Author Question: To avoid being injured by a catastrophic regulator failure, when cracking open the oxygen cylinder ... (Read 130 times)

khang · **on:** Jul 24, 2018

To avoid being injured by a catastrophic regulator failure, when cracking open the oxygen cylinder you should stand:

A) In front of the valve on the same side of the T handle.
B) Directly in front of the T handle so you can turn it off quickly.
C) Behind the valve by the T handle.
D) Behind the valve on the opposite side of the T handle.

Question 2

A biflow expansion valve:

A) Is designed to allow refrigerant flow in both directions.
B) Can be used with two different refrigerants.
C) Has both a low flow and a high flow setting.
D) Provides flow out of two ports simultaneously, eliminating the need for a refrigerant distributor.