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Fitter
Fitter Set-1
Lathe Operations
37

Lathe Operations MCQ with Answers

37) If the lead screw has 6 TPI and there are 4 numbered divisions in the chasing dial, which one of the following will be the teeth worm wheel of chasing dial ?

48 teeth

24 teeth

18 teeth

12 teeth

Answer is:

24 teeth

Lathe Operations MCQ with Answers

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38) While thread cutting on a lathe by using single-point tool, the tool moves in a path called as

Epicycloid

Cycloid

Rake

Helix

Answer is:

Helix

39) Which one of the following diameters of the workpiece should be turned before cutting external threads ?

Major diameter

Core diameter

Pitch diameter

Head diameter

Answer is:

Major diameter

Explanation:

Major diameter of the workpiece should be turned before cutting external threads.

Which one of the following diameters of the workpiece should be turned before cutting external threads ?

40) When the threading tool reaches the end of the thread, the tool should be

left in the groove and reverse the workpiece

withdrawn after stopping the machine

withdrawn while the tool is taking cut

withdrawn after removing the workpiece

Answer is:

withdrawn while the tool is taking cut

41) A shaft of 50 mm has to be rough turned to Dia 42 mm in one pass. When will you check to ensure the set depth of cut is correct ?

After the tool traveled the full length

After the tool traveled half way

Just after the cut is taken at the tailstock end

After the tool has traveled a distance more than the angular shoulder

Answer is:

After the tool has traveled a distance more than the angular shoulder

Lathe Operations MCQ with Answers

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37) If the lead screw has 6 TPI and there are 4 numbered divisions in the chasing dial, which one of the following will be the teeth worm wheel of chasing dial ?

24 teeth

Lathe Operations MCQ with Answers

Related Lathe Operations MCQ with Answers

38) While thread cutting on a lathe by using single-point tool, the tool moves in a path called as

Helix

39) Which one of the following diameters of the workpiece should be turned before cutting external threads ?

Major diameter

40) When the threading tool reaches the end of the thread, the tool should be

withdrawn while the tool is taking cut

41) A shaft of 50 mm has to be rough turned to Dia 42 mm in one pass. When will you check to ensure the set depth of cut is correct ?

After the tool has traveled a distance more than the angular shoulder

Lathe Operations MCQ with Answers