. Casting d. Rolling

Internal and external tapers on a turret lathe can be turned by -
a. Face turning attachment b. Taper turning attachment
c. Moarse taper attachment d. Sliding attachment

Brown and sharp taper is generally used in —
a. Lathe machine b. Milling machine
c. Shaper machine. d. Broching machine

Half nut is connected with—
a. Lockong device
b. JIG and Fixtures
d. Quick engaging and disengaging device

In which type of welding a-pool molten metal is used?
a. Submerged arc b. MIG
c. TIG d. Thermit welding

Which of the following screw thread is adopted for power transmission in either direction?

& Fixtures are used for —
a. Mass production f      b. Identical parts production
c. Both (a) & (b) d. None of these

The included angle of taper in collet is usually —
a. 1-2° b. 5-10°
c. 30° d. 45°

A slight taper on the full length of a long shaft mounted between centres on a universal
cylindrical grinder can be ground by -
a. Off setting the tail stock b. Swiveling the table on its base
c. Swiveling the wheel head d. Taper turning attachment

The flux commonly used in brazing is -
a. Zinc chloride b. Ammonium chloride
c. Rosin plus alchol d. Borax

For turning small taper-on long work piece 5 the suitable method is -
a. By a form tool
b. By setting over the tail stock
c. By a taper turning attachment
d. By a swiveling the compound rest

For turning internal tapers, the suitable method is -
a. By a form tool
b. By setting over the tail stock
c. By a taper turning attachment
d. By a swiveling the compound rest

Which one of t he following is used for taper turning method on lathe?
a. Tail stock set over method b. By swivelling the compound rest
c. Using a broad nose tool     . d. All of these

The purpose of chasing dial on lathe is to achieve -
a. Picking up the thread accurately at beginning of each cut
b. Taper turning

Short and sharp angle tapers are machined using —
a. A taper attachment b. The compound rest
c. Morse taper attachment d. The tailstock set over method

A desired speed of__can be obtained by selecting the suitable change gears having
proper number of teeth.
a. Lead screw     [ b. Countershaft
c. Spindle d. Feed gear box

Assume a machining process of taper turning. In this process, a large diameter of taper is 'D'
and it is uniformly decreased to the' small diameter of the taper'd' at the horizontal length of
Tapered part of workpiece is 'L'. What is the correct formula for half of tapper angle (2a / 2)?
a. a = sin"1 ((D-d)/ 2L) b. a = cos"1 ((D-d)/ 2L)
a a = tan"1 ((D-d)/ 2L) d. a - cot"1 ((D - d) / 2L)

What is swing over carriage?
a. The maximum diameter of workpiece that can be rotated over the bed ways
b. The minimum diameter of workpiece that can be rotated over the bed ways
c. The maximum diameter of workpiece that can be rotated over lathe saddle
d. The minimum diameter of workpiece that can be rotated over lathe saddle

An alloy is a -
a. Fuse metal ^    b. Mixture of metals in any proportion
c. Mixture of metals in fixed proportion . d. Mixture of two non-metals

### TURNER THEORY SEM I JULY15 QUESTIONS

TURNER THEORY SEM I JULY15 QUESTIONS
JUL2015 TURNER SEM I THEORY

The shape on an information sign is..
A circular   B triangular   C square     D oval

Among the below colour which colour is used for prohibition sign?
A White symbol on blue background
B Yellow back-ground with black border and symbol
C White symbols on green back ground
D Red bolder and cross bar. black symbol on white back arounds

The best method to avoid accident is ............
A By wearing safety equipment
B By absorbho safety precautions reiat to a job machine and working place
C Doing things in one s own way
D Doing things which a highty skilied worker practice

Which one of the following fire extinguish; Is suitable for a live electrical fire?
A Haion
B Water
C Foam
D Liquified chemical

The straight shank drill is held in the main spindle of drilling machine by.......
A Floating holder
B Collet
C Chuck
D Sleeve

Bar type tap wrench is........
A not possible to holding large diameter taps
B more suitable for large diameter taps
C not suitable to adjust the jaws
D suitable for threading holes in restricted places

Centre punch angle of point is ....
A 30°   B 45°    C 60°  D 90°

Which one is to be used to start the tapping?
A Taper tap    B Plug tap   C Second tap  D Machine tap

