Author Question: After hardening, tempering should be done: A) Whenever time permits B) Within 24 hours C) ... (Read 30 times)

itsmyluck · **on:** Jul 26, 2018

After hardening, tempering should be done:

A) Whenever time permits B) Within 24 hours
C) Immediately D) If one feels it is needed for a particular job

Question 2

On a 50 division inch vernier height gage, the beam scale reads 7.500 and the vernier is coincident at the first mark past the zero index. The total reading would be:

A) 7.500 B) 7.499 C) 7.501 D) 7.255