July2016 FITTER TRADE THEORY SEMESTER - IV

July2016 FITTER TRADE THEORY SEMESTER - IV

The following is machined dry.
a) Aluminium
b) Cast iron
c) Titanium
d) All of these

The following device is used to determine the mix ratio of water-soluble coolants:
a) Diffract meter
b) Hydrometer
c) Refract meter
d) None of these

The use of metal working fluids ......
a) Increase the tool life
b) Produce better surface finish
c) Prevent rise in temperature
d) All of these

The main constituent(s) of mineral oil is/are ...........
a) Paraffin
b) Naphthenic
c) Aromatics
d) All of these

The following is used in heat treatment process as a quenching medium for obtaining a higher degree of hardness.
a) Mineral oil
b) Fatty acid
c) Waxes
d)Graphite suspensions

Which of the following is added to the cutting fluids so that soapy film is produced between the work piece & tool and chip & tool face?
a) Sulphur
b) Chlorine
c) Both (a) & (b)
d) None of these

Soluble oil is used as cutting fluid in ............
a) Sawing
b) Drilling and boring
c) Reaming
d) All of these

Usually no cutting oil is used in
a) Broaching
b) Planning and shaping
c) Thread rolling
d) Honing

Choose name of the bolt.
a) Gib Headed foundation bolt
b) Cotter foundation bolt
c) Through foundation bolt
d) Eye foundation bolt

........... are used to separate the tramp oil (sump oil) from coolant.
a) Magnetic separators
b) Skimmers
c) Rotating spindles
d) All of these

Which of the following parameters influence the axial feed rate in centreless grinding?
a) Regulating wheel diameter
b) Angle between the axes of grinding and regulating wheels
c) Speed of the regulating wheel
d) All of these

Hydraulic oil is compressible ........
a) Not at all
b) Very much
c) Very Little
d) None of these

Power =Torque x ............
a) Velocity
b) RPM
c) Force
d) Area

is prime mover in hydraulic system.
a) Oil
b) Electric Motor
c) Pipe
d) Impeller

Power of Pump ........... x Volume flow rate.
a) Velocity
b) RPM
c) Force
d) Pressure

1HP= ........?
a) 746 b) 1000 c) 100 d) 764

Which flat belt drive system has two pulleys mounted on driven shaft and one pulley on driving shaft?
a) Multiple belt drive
b) Cone pulley drive
c) Fast and loose pulley drive
d) None of these

Which of the following statements are false for belt drives?
i) Belt drive is used in applications having constant speed drive  ii) Belt drives can be used at extremely high speeds iii) Belt drives have low power transmitting capacity iv) Belt drives need continuous lubrication
a) (i) & (ii)
b) (i), (ii) & (iii)
c) (ii), (iii) & (iv)
d) (i), (ii) & (iv)

Determine power rating of an electric motor if it runs at 1440 r.p.m and line shaft  transmits torque of 75 Nm. Assume Reduction ratio = 1.6 .........
a) 10.36 kW
b) 11.3 kW
c) 7.068 kW
d) 9.12 kW

In simple gear trains the direction of rotation of driven gear is opposite to the   direction of rotation of driving gear only if
a) Even number of idler gears are present
b) Odd number of idler gears are present
c) Any number of idler gears are present
d) None of these

Why is an idler gear used in gear trains?
a) To obtain minimum center distance between driving and driven shaft
b) To have required direction of rotation
c) Both (a) & (b)
d. None of these

Determine torque transmitted on the pinion shaft if torque transmitted on gear shaft is  20 nm consider Gear ratio 4
a) 8 nm
b) 5 nm
c) 80 nm
d) 16 nm

Which of the following statements is/are true for gear drives?
a) They can be used for long center distances
b) They are used to transmit power between non-intersecting and parallel shafts
 c) They cannot be used for high reduction ratios
 d) All of these

Which gears are used to connect two intersecting shaft axes?
a) Crossed helical gear
b) Worm and worm wheel
c) Bevel gears
d) All of these

What is meant by gear ratio?
a) The ratio of pinion speed and gear speed
b) The ratio of number of teeth on pinion and number of teeth on gear
c) Both (a) & (b)
d) None of these