A new hacksaw blade after a few strokes  becomes loose .because of.........................
B wing nut thread being worn out
C wrong pitch of the blade
D proper selection of the set of jaws

The hacksaw frame in which more than one standard size of blade can be fitted is called...
A fixed hacksaw frame                   B tubular hacksaw frame
C adjustable hacksaw frame           D deep cutting hacksaw frame

Which one of following mechanical properties enables a metal to be made into thin sheets?
A Toughness      B Hardness     C Ductility    D Malleability

At the end of the cutting with a hacksaw the cutting pressure should be ....
A Less     B High   C Normal     D Very high

Which is a reason for manufacturing grey cast iron by lathe bed?
C   difficult to machine ability               D   to brake sudden shock

Name the mechanism for moving and controlling the carriage parts.
A Feed mechanism   B Apron   C Carriage   D Top slide

What should be used to move the carriage manually?
A  Cross slide    B  Carriage hand wheel     C  Feed lever    D  Half nut

To prevent the chuck from damaging the lathe guide ways while mounting....
A  a lift the chuck with a hand crane
B  ask the instructor or foreman for help
C  place a wooden block or board on the guide ways
D  support with a screw jack .

Which chuck is provided for T-slots?
A  3 jaw chuck            B  4 jaw chuck
C  Magnetic chuck      D  2 jaw concentric chuck

A  carbon steel     B  lead     C  mild steel     D  brass

A  to hold jobs            B  for face plate work
C  to drive the job       D  to support the job

Cutting tool held with 3 bolts, Name the tool post.
A Open side tool post     B Four way tool post
C Universal tool post     D British tool post

The half nut lever is used for.....
A engaging the longitudinal feed on the carriage
B taking up the slack in the cross slide nut
C changing from longitudinal to cross- feed

The feed change lever.......
A changes the directions of the lead screw
B diverts the feed to either the cross slide or the longitudinal slide
C change the feed to a high or low range
D connects or disconnects the carriage hand wheel

Centre drill is done at the......
A  high spindle speed with a high feed
B  low spindle speed with a high feed
C  high spindle speed with a low feed
D  low spindle speed with a low feed

The centre drill breaks as a result of......
A  too heavy feed and too low speed
B  too light feed and too high speed
C  dropping it on the floor
D  allowing chips to form a tangle around them

The cutting tool is manufactured by....
A  low carbon steel               B  medium carbon steel
C  high carbon steel             D wrought iron

Tool holders are used to ....
A  extend the life of the tool    B  protect the tool
C  clamp the tool securely       D  deflect the cutting pressure

Depth of cut is provided by using
A  top slide              B  cross slide
C  compound slide   D  adjusting tool

For changing the rotation of feed rod, which lever should be used?
A  Feed change lever            B  Carriage locking lever
C  Feed selector                    D  Feed reverse lever

Which type of chip formation would be the best for turning mild steel?
A Long curly chips   B Segmented chips   C I - Shaped chips   D Spiral chips

For knurling operation, the rotation of the spindle speed is....
A   1/2 of the tuning spindle speed      B   1 /3 of the turning spindle speed
C   equal to turning spindle speed       D   equal to high spindle speed

For turning the cast iron, which the following should be used?
A  Soluble oil    B  No cutting fluid   C  Cutting oil    D  Water as coolant

The function of the cutting fluid in lathe operation is......
A  cleaning and lubrication
B  chip removal and lubrication
C  better finish and lubricant
D  cooling and flushing chips away from the cutting tool

The protection guard over the grinding wheel is fixed to protect the......
A  spindle of the pedestal grinder     B  grinding wheel
C  work pieces                                 D operator

For grinding wheel, which one is
represented by the symbols A to Z ?
A   Grit size             B   Silicon carbide
C   Bond material    D  Grade of the grinding wheel

The tolerance of a hole is the difference between the...........
A   maximum hole and the minimum shaft
B   maximum hole and the minimum hole
C   minimum hole and the maximum shaft
D   maximum hole and the maximum shaft

The three main classes of fits used in the B.I.S system are.......
A   clearance, transition and interference
B   loose fit, sliding fit and shrinkage fit
C   round fit, fiat fit and expansion fit
D   tight fit, push fit and medium fit

