Author Question: The operating mechanism inside most refrigeration gauges is: A) A strain gauge. B) A Bourdon ... (Read 143 times)

sammy · **on:** Jul 27, 2018

The operating mechanism inside most refrigeration gauges is:

A) A strain gauge. B) A Bourdon tube. C) A bellows. D) A diaphragm.

Question 2

An air conditioner with a thermostatic expansion valve is operating with a condenser saturation temperature of 95F and a liquid-line temperature of 92F. The factory-specified subcooling for the current operating condition is 10F. The technician should:

A) Add charge because the system is undercharged.
B) Leave the charge alone because it is cooling even better than factory specifications.
C) Recover charge because the system is overcharged.
D) Move some of the charge from the low side of the system to the high side of the system to balance the charge.