Some of the energy fed into the pump will be dissipated as （） due to mechanical inefficiencies, the remainder will be converted into pressure rise and fluid velocity.

Every liquid has a pressure at which it will vaporize a...

单项选择题Every liquid has a pressure at which it will vaporize and this pressure varies with temperatureThe word “which” means （）.

A simple pumping system consists of a suction branch, a...

单项选择题A simple pumping system consists of a suction branch, a pump and （）.

A(n) （） is a device which adds to the energy of a liqui...

单项选择题A(n) （） is a device which adds to the energy of a liquid or gas causing an increase in its pressure and a movement of the fluid.