### FITTER THEORY SEM I JULY 17 QUESTIONS

FITTER THEORY SEM I JULY 17 QUESTIONS

FITTER
(THEORY & EMPLOYABILITY SKILLS)
SEMESTER -1

A slight convexity is given in the cutting edge of the flat chisel is to_
a) Cut keyway on shaft
c) Cut curved surface
b) Prevent digging of the ends
d) Cut sharp corners

The purpose of tempering a hardened steel component is for_.
a) Increasing its hardness
c) Increasing its ductility
b) Reducing its brittieness
d) Increasing its toughness

Number of graduations on the thimble of a metric micrometer
a) 10
c) 100
b) 50
d) 1000

Which one of the marking media takes longer time to dry?
a) Chalk powder
c) Copper sulphate
b) Prussian blue
d) Cellulose lacquer

The important elements in soft solder is_.
c) Tin and copper
d) Tin and zinc

The size of the dividers is specified by the_
a) Distance between points when opened fully
b) Total length of the legs
c) Distance between the pivot and the points
d) Length of the legs without points

Try square is checking for_.
a) Check the round surface
c) Check the flat surface
b) Check the groove surface
d) Check the irregular surface

The value of one thimble scale division in a micrometer is_
a) lmm
c) 0.02mm
b) 0.5mm
d) 0.01mm

Diluted Hydrochloric acid is used as flux for soldering_.
a) Copper sheets
c) Stainless steel sheets
b) Brass sheets
d) Galvanized iron sheet

Least count of micrometer is_.
a) 0.1 mm
c) 0.2 mm
b) 0.5 mm
d) 0.01 mm

What is the part used to change the range of depth micrometer?
a) Thimble
b) Stock
d) Extension rod

Which work holding device support the round job, while drilling the job on a drilling
machine?
a) ' V block and clamps, bolts, packing piece
b) The machine vice and bolts, packing piece
c) The hand vice with clamps, bolts
d) The pin vice with clamp, bolts

The best placement of the stock for heating in the forge is_
a) Below the tuyere with the fire coming from deep inside
b) On the top of the fixe covered with a tJiin layer of coal
c) Away from the tuyere with a thick layer of coal on the top
d) Near the tuyere allowing the air to fall directly on the Stock

Micrometer is based on the principle of_.
a) Nut and bolt
c) Rack and pinion
b) Differences of two scales
d) None of these

Vernier caliper can be used to measure_____.
a) Outer dia of a hole c) Depth of blind hole
b) Inner dia of a Hole d) All of these

After hardening process, the metal becomes more_.
a) Malleable
c) Tough
b) Brittle
d) Ductile

Which hammer is used for sheet metal work?
a) Ball pein Hammer
c) Cross pein Hammer
b) Sledge Hammer
d) Soft Hammer(wood)

Drill chuck is used to hold_.
a) Straight shank drill
c) Arbor
b) Taper shank drill
d) Drill socket

The purpose of ihe rivet set used in riveting is_.
a) To bring the sheet closely together
b) To straighten the sheet before riveting
c) To remove the burT between the sheets
d) To align the rivet in correct position

Striking portion of the hammer is called
a) Eye c) Handle
b) Peen d) Cheek

More spatters are used for_.
a) Slow speed c) More speed
b) Exfcess current d) Bigger gauge of electrode

A micrometer has negative error 0.03mm shows a reading of 25.52mm. The correct
dimensions is_.
a) 25.50 mm c) 25.57 mm
b) 25.55 mm d) 25.60 mm

Temperature of hotness of workpiece in a forge is judged approximately
a) Color c) Structure
b) Weight d) Smell

After threading a hole by a tap, it was found that the crest of the thread was not formed
completely. Why?
a) Hole size slightly more than the tap drill
b) Insufficient coolant supply
c) Broken the tip of cutting edge of the tap.
d) Hole size slightly less than the tap drill size.

a) Mild steel c) Copper
b) Cast iron d) Ceramic

Which type of non destructive test is suitable to check the internal defects of weld in high
pressure boiler welding?
a) Visual Test c) Magnetic particle test
b) Liquid penetrant test d) Radiographic test

A ne w hacksaw blade after a new strokes become loose because of the_
a) Wing nut thread being worn out c) Stretching of the blade
b) Improper selection of the set of screw d) Wrong pitch of the blade

