Lathe MCQ - Machinist(Set-1) with Answers

Lathe MCQ - Machinist(Set-1) with Answers

151) Which one of the following statements is true with reference to the tool life ?

Answer is:

Time between two successive regrinds

152) A carbide tipped tool with blue marking is used on a lathe. Which one of the following materials can be machined with this tool ?

Answer is:

Steel

153) The fingers of a fixed steady rest are set to support a lengthy workpiece held in a Four-jaw chuck. The fingers are adjusted and set when the workpiece is

Answer is:

trued at both ends and work is stationary

154) A taper for 10 mm length is produced on a workpiece by plunge cut using a form tool. The chatter marks are seen on the taper surface even though the recommended cutting speed is used and the workpiece is held rigidly. Which one of the following is a cause

Answer is:

The tool overhanging is more than required

155) A metric self-releasing taper is specified as ISO 80. The number indicates that

Answer is:

big diameter of taper is 80 mm

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