If the head pressure is too high,（）<br>A:the relief valve should open before the high-pressure cutout<br>B:the relief valve should open and let excess refrigerant go to receiver<br>C:the high-pressure cutout switch should operate before the relief valve opens<br>D:close in on the suction valve

If the head pressure is too high,（）
A:the relief valve should open before the high-pressure cutout
B:the relief valve should open and let excess refrigerant go to receiver
C:the high-pressure cutout switch should operate before the relief valve opens
D:close in on the suction valve

出自：海船船员证

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