Author Question: What controls when Schrader valves open and close? A) They open when hoses with depressors are ... (Read 210 times)

student77 · **on:** Jul 24, 2018

What controls when Schrader valves open and close?

A) They open when hoses with depressors are connected to them.
B) They open and close by a wireless Bluetooth signal.
C) They open every time the unit starts up and close immediately upon shutdown.
D) They open when they are backseat cracked and close when they are backseated.

Question 2

The required system capacity in tons can be determined by dividing:

A) 100 BTU/min by the system's refrigeration effect.
B) 200 BTU/min by the system's refrigeration effect.
C) 300 BTU/min by the system's refrigeration effect.
D) 600 BTU/min by the system's refrigeration effect.