NCVT ALL INDIA TRADE TEST FITTER PAPER FEB 2018 SEM 3 PART 1

1) In which of the following lathe, so many tools can work together? 

Speed Lathe

Turret lathe

Bench lathe

None of these

Correct answer

None of these

2) Which of the following lathe is appropriate for mass production? 

a) Turret lathe

b) Capstan Lathe

c) Both (a) & (b)

d) Bench lathe

Correct answer

c) Both (a) & (b)

3) Tumbler gear is used for the following work - 

To change the velocity of the spindle

To change the direction of feed

To change the direction of the rotation of the lathe

To accelerate the carriage from the lead screw

Correct answer

To change the direction of feed

4) Due to which reason, drill breaks during center drilling? 

By giving too much feed

By reducing speed and feed

By trapping of chips

None of these

Correct answer

By giving too much feed

5) Which material is used to make the gauge of good quality?

Vanadium steel

Cast iron

Mild steel

None of these

Correct answer

Vanadium steel

6) The clearance between the mating parts is measured by which of the following gauge? 

By caliper gauge

By dial gauge

By feeler gauge

By plug gauge

Correct answer

By feeler gauge

7) Which of the following method is used for putting abrasive on lap? 

Lapping

Charging

Rubbing

Fixing

Correct answer

Charging

8) As compare to honing,………………………… metal is removed in lapping. 

Less

More

Very less

None of these

Correct answer

Less

9) The surface finish of a surface is measured in ………………… 

Foot

Meter

Micron

Centimeter

Correct answer

Micron

10) In the honing process, which of the following is used along with simple abrasive and bonding material for making hone? 

Sulphur

Resin

Wax

All of these

Correct answer

All of these

11) Nitride made the metals - 

Corrosion resistant

Wear resistant

Both (a) & (b)

None of these

Correct answer

Both (a) & (b)

12) Which of the following structure is formed by the rapid cooling of austenite structure of steel? 

Pearlite

Cementite

Martensite

None of these

Correct answer

Martensite

13) TPI is the unit to measure the following — 

Length of bolt

Diameter of nut

Pitch of threads of the nut

Thickness of wire

Correct answer

Pitch of threads of the nut

14) The split bearing is also known as — 

Plain bearing

Pedestal bearing

Pivot bearing

Roller bearing

Correct answer

Pedestal bearing

15) Jobs with the asymmetric surface cannot hold in the center by which of the following chuck? 

By four jaw chuck

By three jaw chuck

Both (a) & (b)

None of these

Correct answer

By three jaw chuck

16) After tightening and opening the jobs, chuck key should —

Lock with the chuck

Leave in the chuck

Immediately withdraw from the chuck

Fasten along with the jobs

Correct answer

Immediately withdraw from the chuck

17) The type of bearing is 

Friction bearing

Anti-friction bearing

Both (a) & (b)

None of these

Correct answer

Both (a) & (b)

18) Simple (Ordinary) nut and chuck nut have the following difference - 

Both are the same

Chuck nut have less thickness

Simple nut have less thickness

None of these

Correct answer

Chuck nut have less thickness

19) Ball bearings are made up of metal tablets of ............... 

Alloy steel

Copper

Cast iron

None of these

Correct answer

Alloy steel

20) Honing allowance is kept 

0.01 to 0.02 mm

0.05 to 0.10 mm

0.001 to 0.002 mm

None of these

Correct answer

0.01 to 0.02 mm

21) Gauges wore out by rubbing on the surface, hence they are made by the following metal — 

Alloy steel

Cast steel

Mild steel

Cast iron

Correct answer

Alloy steel

22) The length of the sine bar is given by the following — 

By the length of the sine bar

By the distance between the centers of rollers

By the distance between the end point of both rollers

None of the above

Correct answer

By the distance between the centers of rollers

23) For supporting the pipe-shaped hollow job, following centroid is used - 

Inverse center

Pipe center

Half center

Revolving center

Correct answer

Pipe center

24) The full name of SWG is — 

Straight Wire Gauge

Standard Wire Gauge

Standard Width Gauge

Standard Wire Gear

Correct answer

Standard Wire Gauge

25) Which of the following is the characteristic of bearing? 

Minimum friction

Vibration free base

The ability to keep the shaft on its place

All of these

Correct answer

All of these