Fitter Trade most imp 46 mcq for upcoming exam.

1. The distance a drill moves into the work for each revolution of the spindle is called the

Feed of drill.

2. For sawing cast iron the coolant used is

dry air.

3. Which one of the following metals is used to protect underground telephone and power cables
from corrosion?

Lead.

4. The zero checking is done for (0-25 mm) depth micrometer on a

surface plate.

5. The melting point of soft solder is within the range of

183° to 255°C.

6. Which one of the following is used as a coolant while drilling plastics ?

Compressed air.

7. Which one of the following properties is the most essential for the metals in the process of casting, welding, brazing and soldering ?

Fusibility.

8. Which one of the following metals has less carbon content?

Wrought iron.

9. The composition of soft solder is lead and

tin.

10. Metals possess physical and mechanical properties. Which one of the following is a
physical property? 

Fusibility.

11. Counterboring is done for

accommodating socket head screws.

12. Which one of the following cutting fluids is used during grinding mild steel ?

Soluble oil.

13. Brass is an alloy of

Copper and zinc.

14. The cutting angle for chisel, for chipping mild steel is…..

55° .

15. The value of one thimble scale division in a metric micrometer is ...

0.01 mm.

16. Normal hardening temperature of less than 0.83% carbon plain carbon steel is ...

Above the upper critical range.

17. In heat treatment process normalising is done to ...

Refine grain structure.

18. After threading a hole by a tap, it was found that the crest of thread was not formed completely. This defect is due to ...

Hole size slighlty more than the tap drill size.

19. A nut, which can be tightened/loosened by thumb pressure and used in hack saw frame
 is called ...

Wing nut.

20. The faces of anvil and spindle of outside micrometer is made of ...

Tungsten carbide.

21. Measuring gauges require wear resistance. Which heat treatment process is required to get
 such property ?

Case hardening.

22. Which one of the following is the formula for tap drill size to form 100% thread ? 

Major dia. - 2 x depth of thread.

23. Which angle makes rake angle in a twist drill ?

Helix angle.

24. Leakage should be checked before using oxy-acetylene welding equipment. What type of
 water can be used on the acetylene connection?

Soap water.

25. In vernier bevel protractor 23 degree is divided into how many vernier divisions?

12.

26. The drilled hole is larger than the size of drill used. The reason is ...

unequal length of the cutting edges.

27. What is the specification of vernier height gauge ?

Height of the main scale.

28. Malleability is the property of metals which helps to manufacture ...

thin sheets.

29. Two operations are done in oxy-acetylene gas cutting, they are preheating and cutting.Which flame should be set for preheating before cutting ?

Neutral flame.

30. The function of flux during soldering is...

to remove oxides from the soldering surface.

31. The eye hole of the hammer is oval and tapers towards the centre because ...

to wedge the handle.

32. Which is the possible cause when a twist drill produces a rough hole on the job ?

Feed rate is too high.

33. The process of inducing toughness and reducing brittleness by heat treatment is called...

Tempering.

34. The process of heating the high carbon steel above upper critical temperature followed by a
slow cooling is termed as ...

annealing.

35. What is the correct tap drill for tapping M16 tap?

14.16 mm.

36. 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

tear the metal along the centre line of the rivets.

37. Best conductor of heat and electricity is ...

Copper.

38. Annealing is the process of heating the steel above upper critical temperature and cool it ...

covered with ash or sand.

39. Calculate the drill size for 20 mm reamed hole using the formula, undersize of hole = 0.3 mm and oversize for drill = 0.05 mm.

19.65 mm.

40. It is possible to measure the angle of a component to an accuracy of one minute with...

Sine bar with slip gauges.

41 . Which machine reamer has guides on front and rear sides?

Jig reamer.

42. In a vernier micrometer, vernier scale is graduated on

barrel.

43. The purpose of heat treatment is..

to produce certain required properties

44. Calculate the tap drill size in mm to tap M12 x 1 thread...

10.8 mm.

45. In which method of manual bending of sheet metal the folding line is to coincide with edge
 of bending tool?

Hatched stake method.

46. What coolant is used for drilling the aluminium job?

Kerosene.