單項選擇題

Increasing the speed of a centrifugal pump will result in an increase in its capacity Another means of increasing the capacity of a centrifugal pump is to increase the （）.

A.diameter of the discharge piping, with all other factors remaining the same
B.diameter of the suction piping, with all other factors remaining the same
C.width of the impeller only
D.diameter of the impeller

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單項選擇題

If the discharge valves on a refrigeration compressor are leaking badly, the compressor should （）.

A.run continuously
B.not start
C.have high discharge pressure
D.short cycle on the high pressure switch

單項選擇題

Which of the following terms could be applied to the simple definition the energy of motion?（）

A.Electrical energy
B.Thermal energy
C.Potential energy
D.Kinetic energy

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Increasing the speed of a centrifugal pump will result in an increase in its capacity Another means of increasing the capacity of a centrifugal pump is to increase the （）.

你可能感興趣的試題

If the discharge valves on a refrigeration compressor are leaking badly, the compressor should （）.

Which of the following terms could be applied to the simple definition the energy of motion?（）

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