Lathe MCQ - Machinist(Set-1) with Answers

Lathe MCQ - Machinist(Set-1) with Answers

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

Answer is:

withdrawn while the tool is taking cut

147) The amount of tailstock offset for taper turning is done by the set screws provided. The procedure to be followed is :

Answer is:

Loosen the screws opposite to the direction of movement and tighten the other screw

148) When rough turning a workpiece with a carbide tool long curly chips are formed. Which one of the following is the right way of getting rid of this kind of chips ?

Answer is:

Provide chip breaker on the tool

149) You want to fix an irregularly shaped workpiece on a lathe, which one of the following accessories is the most appropriate ?

Answer is:

Face plate

Explanation:

When fixing irregular shaped work-peice on lathe, face plate in the most suitable accessori.

You want to fix an irregularly shaped workpiece on a lathe, which one of the following accessories is the most appropriate ?

150) A brass shaft is to be turned to a surface roughness Ra = 0.8, with high cutting speed. Which one of the following cutting tool material is most suitable ?

Answer is:

Cemented carbide

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