Length of file is measured from tip to_-
a) Edge c) Face
b) Heel d) Tang

The sizes of a wing compass range between_.
a) 0 to 50mm - c)200to500mm
b) 50 to 200 mm d) 500 to 1000 mm

Fire clay, dinas and talc bricks are main refractory material employed in Forge. What is
the melting point of natural talc_.
a) 1000°C c) 1500°C
b) 1200°C d) 1700°C

The swage is a tool used in forge shop which is made of_.
a) High carbon steel c) Medium Carbon steel
b) Malleable Cast iron d) Low carbon steel

The type of Hammer used in forge shop weigh from 1 to 2 kgs and is fitted with short
wooden handle is_.
a) Hand Hammer c) Ball pane hammer
b) Sledge Hammer d) Straight pane hammer

Drawing out process is done on anvil. Name the part on operation is
a) Face c) Tail
b) Beak d) Round Hole

a) Rivet Set c) Snap
b) Dolly d) Drift

Name the cutting tool fixed in the Anvil square hole_
a) Hot set c) Cold set
b) Hard Die d) Anvil

While normalizing the component should be cooled by__.
a) Dipped in water c) Quenching in oil
b) FORCED air d) In still air to room temperature

Shapes of file is specified by its_-
a) Length c) Cross section
b) Width d) Thickness

a) Mild steel c) Brass
b) High carbon steel d) Cast Iron

Solder used for cooking utensils_.
a) Copper c) Tin

The acetylene gas cylinder is painted__.
a) Black c) Red
b) Maroon d) Blue

Protect eyes from welding spark_-
a) Hydrochloric Acid c) Phosphoric acid
b) Zinc Chloride d) Resin

The preferred material for soldering bit is_.
b) Tin d) Zinc

The type of brush used to remove coarse rust in a sheet metal before painting
is_.
a) Wooden brush 0 Wire Brush
b) Nylon brush d) Painting brush

If a patient does not respond to mouth to mouth resuscitation treat, a first -aider should
immediately_.
a) Seek medical help c) Keep the body worm with blankets
b) Check the broken limbs d) Check pupils of eyes and pulse

Which type of chisel is used for cutting keyways Groove and slots?
a) Flat chisel c) Half round nose chisel
b) Cross cut chisel d) Diamond point chisel

The property of a metal by which it can be drawn into thin wire_
a) Elasticity c) Malleability
b) Ductility d) Plasticity

The convexity of file helps_-
a) To file concave surface
b) To file convex surface
c) To prevent rounding of edges of work.
d) The file to become straight when pressure is applied.

The drilling machine used for light duty work_.
a) Bench type sensitive c) Radial
b) Pillar type d) Gang

The recommended point angle of the chisel to cut mild steel is
a) 30° c) 55°
b) 45° d) 60°

Which grade of file is used for removing rapidly a large quantity of metal?
a) Dead smooth file c) Second cut file
b) Smooth file d) Rough file

### FITTER THEORY SEM II JULY17 QUESTIONS

FITTER THEORY SEM II JULY17 QUESTIONS

july 2017 semester-2 fitter theory
Jenny caliper is used to
a) For finding the external of round bar b) For finding the internal round bar
c) For finding the center of round bar d) For finding the angles

While drilling the drill gets overheated this is due to......
a) More lip clearance angle b) Less cutting angle
c) Material being drilled is ductile d) Excessive cutting pressure

Angle of BSW 'V form thread is............
a) 60° b) 55°
c) 47.5° d) 45°

To find/ check the clearance between two mating parts,..........Gauge is used
c) Feeler d)Plug

Vernier height gauge works on the principle similar to
a) Vernier micrometer b) Vernier caliper
c) Vernier bevel protector d) None of the above

Which of the following thread is used for transmitting motion?

