Multiple Choice Question (MCQ)
Question: What is the effect if the oil return from oil separator to the compressor is blocked?
A.
Suction pressure rises
B.
Discharge pressure decreases
C.
Compressor oil level falls down
D.
Compressor oil level increases
Correct Answer: Compressor oil level falls down
Explanation
In oxy acetylene welding Acetylene gas is closed first to avoid back fire.