NCVT ALL INDIA TRADE TEST FITTER TRADE PAPER FEB 2018 SEM 3 PART 2

1) Which of the following washer is used where the loosening of bolts due to vibrations or shocks are more likely to happen? 

Plain washer

Spring washer

Fiber washer

Tap washer

Correct answer

Spring washer

2) Woodruff key has the following type of shape ............. 

Rectangular

Square

The shape of the sector of the circle

Round and Taper

Correct answer

The shape of the sector of the circle

3) …………………….. is used for the picking of steel. 

Spirit

Carbon Tetra Chloride

Troicloroethylene

Dilute sulfuric acid

Correct answer

Dilute sulfuric acid

4) In the lapping process, aluminum oxide abrasive is used ........ 

For hard metals

For non-ferrous metals

For hard steel

None of these

Correct answer

For non-ferrous metals

5) Among the following, the reference surface while marking on any job is ................ 

Surface gauge

Workpiece

The surface of the marking table 

None of these

Correct answer

The surface of the marking table 

6) The taper of the workpiece kept on the lathe machine can be checked by following .............. 

Steel rule and micrometer

Sine bar and slip gauge

Universal bevel protector

Taper plug gauge or taper ring gauge

Correct answer

Taper plug gauge or taper ring gauge

7) Which taper is used in the spindle of tailstock? 

Morse taper

Browne and Sharpe taper

Jarno taper

None of these

Correct answer

Jarno taper

8) The faceplate is made up of which of the following metal? 

Cast iron

Wrought iron

High carbon steel

None of these

Correct answer

Cast iron

9) For using taper turning attachment, the setting angle is calculated by the following formula — 

tanθ = 2/D-d

tanθ = D-d/l

tanθ = 2d/D-d

tanθ = D-d/2l

Correct answer

tanθ = D-d/2l

10) If the number size in wire gauge increases then the thickness of the wire will get ............... 

Less

More

Neither less nor more

None of these

Correct answer

Less

11) The nut is a ............ 

Temporary fasteners

Semi-permanent fastener

Permanent fasteners

None of these

Correct answer

Temporary fasteners

12) Which of the following instrument is used to check the hills & valleys for the surface of the job? 

By dial gauge

By profile meter

By barometer

By ammeter

Correct answer

By profile meter

13) The place where the bearing is fit is known as ............... 

Shell-bearing

Housing

Ball bearing

Friction

Correct answer

Housing

14) Lead screw of the lathe is used for .............. 

Thread cutting

Taper turning

Step turning

Boring

Correct answer

Thread cutting

15) Which of the following protects the long job from bending during turning? 

Mandrel

Steady rest

Revolving center

Dog chuck

Correct answer

Steady rest

16) The method of cutting taper by tailstock is known as ........... 

Offset

Long nose tool

Copying

Taper turning

Correct answer

Offset

17) Jobs are placed in ash or ………….. for annealing. 

Limestone

Coke

Pig iron

All of these

Correct answer

Limestone

18) The included angle of the acme thread is ............. 

29°

60°

47.5°

30°

Correct answer

29°

19) Thread snap gauge is used to check ................ 

External thread

External diameter

Internal thread

Internal diameter

Correct answer

External thread

20) For correctly fixing the threading tool,………………… is used. 

Tool attached to the face of the job

Center gauge

Threaded gauge

Try square

Correct answer

Center gauge

21) Which chuck has reversible jaws? 

Headstock

Tailstock

Collet chuck

Four jaw chuck

Correct answer

Four jaw chuck

22) …………………………… is done for removing more brittleness of chisel. 

Tempering

Carburizing

Annealing

Hardening

Correct answer

Tempering

23) The percentage of carbon in grey cast iron is ............. 

More than 6.67 %

More than 2.1 %

Less than 2.1 %

None of these

Correct answer

More than 6.67 %

24) The diameter of NOT GO end is kept slightly ……………… than the actual size. 

Bigger

Smaller

Equal

None of these

Correct answer

Bigger

25) What does 16 represent in M16 x 55? 

a) Length of shank

b) Diameter of threads

c) Both (a) & (b)

d) None of these

Correct answer

Diameter of threads