What is the function of hydraulic motor?
1. Hydraulic motor converts hydraulic oil under pressure into torque and angular   displacement
2. Hydraulic motor converts hydraulic oil under pressure into force and linear displacement
3. Hydraulic motor converts hydraulic energy into mechanical energy 4. Hydraulic motor converts mechanical energy into hydraulic energy
a) I and 4
b) I and 3
c) 2 and 3
d) 2 and 4

Calculate area of a pipe if, flow rate is 20 1/min and flow velocity is 5 cm/s.
a) 66.66 cm.sq.
b) 60 cm.sq.
c) 62 cm.sq.
d) None of these

What this hydraulic symbol means ..............
a) Motor unidirectional
b) Motor bidirectional
c) Pump unidirectional
d) Pump bidirectional

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 composition of electrician solder is ..............
a) Lead-37%, tin-63%
b) Lead-50%, tin-50%
c) Lead-63%, tin-37%
d) Lead-70%, tin-30%

The composition of soft solder is .............
a) Lead-37%, tin-63%
b) Lead-50%, tin-50%
c) Lead-63%, tin-37%
d) Lead-70%, tin-30%

Corrosion can be prevented by ..............
a) Alloying
b) Tinning
c) Galvanizing
d) All of these

As compare to iron, aluminum has ..............
a) Higher tendency to oxidize
b) Less tendency to oxidize
c) Equal tendency to oxidize
d) None of these

Conditions for good electroplating is/are .............
a) High current density
b) Low temperature
c) High concentration of metal in electrolyte
d) All of these

Iron is galvanized by coating with .................
a) Zinc
b) Tin
c) Copper
d) Nickel

Which defect arises due to faulty heat treatment?
a) Over heating and burring
b) Oxidation and decarburization
c) Cracks, distortion and warping
d) All of these

In general, hardening is followed by .............
a) Annealing
b) Normalizing
c) Tempering
d) Case hardening

This type of fastener is designed to prevent movement between shafts and wheels.
a) Keys
b) Machine pins
c) Rivets
d) Knuckle

A mechanical device that stores energy, when deflected and to return the equivalent amount of energy when released is known as a ............
a) Blind rivet
b) Key way
c) Spring
d) Hammer
 
Joint strength in brazing operation is ...........
a) As high as in gas or arc welding
b) Not as high as in gas or arc welding
c) Higher than that of in gas or arc welding
d) Unpredictable

Which of the following is a soft solder?
a) Copper-zinc alloy
b) Nickel-silver alloy
c) Lead-tin alloy
d) All of these

Transmission angle is the angle between
a) Input link and coupler
b) Input link and fixed link
c) Output link and coupler
d) Output link and fixed link

What this hydraulic symbol means ...........
a) Directional control valve
(4 ports /2 positions)
b) Directional control valve
(4 ports /3 positions)
c) Directional control valve
(5 ports /2 positions)
d) None of these

Module of a gear is ..........
a) D/T
b) T/D
c) 2D/T
d) 2T/D

When screw threads are to be used in a situation where power is being transmitted in   one direction only, then the screw threads suitable for this will be .................
a) Square threads
b) Knuckle threads
c) Acme threads
d) Buttress threads

Which of the following material has the maximum ductility?
a) Mild steel
b) Copper
c) Aluminium
d) Zinc

The sleeve or muff coupling is designed as a ...............
a) Dun cylinder
b) Solid shaft
c) Thick cylinder
d) Hollow shaft

In a flange coupling, the flanges are coupled together by means of .................
a) Studs
b) Bolts and nuts
c) Headless taper bolt
d) None of these

An open belt drive is used when .................
a) Driven shaft is to be started or stopped whenever desired without interfering with   the driving shaft
 b) Shafts are arranged parallel and rotate in the same directions
c) Shafts are arranged at right angles and rotate in one definite direction
d) Shafts are arranged parallel and rotate in the opposite directions

When bevel gears connect two shafts whose axes intersect at an angle greater than a right angle and one of the bevel gears has a pitch angle of 900, then they are known as ...............
a) Internal bevel gears
b) Angular bevel gears
c) Crown bevel gears
d) Mitre gears

