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

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

71) When cutting ISO metric threads of coarse pitch, the compound rest should be swiveled to

Answer is:

30 Degree

72) 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

73) 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

74) 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

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

Answer is:

big diameter of taper is 80 mm