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单选题
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
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更多 “单选题The static suction head of is the ()A distance of the suction liquid level above the line of the pumpB distance the suction liquid level is below the center line of the pumpC force necessary to overcome frictional losses in the pump and pipingD amount in inches of mercury the total suction head is below atmospheric pressure” 相关考题
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liquid levels of the suction and discharge
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考题
单选题A pump is said to have "negative suction head" when the pump is located ().A
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any of the above
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单选题The static suction head of is the ()A
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distance the suction liquid level is below the center line of the pumpC
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amount in inches of mercury the total suction head is below atmospheric pressure
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the same size as the pump suction nozzleC
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考题
单选题The pressure of a liquid leaving the pump can be referred to as the ().A
total headB
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单选题The major difference between the discharge and suction valves installed in most low pressure, reciprocating air compressors is that()A
one valve seats upwards, while the other seats downwardsB
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考题
单选题A simple pumping system consists of a suction branch, a pump and ().A
a priming deviceB
a discharge branchC
a filterD
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