Wireman theory sem 4 july 2017

17/B/C/S-4/4/EPAPER -1
WI REMAN
(THEORY)
SEMESTER - IV

In a transformer the energy is conveyed from primary to secondary___
a) Through cooling coil b) Through air
c) By the flux d) None of these

A transformer core is laminated to_.
a) Reduce Hysteresis Loss b) Reduce Eddy Current Losses
c) Reduce Copper Losses d) Reduce All Above Losses

The path of a magnetic flux in a transformer should have_
a) High resistance b) High reluctance
c) Low resistance d) Low reluctance

The dielectric strength of transformer oil is expected to be___.
a) IkV b) 33 kV c) 100 kV d) 330 kV

The purpose of providing an iron core in a transformer is to
a) Provide support to windings
b) Reduce hysteresis loss
c) Decrease the reluctance of the magnetic path
d) Reduce eddy current losses

Which of the following is not a part of transformer installation?
a) Conservator      
b) Breather
c) Buchholz relay  
d) Exciter

While conducting short-circuit test on a transformer the following side is short circuited,
a) High voltage side
b) Low voltage side
c) Primary side      
d) Secondary side

Which winding in a transformer has more number of turns?
a) Low voltage winding
b) High voltage winding
c) Primary winding
d) Secondary winding

Efficiency of a power transformer is of the order of___.
a) 100 per cent      
b) 98 per cent
c) 50 per cent
d) 25 per cent

A common method of cooling a power transformer is___
a) Natural air cooling
b) Air blast cooling
c) Oil cooling
d) None of these

In the transformer the function of a conservator is to__.
a) Provide fresh air for cooling the transformer
b) Supply cooling oil to transformer in time of need
c) Protect the transformer from damage when oil expends due to heating
d) None of the above

No-load current of a transformer has_
a) Has high magnitude and low power factor
b) Has high magnitude and high power factor
c) Has small magnitude and high power factor
d) Has small magnitude and low power factor

The power transformer is a constant_.
a) Voltage device  
b) Current device  
c) Power device    
 d) Main flux device

Two transformers operating in parallel will share the load depending upon their
a) Leakage reactance
b) Per unit impedance
c) Efficiencies
d) Ratings

In a transformer the tappings are generally provided on
a) Primary side      
b) Secondary side  
c) Low voltage side
d) High voltage side

The chemical used in breather for transformer should have the quality of _
a) Ionizing air
b) Absorbing moisture
c) Cleansing the transformer oil d) Cooling the transformer oil

The transformer ratings are usually expressed in terms of.................
a) Volts
b) Amperes
c) kW
d)kVA

Material used for construction of transformer core is usually__.
a) Wood
b) Copper
c) Aluminium
d) Silicon steel

The function of conservator in a transformer is_.
a) To project against'internal fault
b) To reduce copper as well as core losses
c) To cool the transformer oil
d) To take care of the expansion and contraction of transformer oil due to variation of
temperature of surroundings

Buchholz's relay gives warning and protection against_
a) Electrical fault inside the transformer itself
b) Electrical fault outside the transformer in outgoing feeder
c) For both outside and inside faults
d) None of the above

The value of flux involved m the e.m.f. equation of a transformer is____-
a) Average value    
b) r.m.s value
c) Maximum value  
d) Instantaneous value

Silicon steel used in laminations mainly reduces______.
a) Hysteresis loss  
b) Eddy current losses
c) Copper losses    
d) All of these

Which of the following is the main advantage of an auto-transformer over a two winding
transformer?
a) Hysteresis losses are reduced b) Saving in winding material
c) Copper losses are negligible
d) Eddy losses are totally eliminated

Two transformers are connected in parallel. These transformers do not have equal
percentage impedance. This is likely to result in___.
a) Short-circuiting of the secondaries
b) Power factor of one of the transformers is leading while that of the other lagging
c) Transformers having higher copper losses will have negligible core losses
d) Loading of the transformers not in proportion to their kVA ratings

