Sciences
7 QUESTIONS
Q1. Full name of OPSO
A) Over pressure set off
B) Over pressure seal off
C) Over pressure shut off
D) Over pressure switch off
Q2. Full Name Of UPSO
A) Under pressure seal off
B) Under pressure set off
C) Under pressure shut off
D) Under pressure switch off
Q3. Which class of G. I. pipe is used in PNG connection?
A) A class
B) B class
C) C class
D) None of above
