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