Open circuit test on transformers is conducted to determine
a) Hysteresis losses
b) Copper losses    
c) Core losses
d) Eddy current losses

Short circuit test on transformers is conducted to determine.
a) Hysteresis losses
b) Copper losses    
c) Core losses
d) Eddy current losses

The size of a transformer core will depend on
a) Frequency
b) Area of the core
c) Flux density of the core material
d) Both (a) & (b)

Which of the following parts of a transformer is visible from outstde?
a) Bushings
b) Core
c) Primary winding
d) Secondary winding

Auto-transformer makes effective saving on copper and copper losses, when its
transformation ratio is_______.
a) Approximately equal to one
b) Less than one
c) Great than one
d) None of these

Part of the transformer which is most subject to damage from overheating is _
a) Iron core
b) Copper winding  
c) Winding insulation
d) Frame or

In a thermal power plant cooling towers are used to____
a) Condense low pressure steam
b) Cool condensed steam
c) Cool water used in condenser for condensing steam
d) Cool feed water of boiler

Advantage of hydro-electric power station is__________.
a) Low operating cost
b) Free from pollution problems
c) No fuel transportation problems
d) All of these

Which power plant normally operates at high speeds?
a) Diesel engine plant
b) Petrol engine plant
c) Steam turbine plant
d) Hydroelectric power plant

By which of the following systems electric power may be transmitted?
a) Overhead system
b) Underground system
c) Both (a) & (b)
d) None of these

Overhead system can be designed for operation up to _
a) 11 kV
b)33kV
c)66kV
d) 400 kV

Which of the following materials is not used for transmission and distribution of electrical
power? j
a) Copper
b) Aluminium
c) Steel
d) Tungsten

Galvanised steel wire is generally used as_____.
a) Stay wire
b) Earth wire
c) Structural components
d) All of these

The usual spans with R.C.C. poles are___.
a) 40—50 meters  
b) 60—100 meters  
c) 80—100 meters  
d) 300—500 meters

The operating voltage of super tension cables is up to_.
a)3.3kV
b)6.6kV
c)llkV"
d)33kV

Which of the following methods is used for laying of underground cables?
a) Direct laying      
b) Draw-in-system  
c) Solid system      
d) All of these

The operating voltage of extra high tension cables is upto__.
a) 6.6 kV
b) 11 kV
c) 33 kV
d) 66 kV

High voltage transmission lines use______.
a) Suspension insulators
b) Pin insulators
c) Both (a) & (b)
d) None of these

High voltage transmission lines use______.
a) Suspension insulators
b) Pin insulators
c) Both (a) & (b)
d) None of these

Overhead lines generally use
a) Copper conductors
c) A.CS.R. conductors
b) All aluminium conductors
d)None of these

The material commonly used for sheaths of underground cables is_
a) Lead
b) Rubber
c) Copper
d) Iron

A feeder, in a transmission system, feeds power to___.
a) Distributors
b) Generating stations
c) Service mains  
d) All of these

Which circuit breaker is generally used in railway traction?
a) SF6 circuit breaker
b) Air break circuit breaker
c) Vacuum circuit breaker
d) Minimum oil circuit breaker

A relay used for protection of motors against overload is_.
a) Impedance relay
b) Electromagnetic attraction type
c) Thermal relay
d) Buchholz's relay

A circuit breaker will normally operate_____.
a) When the switch is put on
b) When the line is to be checked
c) When the power is to be supplied
d) Whenever fault in the line occurs

Which relay is used for feeders?
a) MHO relay
b) Translay relay
c) Merz price protection
d) Buchholz relay

Buchholz relay is operated by_.
a) Eddy current relay
b) Gas pressure
c) Electro-magnetic induction
d) Electro-static induction

Instrument mechanic theory sem july 15

Instrument mechanic theory sem july 15

What device is similar to an RTD bul has a negative temperature coefficient?
a) Strain gauge b) Negative-type RTD c) Thermistor d) Thermocouple

Temperature sensing can be achieved by the use of:
a) Thermocouples c) Thermistors b) RTDs d)Allof these

What is the moving part of a linear variable differential transformer?
a) Primary e) Diaphragm
b) Secondary d) Core

