Multiple Choice Question (MCQ)
Question: What is the depth of 0.5 inch BSW 13TPI single start thread?
A.
0.025"
B.
0.038"
C.
0.049"
D.
0.082"
Correct Answer: 0.049"
Explanation
Helmet is a type of safety equipment is worn while checking the welding joint of a overhead crane frame.