The coating of electrodes for welding mild and low alloy steels...... is used to provide
gaseous shield with reducing agent.
a) Metal Carbonates b) Titanium Oxide
c) Ferromanganese and Ferro silicon d) Cellulose

Shaping of grinding wheel to make it run concentric with the axis is called: -
a) Dressing b) Truing
c) Balancing d) Glazing
Bronze is an alloy of copper and.........
a) Zinc b)Tin
The difference between the maximum limit of sizes is equal to
a) Upper deviation b) Lower deviation
c) Tolerance ■ d) Actual size

Name the Instrument to measure the diameter of round rod.
a) Depth Micrometer b) Inside micrometer
c) Outside micrometer d) Tube micrometer
4
Which one of the following elements cannot be checked with the screw pitch gauge
c) Profile d. Depth
Operation for making a seat for bolt head, washer or nut is called
a) Spot facing b- Counter boring
c) Countersinking d. Grooving

The Number of divisions on Vernier scale of a Vernier micrometer (metric) are: -
a) 5 b) 10
c) 50 d) 100

The surface of a grinding wheel develops a smooth and shining appearance is called -
c) Dressing . d) Truing
a) Forged wrought iron . b) Mild Steel
c) High carbon steel d) Aluminum
What is the functional part "pilot" provided in reamers-
a) Finish Concentric Hole b) Removing chips
c) Hold in tap wrench d) Hold in machine spindle.

Pudding furnace is used to produce............
a) Pig Iron b) Cast Iron
c) Wrought Iron d) Steel
In Oxy acetylene welding, color of oxygen cylinder is
a) Red b) Maroon
c) Black d) Brown
Which flame is suitable for cutting operations-
a) Oxidizing flame b) Carburizing flame
c) Neutral Flame d) None of these
Which flame is suitable for welding of non ferrous metals (brasses and bronzes)
a) Oxidizing flame b) Carburizing flame
c) Neutral Flame d) None of these

A left hand screw advances in: -
a) Clockwise b) Anticlockwise
c) Any direction d) None of these

Acme thread is a modified form of:-

Mechanical seals are used to: -
a) Prevent vibration b) Prevent leakage
c) Reduce Function d) Balance the equipment

Interchangeability of parts is best suited for: -
a) Batch production b) Mass production
c) Job production d) None of the above

Hook Scrapers are used for scraping......
a) Curved surface b) Hollow Surface
c) Centre portion of a flat surface d) Bend surface

In Marking of grinding wheels,...........compulsory symbols are used?
a) 7 b)8
c) 6 d) 5

While over tighten the bench vice which part will get damage?
a) Handle • b) Spindle
c) Square nut d) Fixed Jaw

Zero line represents:
a) Upper deviation
c) Zero deviations
b) Lower deviations
d) None of the above

Twist drill are made of ■ ,
a) High speed steel .   b Low carbon steel
c  Stainless steel d) Wood

Which type of apron is used while during welding
a) Cotton
c) Silk
b) Plastic
d) Leather and worn

Which one of the following is not reason for accident
a) unawareness of danger b) Negligence
c Improper use of tools d) Using gloves

In Lap Joint, plates are kept , _
a) At straight angle b In butt positions
c) Overlap position d) At a angle

Killed steel is opposite of...............steel
a) Carbon
c) Rimmed
b) Alloy
d) None of these

Welding flux is used for
c) Reduction
b) Oxidation
d) To stop oxidation

The least count of a Vernier bevel protectors
a) 1"
*) 1°
b) 5"
d)5°

What should be done immediately if a cylinder leaks due to defective valves or safety plug

a) Try to repair it yourselt
c) Inform other to the suppliers
b) Ask other to repair it
d) Move it to a safe area

Pressure welding process, generally used in sheet metal fabrication is called
a) Arc welding
c) Spot welding

b) Gas welding
d) Thermit welding

The clearance angle of a drill is between
a) 3° to 5°
c) 12° to 20°
b) 8° to 12°
d) 15° to 20°

Property of wr ought iron is decide by-
a) Carbon and magnesium b) Carbon and manganese
c) Aluminum and carbon d) Magnesium and manganese

The drilled hole is more than drill size due to
a) Incorrect clearance b) Unequal lip lengths
c) Inappropriate cutting angle d) Large Helix angle

### EMPLOYABILITY SKILLS SEM I JULY17 QUESTIONS

PAPER -1
SEMESTER-I
(MORNING SESSION)
(COMMON FOR ALL ENGG & NON ENGG TRADES)

PART - B (EMPLOYABILITY SKILLS)

He would starve to death rather than_a loan.