Which type of controller increases the stability of the system by keeping it at a consistent
selling?
a) Derivative c) On-Off
b) Proportional d) Integral

Which of the following is most suitable for measuring very high temperatures?
a) Thermocouple c) Thermometry thermometer
b) Pyrometer d) Platinum resistance thermometer

A....................... is usually a display device used to produce a paper record of analog wave form.
a) Graphic pen recorder c) X-Y recorder
b) Electron microscope d) Oscilloscope

PID stands for:
a) Proportionally Integrated Diode
b) Power Indication Display
c) Proportional Integral Derivative
d) Phase Inverting Driver

A programmable logic controller (PLC) normally replaces the following in control
applications:
a) Computer numerical control c) Humans
b) Distributed process control d) Relay control panel

Which of the following is not true of thermocouples?
a) They do not use a reference junction' c) They are composed ofdissimilar metals
b') They generate a small voltage d) They can be calibrated

What type of device is a sensor?
a) Input e) Output
b) Process d) Feedback

Physical or logical arrangement of network is :
a) Topology  c) Networking
b) Routing d) None of these

In this topology there is a central controller or hub:
a) Star c) Ring
b) Mesh d) Bus

This topology requires multipoint connection:
a) Star c) Ring
b) Mesh d)Bus

Data communication system spanning states, countries, or the whole world is:
a) LAN c) MAN
b) WAN d) None of these

Data communication system within a building or campus is:
a) LAN c) MAN
b) WAN d) None of these

Expand WAN
a) World area network
b) Wide area network
c) Web area network
d) None of these

Which transmission media has the highest transmission speed in a network?
a) Coaxial cable c) Optical fibre
b) Twisted pair cable d) Electrical cable

How many pins of R.I-45 connectors are required when used in lOBase-T networks?
a) 8 c) 2
b) 4 d) 6

A programmable controller is composed of two basic sections:
a) CPU and the input/output system
b) The processor and the input/output system
c) The memory system and the CPU
d) Input/output system

What does the term PLC stand for?
a) Programmable Lift Computer
b) Program List Control
c) Programmable Logic Controller
d) Piezo Lamp Connector

For whal purpose Pi rani gauge is used?
a) Low pressure measurement c) Medium pressure measurement
b) High pressure measurement d) All of these

psi in terms of pressure stands for
a) Per Square inch
b) Pounds per square inch
c) Pressure square inch
d) Perpendicular square inch

Low pressure unit is expressed in
a) Pound c) Torr
b) Kilogram . d) Gram

When designing a jacketed Container that will contain a highly exothermic reaction, what
type of actuator should be used to operate the valve controlling the cooling water?
a) Pneumatic c) Hydraulic
b) Motion conversion . d) Electric

Which of the following is a good application for a diaphragm valve?
a) Inlet to a container where precise volumes of reactants are required
b) Food industry where ease of cleaning is important
c) Steam heating line for jacketed Container
d) Vent on a signal line to release pressure to atmosphere

An LVDT uses a core. .
a) Moving displacement core c) Soft ferrite core
b) Variable core d) Hard iron fixed

In broadband pyrometer input radiation of________wavelength is used.
a) Heat radiation c) Infrared radiation
b) Source material heat radiation d) Ultraviolet radiation

Bellows convert pressure into ____
a) Air displacement
b) Differentia! blade spring piate displacement
c) Water displacement
d) Liquid displacement

A transducer converts from one form to another.
a) Sound c) Energy
b) Heat d) Electricity

The range of pH of acidic solution is between- ..............&....................
a) 5 to 10 c) 0to 6
b) 10 to 15 d) 7 to 14

Unit of Temperature in FPS System is:
a) Centigrade c) Kelvin
b) Fahrenheit d) Celsius

Unit of force in FPS system is:
a) Newton c) Pound
b) Kg. d) Gram

Control valve is a type of device in control system:
a) I npul device c) Output device
b) Feedback device d) Control clement

When using a stepper motor to drive a conveyor belt, what would increase the speed of the
conveyor belt?
a) Increasing the output voltage c) Increasing the frequency of pulses
b) Decreasing the output voltage d) Decreasing the frequency of pulses

