Author Question: What effect do non-condensable gases have on a refrigeration system? A) They increase evaporator ... (Read 27 times)

elizabeth18 · **on:** Jul 26, 2018

What effect do non-condensable gases have on a refrigeration system?

A) They increase evaporator pressure and decrease compression ratio.
B) They create bubbles in the liquid refrigerant stream leaving the compressor.
C) They increase condenser pressure and compression ratio.
D) They decrease the compression ratio and condenser pressure.

Question 2

A system that controls loads by opening and closing electrically operated mechanical switches is described as:

A) A relay logic. B) Solid state logic. C) Pneumatic logic. D) Modulating logic.