• 单选题 Which of the listed conditions can lead to cavitation气穴in a centrifugal pump?（）

  标签：船舶辅助机械 2021-08-08 06:09

• 单选题 If an anchor windlass has been idle for some time, you should （）.

  标签：船舶辅助机械 2021-08-07 10:05

• 单选题 Some pumps use packing as sealing glandThe gland should be （）.

  标签：船舶辅助机械 2021-08-07 10:05

• 单选题 The fresh water generator produces fresh water （）.

  标签：船舶辅助机械 2021-07-31 10:26

• 单选题 The percentage of impurities in a specific fuel oil sample is determined by （）.

  标签：船舶辅助机械 2021-07-23 06:47

• 单选题 When installing a hydraulic hose, which of the following precautions should be taken?（）

  标签：船舶辅助机械 2021-07-23 01:41

• 单选题 The output volume of a positive fixed displacement pump can be changed only by （）.

  标签：船舶辅助机械 2021-07-22 04:33

• 单选题 A refrigerant gives up heat when it goes through （）.

  标签：船舶辅助机械 2021-07-20 20:44

• 单选题 Which of the following statements concerning energy is correct?（）

  标签：船舶辅助机械 2021-07-20 04:40

• 单选题 Thermal energy in transition is also referred to as （）.

  标签：船舶辅助机械 2021-07-20 04:37

• 单选题 Machinery operating features are designed to help conserve energy.Which of the following results will not contribute to energy conservation?（）

  标签：船舶辅助机械 2021-07-20 04:37

• 单选题 A centrifugal pump produces flow with a resulting discharge head by energy conversionIt is typical for the energy conversion to follow the order of （）.

  标签：船舶辅助机械 2021-07-20 04:37

• 单选题 Which of the following centrifugal pump components converts the liquid kinetic energy of velocity to the potential energy of pressure?（）

  标签：船舶辅助机械 2021-07-20 04:35

• 单选题 While flowing through the volute in a centrifugal pump, part of the （） energy of the liquid is converted to （） energy.

  标签：船舶辅助机械 2021-07-20 04:35

• 单选题 Mechanical energy in transition is referred to as （）.

  标签：船舶辅助机械 2021-07-20 04:34

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