• 单选题 Which of the following terms is used to identify the pressure of the liquid entering a pump?（）

  标签：船舶辅助机械 2021-12-31 18:36

• 单选题 In an oil cooler circulated by sea water, the oil is at a larger pressure the result being that any leak in the cooler will mean a loss of （）.

  标签：船舶辅助机械 2021-12-23 12:30

• 单选题 The crane is usually mounted on a pedestal to offer adequate （） to the operator.

  标签：船舶辅助机械 2021-08-19 12:26

• 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 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

免费的网站请分享给朋友吧