FITTER THEORY SEM 3 JAN18

FITTER THEORY SEM 3 JAN18

The length of sine bar is given by the following
a) By the length of sine bar
b) By the distance between the centers of rollers
c) By the distance between the end point of both rollers
d) None of the above

For supporting the pipe-shaped hollow job, following centroid is used ..........
a) Revolving center
b) Inverse center
c) Half center
d) Pipe center

The full name of SWG is .........
a) Standard Wire Gauge
b) Straight Wire Gauge
c) Standard Width Gauge
d) Standard Wire Gear

Which of the following is the characteristic of bearing?
a) Minimum friction
b) Vibration free base
c) The ability to keep the shaft on its place
d) All ofthese

Which of the following washer is used where the loosening of bolts due to vibrations or shocks are more likely to be happen?
a) Plain washer
b) Spring washer
c) Tap washer
d) Fiber washer

Woodruff key have following type of shape —
a) Rectangular
b) Shape of the sector of circle
c) Round and Taper
d) Square

.............is used for the picking of steel.
a) Dilute sulfuric acid
b) Spirit
c) Troicloroethylene
d) Carbon Tetra Chloride

In lapping process, aluminum oxide abrasive is used ............
a) For hard metals
b) For non-ferrous metals
c) For hard steel
d) None of these

Among the following, reference surface while marking on any job is .......
a) Surface gauge
b) Workpiece
c) None of these
d) Surface of marking table

Te taper of the work piece kept on the lathe machine can be checked by following .......
a) Taper plug gauge or taper ring gauge
b) Universal bevel protector
c) Steel rule and micrometer
d) Sine bar and slip gauge

Which taper is used in the spindle of tail stock?
a) Morse taper
b) Browne and shape taper
c) Jarno taper
d) None of these

Face plate is made up of which of the following metal?
a) Cast iron
b) Wrought iron
c) High carbon steel
d) None of these

If the number size in wire gauge increases then the thickness of the wire will get .........
a) Less
b) More
c) Neither less nor more
d) None of these

Nut is a ............   
a) Temporary fastner
b) Semi-permanent fastner
c) Permanent fastner
d) None of these

Which of the following instrument is used to check the hills & vallies for the surface of the job?
a) By ammeter
b) By dial gauge   
c) By barometer
d) By profile

The place where bearing are fit is known as ......... meter
a) Friction
b) Housing
c) Shell bearing
d) Ball bearing

Lead screw of lathe is used for
a) Step turning
b) Boring
c) Taper turning
d) Thread cutting

Which of the following protects the long job from bending during turning?
a) Mandrel
b) Steady rest
c) Revolving center
d) Dog chuck

The method of cutting taper by tail stock is known as
a) Copying 
b) Offset
c) Long nose tool
d) Taper turning

Jobs are placed in ash or  for ............. annealing
a) Limestone
b) Coke
c) Pig iron
d) All of these

The included angle of acme thread is ............
a) 30°   b) 29° c) 47 1/2°   d) 60°

Thread snap gauge is used to check ..........
a) External diameter
b) External thread
c) Internal diameter
d) Internal thread

For correctly fixing the threading tool, .........  is used.
a) Try square
b) Threaded gauge
c) Center gauge
d) Tool attached with the face of the job

Which chuck has reversible jaws?
a) Collet chuck  
b) Four jaw chuck
c) Tail stock  
d) Head stock

..........is done for removing more brittleness of chisel.
a) Tempering b) Hardening
c) Carburizing d) Annealing  

The percentage of carbon in grey cast iron is  
  a) More than 6.67 % b) More than 2.1 %
c) Less than 2.1 % d) None of these

The diameter of NOT GO end is kept slightly than the actual size.
a) Bigger
b) Smaller
c) Equal
d) None of these

What does 16 represents in M16 x 55?
a) Length of shank
b) Diameter of threads
c) Both (a) & (b)
d) None of these

In which of the following lathe, so many tools can work together?
a) Bench lathe
b) Speed lathe
c) Turret lathe
d) None of these

Which of the following lathe is appropriate for mass production?
a) Turret lathe
b) Capstan lathe
c) Both (a) & (b)
d) Bench lathe

Tumbler gear is used for the following work .......
a) To accelerate the carriage from lead screw
b) To change the direction of the rotation of the lathe
c) To change the direction of feed
d) To change the velocity of spindle

Due to which reason, drill breaks during center drilling?
a) By giving too much feed
b) By reducing speed and feed
c) By trapping of chips
d) None of these

Which material is used to make the gauge of good quality?
a) Vanadium steel
b) Cast iron
c) Mild steel
d) None of these

Clearance between the mating parts is measured by which of the following gauge?
a) By dial gauge
b) By plug gauge
c) By feeler gauge
d) By caliper gauge

Which of the following method is used for putting abrasive on lap?
a) Lapping
b) Fixing
c) Charging
d) Rubbing

As compare to honing,   metal is removed in lapping.
a) Less
b) More
c) Very less
d) None of these


The surface finish of a surface is measured in ........
a) Foot
b) Meter
c) Micron
d) Centimeter

In honing process, which of the following is used along with simple abrasive and bonding material for making hon?
a) Sulphur
b) Resin
c) Wax
d) All of these

Nitride made the metals ........
a) Corrosion resistant
b) Wear resistant
c) Both (a) & (b)
d) None of these

Which of the following structure is formed by the rapid cooling of austenite structure of steel?
a) Pearlite
b) Cementite
c) Martensite 
d) None of these

CPI is the unit for measure the following ............
a) Thickness of wire
b) Diameter of nut
c) Pitch of threads of nut
d) Length of bolt

Split bearing is also known as ....
a) Pedestal bearing
b) Roller bearing
c) Pivot bearing
d) Plain bearing

Jobs with asymmetric surface cannot hold in the centre by which of the föllowing chuck?
a) By four jaw chuck
b) By three jaw chuck
c) Both (a) & (b)
d) None of these

After tightening and opening the jobs, chuck key should .......
a) Leave in the chuck
b) Lock with the chuck
c) Fasten along with the jobs
d) Immediately withdraw from the chuck


The type of bearing is .........
a) Friction bearing
b) Anti-friction bearing
c) Both (a) & (b)
d) None of these

Simple (Ordinary) nut and chuck nut have following difference -
a) Both are same
b) Chuck nut have less thickness
c) Simple nut have less thickness
d) None of these

Ball bearings are made up of metal tablets of ..........
a) None of these
b) Alloy steel
c) Copper
d) Cast iron

Honing allowance is kept —
a) 0.01 to 0.02 mm
b) 0.05 to 0.10 mm
c) 0.001 to 0.002 mm
d) None of these

Gauges wore out by rubbing on the surface, hence they are made by the following metal .......
a) Alloy steel
b) Cast steel
c) Mild steel
d) Cast iron

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