It was easy to guess what they had been doing_.
a) From living b) So as to live
c) For a living d) To live

a) Oral b) Written
c) Usual d) Audio

Once the message is encoded in a desired format it is transferred through a medium called
a) Channel b) Medium
c) Media d) Way

It is important to consider proper__ where you are giving your presentation.
a) Darkness b) Lighting
c) Lightning d) Ventilation

Any word that adds more meaning to the noun is called

Our dress code is an example of__ communication.
a) Verbal b) Nonverbal
c) Written d) Spoken

The application letter is -
a) A description of your core strengths and suitability for the job
b) A statement of your job objective
c) . A summary of your qualifications and experiences
d) A foreword

A light sensitive device that converts drawing, printed text or other images into digital form
is-
a) Keyboard b) Plotter
c) Scanner d) OMR

In order to tell Excel that we are entering a formula in cell, we must begin with an operator
such as -
a) \$  b) @  c) =  d) +

Microsoft Word is an example of-
a) An operating system b) Processing device
c) Application software d) System software

The      ._program compresses large files into a smaller file.
a) WinZip b) WinShrink
c) WinStyle d) None of these

Ctrl + C is used to -
a) Copy the selected text b) Cut the selected text
c) Paste the selected text d) Print the selected text

Which of the following is not the correct method of editing the cell content?
a) Press the Alt key b) Press the F2 key
c) Click the formula bar d) Double click the cell

LAN stands for -
a) Local Area Net
c) Local Area Network
b) Long Area Network
d) Long Area Net

Which of the following should be used when you want to add a slide to an existing
presentation?
a) File, add a new slide b) Insert, New slide
c) File open d) File, new

Communication is a non-stop_
a) Paper b) Process
c) Programme d) Plan

Environmental barriers are same as       "_noise.
a) Physiological b) Psychological
c) Physical d) Cultural

Personification of strength and violence are considered as___gender.
a) Masculine b) Feminine
c) Common d) Neuter

The_are used to present using overhead projectors.
a) Acetate film sheet b) Paper sheet
c) Polythene sheet d) Butter paper

In_ listening the main intension is to seek certain information which will be
appreciated,
a) Empathetic
c) Evaluative
b) Appreciative
d) Dialogic

_context refers to the similarity of backgrounds between the sender and the
a) Physical b) Social
c) Cultural d) Chronological

Understanding      ._different parts of speech forms the base of leaning grammar.
a) Five b) Eight
c) Seven d) Six

When you should plan to arrive for your interview -
a) 2 hours early b) 1 hours early
c) 30 minutes early d) Right on time

The experience of feeling competent to cope with the basic challenges in life and of being
worthy of happiness is -
a) Arrogance b) Self-esteem
c) Wishful thinking d) Self efficacy

### FITTER THEORY SEM IV JAN16 QUESTIONS

FITTER THEORY SEM IV JAN16 QUESTIONS
SEM 4 JAN2016 FITTER
The accurate spacing of teeth in a gear blank requires the use of...........
A  dividing head                     B  an index plate
C  a differential mechanism    D  universal table

Helical gears can be cut on which type milling machine?
A Plain B Horizontal C Universal D Drum tvnp

The carburizing is done on
A   high carbon steel  B   medium carbon steel
C   low carbon steel    D   high speed steel

The damaged external threads are rectified by......
A  die nut   B   half die    C   circular die    D  adjustable screw plate die

The included angle of a pipe thread is
A  60°   B  47°   C  55°  D  45°

Which clutch can be engaged progressively
when one or both the elements are rotating?
A   Single plate clutch     B  Cone clutch
C   Centrifugal clutch      D   Dog clutch

The standard pipe fittings are provided with threads conforming with.......
A BA   B BSW   C BSP   D Metric

Which of the following can hold the work, locate the work and guide the tool at the desired position?
A   Drill bush  B   Drill fixture  C   Drill jig  D  V-block

In the pipe assembly, the hemp packing is used to................
A  fill the gap between threads    B  avoid leakage
C   get tight fitting                      D  easy engagement

Which type of gear converts rotary motion to linear motion?
A  Rack and pinion      B  Worm and worm wheel
C   Hypoid gear            D   Internal gear

Where a large speed reduction is desired, which type of gear is used?
A  Worm and worm wheel  B   Helical bone gear
C   Hypoid gear                   D   Herring bone gear

The application of pressure pads in fixtures is to..........
A  increase the shocks   B   increase the vibration
C  absorb shocks           D   increase the weight

