44) State the direction of rotation of job and lead screw while cutting left hand thread viewing from tailstock end. (CW = clockwise; ACW = anticlockwise).
Answer is:
Job rotates ACW and lead screw rotates CW
Related Lathe MCQ - Machinist(Set-1) with Answers
Answer is:
Use negative top rake
Answer is:
Ensure that the barrel advances with clockwise movement of hand wheel
Explanation:
Advantage of tailstock spindle having left handed threads is that it ensure that the barrel advances with clockwise movement of hand wheel.
Answer is:
accommodating socket head screws
Explanation:
Counter boring is the operation of enlarging the end of a hole using a tool called counterbore. Counter boring is done for accommodating socket head screws.
Answer is:
from centre to the periphery of the job
Explanation:
Fine facing is done by feeding the tool from centre to the periphery of the job