13) As the diameter of the workpiece decreases, the spindle speed (for the same cutting speed)

increases

decreases

remains the same

none of the above

Answer is:

increases

Lathe Operations MCQ - Turner (Set-1) with Answers

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Related Lathe Operations MCQ - Turner (Set-1) with Answers

14) The difference in measurement between the machined and un-machined diameter is equal to the

depth of cut

1/2 depth of cut

2 x depth of cut

none of the above

Answer is:

2 x depth of cut

15) Centre drilling should be done at

higher rpm with a slower feed

higher rpm with a higher feed

slower rpm with a higher feed

slower rpm with a slower feed

Answer is:

higher rpm with a slower feed

16) Which among the following is the cause for incorrect pitch of thread during thread cutting with single point tool ?

Incorrect selection of change gears

Lead screw worn out

Half nut worn out

Any of the above

Answer is:

Any of the above

Explanation:

Incorrect pitch of thread during thread cutting with single point tool due to
Incorrect selection of change gears
Lead screw worn out
Half nut worn out

Which among the following is the cause for incorrect pitch of thread during thread cutting with single point tool ?

17) Which one of the following is the reason for torn threads while thread cutting on lathe ?

Blunt tool

Heavy depth of cut

Insufficient side clearance

Any of the above

Answer is:

Any of the above

Explanation:

Reason for torn threads while thread cutting on lathe can be due to
Blunt tool
Heavy depth of cut
Insufficient side clearance

Which one of the following is the reason for torn threads while thread cutting on lathe ?

Lathe Operations MCQ - Turner (Set-1) with Answers

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