LATHE ACCESSORIES - Practice Mode

1) What is the cut of file used for deburring the job on lathe?

Rasp cut file Double cut file Curved cut file Single cut file

Correct Answer: Single cut file

2) Which file is used for filing surfaces at right angle on already finished surface?

Flat file Needle file Safe edge file Curved cut file

Correct Answer: Safe edge file

3) Which grade of file is used for heavy reduction of material?

Smooth file Bastard file Second cut file Dead smooth file

Correct Answer: Bastard file

Explanation:

The ratio of ultimate stress to the working stress is known as factor of safety. Its value is more than one.

Factor of Safety = Ultimate Stress/Working Stress

Working Stress = Ultimate Stress/Factor of Safety
Working Stress = 35/5 = 7 kg/mm²

4) Which is used to mark the center of a round rod?

Divider Jenny caliper Inside caliper Outside caliper

Correct Answer: Jenny caliper

Explanation:

5) Which punch is used for locating center of the hole?

Dot punch Prick punch Center punch Hollow Punch

Correct Answer: Center punch

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