Author Question: The advantage of ball valves over other types of manual refrigeration valves is that they: A) ... (Read 197 times)

TFauchery · **on:** Jul 24, 2018

The advantage of ball valves over other types of manual refrigeration valves is that they:

A) Have integral ports that allow pressure drop measurements.
B) Normally require special tools to open, preventing tampering by untrained personnel.
C) Have venturi jets that help offset the pressure loss through the valve.
D) Offer less resistance to flow.

Question 2

What are the two basic types of relief valves used on refrigeration systems?

A) An automatic relief valve and a one-time relief valve
B) Electrically operated and pneumatically operated
C) A high-side pressure relief valve and a low-side pressure relief valve
D) System mounted and remote mounted