If a linear actuator moves an external load, the work done by (he actuator on the external
load is;
a) Linear mechanical work c) Angular fluid work
b) Linear fluid work d) Angular mechanical work

EDDL stands for:
a) Electronic device description language b) Electronic drive description language
c) Electrically device displacement d) None of these

HART device in control protocol full form is:
a) High address road transmission c) Heat arm rate transfer
b) Highway addressable remote transducer       d) Halt array rale transfer

RTU means:
a) Range transmitter unit
b) Remote Transmitting Unit
c) Rota-meter Trans Unit
d) Remote terminal Unit

SCADA process control system means:
a) Supervisory control and data
b) Super control and data analysis
c) Sub control and data analysis
d) Supervisory control and data analysis

D.C.S. process control system means:
a) Data control system c) Data core system
b) Distributed control system d) Damaged control system

Standard Current process parameter sensor range is:
a) 01mA. To  10mA c) 01mA. To 100mA
b) 04mA. To   20mA d) 10mA. To 20mA

Load cell is transducer for:
a) Flow sensor
b) Temperature sensor
c) Weight sensor
d) Level sensor

these orifice plates are used for ideal liquid as well as gases and steam services:
a) Co-centric c) Eccentric
b) Segmental d) Square

Solenoid valve in process control is:
a) Input device c) Feedback device
b) Output device d) Timer device


Proximity switches are used for:'
a) Plow sensor
b) Level sensor
c) Pressure sensor
d) Temperature sensor

Pyrometer is used to measure:
a) High pressure c) High voltage
b) H igh temperature d) None of these

Standard voltage range for electrical sensor is:
a) 5 volt to 10 volt c) 1 volt to 10 volt
b) 2 volt to 10 volt d) 0.5 volt to 5 volt

In pj-ocess control P to I Convenor means:
a) Pressure to current convenor c) Pressure to Intensity converter
b) Pressure to Indicator value convenor     d) Pulse to inertia convenor

Rotameter is used for measurement of:
a) Level c) Volume
b) Flow d) Pressure

In process control HMI means:
a) Human motion indicator c) Hot machine indicator
b) Human Machine interface d) Hall machine interface

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........
A   lead to gaping.
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 ........
A  headless bush
B  liner bush .
C  slip renewable bush
D  headed 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 -
a) Quadrant b) Sequent c) Chord d) Radial line

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

Which one of the following grades of pencils have hardest lead?
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
threads conforming 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...........
A  dedendum                                B  addendum
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?
A Enamelling    B Cladding    C Sheradising   D Calorising


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

Hand taps are made from
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..................
radii of the given component
gap between the mating parts
particular standard thread pitch
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
B   lead and tin
C  copper and zinc
D   copper and lead

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
screw threads

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

BSW threads has angle of.
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
B   Thread forming tap
C   Gun tap
,D   Helical fluted tap

Plug tap is used to
A  start thread
B  rough thread
C  quick thread
D  finish thread

Double ended adjustable tap wrenches are
used for.............
hard material
large diameter
starting thread
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?
BSW thread
BA thread
Acme thread
Square thread

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
lead
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
are oraded as N1 toN12. The 'Nr grade
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
on collect adapter?
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 -
a.Lead-37%,tin63% b. Lead-67%, tin 37%
c. Lead-70%, tin 30% d- tead 50%.. tin 50%

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
strength of V-threads?
a. Square threads b. Acme threads
c. Knuckle threads A Buttress threads

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 -
a. Lead b. Turn
c. Crest d. Root

The distance from a point on the thread to the corresponding point of the next thread is called-
a. Lead b. Pitch
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 —
a. Metric thread b. Square thread
c. Acme thread d. Buttress thread

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 -
a. Lead b. Pitch
c. Turn d. Crest

The lead screw of a lathe has...........threads.
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
c. Thread cutting on lathe
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?
a. Acme threads b. Square threads
c. Buttress threads d. Multiple threads

& 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
c. Cutting of tapered threads
d. Cutting of multiple threads

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