Lathe MCQ - Machinist(Set-1) with Answers

Lathe MCQ - Machinist(Set-1) with Answers

136) 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 ?

Answer is:

24 teeth

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

Answer is:

Helix

138) To enable a nut to fit properly on a bolt of square threads, the width of the internal square threading tool should be

Answer is:

slightly more than the half pitch

139) For cutting acme threads, the threading tool should be ground to an included angle of

Answer is:

29 Degree

For cutting acme threads, the threading tool should be ground to an included angle of

140) The tip of a cemented carbide tool is joined on the shank by

Answer is:

brazing

The tip of a cemented carbide tool is joined on the shank by

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