Which refrigeration hose end has a Schrader valve core depressor?
A) The angled end B) The straight end
C) Both ends have a core depressor. D) Neither end has a core depressor.
Question 2
What controls when manual backseating valves open and close?
A) They open when they are backseat cracked and close when they are backseated.
B) They open when hoses with depressors are connected and disconnected to them.
C) They open and close by a wireless Bluetooth signal.
D) They open every time the unit starts up and close immediately upon shutdown.
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Scientists with ice core