The static suction head of is the （）<br>A:distance of the suction liquid level above the line of the pump<br>B:distance the suction liquid level is below the center line of the pump<br>C:force necessary to overcome frictional losses in the pump and piping<br>D:amount in inches of mercury the total suction head is below atmospheric pressure

The static suction head of is the （）
A:distance of the suction liquid level above the line of the pump
B:distance the suction liquid level is below the center line of the pump
C:force necessary to overcome frictional losses in the pump and piping
D:amount in inches of mercury the total suction head is below atmospheric pressure

出自：海船船员证

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