Which type of gas flame is most suitable for brazing?
A  Oxy-LPgas flame               B   Oxy-coal gas flame
C   Oxy-acetylene gas flame    D   Oxy-hydrogen gas flame

Aluminium is widely used in aircraft industry because it is..................
A  corrosion resistant B  soft and ductile
C   light in weight      D  low tensile strength

Water flows from tap even when firmly closed, what is the reason?
A Defective washer    B  Spindle bent
C  Retainer nut loose  D  Spindle thread worn out

Which  metal   is   used  for  coating in galvanizing?
A Lead    B Brass    C Zinc    D Aluminium

Which one of the following is liquid lubricant?
A Grease  B Molybdenum disulphide  C Synthetic oil  D Wax

The radial distance between the pitch circle and the root circle is called...........
C  working depth of the teeth         D whole depth of the teeth

Bronze is an alloy of
A copper and tin   B copper and zinc  C copper, zinc and tin  D zinc and tin

A master gauge is...........
A  used by masters
B  a standard gauge for checking accuracy of gauges used on shop floors
C   used by all mechanics
D  a gauge used by experienced technician

The fire triangle in fire hazards is identified as..............
A  fuel, oxygen and heat      B  fuel, oxygen and vapour
C  fuel, burning and solid    D  fuel, oil and waste

Drilling jigs are used for..........
A drilling operation only
B  clamping the jobs while drilling
C  drilling, reaming, tapping and other allied operations
D  sharpening drill to correct angle

Which type of crow bar is easier to handle, and the point will fit into a narrow gap?
A Short crow bar B Long crow bar
C Single ended crow bar D Double ended crow bar

Name the fixed type foundation bolt that is usually forged and filled up with lead and cement?
A  Eye bolt  B  Rag bolt  C  Ordinary bolt  D  Bent type bolt

In a V belt the angle between the side is....
A 10°    B 20°    C 30°  D 40°

In which clutch, the pressure plate is used?
A  Multiple plate clutch     B  Dog clutch
C  Over riding clutch         D   Centrifugal clutch

The sensitiveness of the spirit level depends upon the............
A  size of the bubble                                      B   length of the glass tube
C   type of liquid filled in the glass tube         D  curvature of the glass tube

The use of travelling wall crane is..............
A  it allows the load to move horizontally to or from the box
B  it allows the load to move in three directions
C  an endless chains
D  two separate chains

What is the function of Dog clutch?
A   It can be engaged progressively when one or both the elements are rotating
B   It can only be engaged when two elements of the clutch are stationary
C   When the speed is reduced the clutch opens by itself
D   Contact force is produced by springs

Generally solder is an alloy of...............
A copper and tin   B  lead and tin   C  zinc and tin   D  antimonv and tin

Aluminium is extracted from the ore
A pyrite   B bauxite   C aluminium oxide   D magnetite

Best conductor of heat and electricity is.............
A nickel  B chromium   C aluminium  D copper

Which metal can be joined by soldering and brazing easily than aluminium?
A Silver   B Copper   C Chromium   D Zinc

In braze welding, the filler rod melting point is...........
A above 450°C   B above 550°C   C above 600°C  D above 650°C

Which of the following fire extinguishing agent is suitable for a live electrical fire?
A Water  B  Carbon dioxide  C  Carbon tetrachloride  D Foam

Which of the following is the non-metallic anti corrosion treatment?

The standard size of V belt from section 'D' nominal top width is.........
A 22 mm  B 32 mm   C 38 mm   D   17 mm

Taper keys are rectangular cross section. They have a taper of..........
A  1 :100 on the thickness B   1 :90 on the thickness
C   1 : 80 on the thickness  D   1 : 70 on the thickness

The belt slips, due to................
A  less tension  B  misalignment  C  pulsating load  D  high starting torque

Which pipe wrench is used for holding large diameter of a pipe?
A  Chain wrench  B  Allen wrench  C   Strap wrench  D   Pipe wrench

The error in squareness can be accurately determined by using a...................
A  try square and slip gauge           B   try square and feeler gauge
C  cylinder square and slip gauge   D   beveled edge try square

The spirit level is used for checking the level of machine when..........
A   lifting the machine    B  erecting the machine
C  shifting the machine   D  grouting the machine

What is the function of a soldering iron in the soldering process?
A  Melt the metal   B  Melt the solder  C  Cool the solder  D  Cool the metal