单项选择题

Which of the following terms would best describe the temperature at which a liquid boils at a given pressure?（）

A.Degree of saturation
B.Saturation temperature
C.Superheated temperature
D.Degree of superheat

点击查看答案&解析

上一题目录下一题

相关考题

单项选择题

To thoroughly pump out the bilges using a horizontally mounted centrifugal pump, the （）.

A.pump must always be primed
B.volute must impart a radial and rotary motion of the water suction side
C.connection must guide the liquid to the lantern rings
D.stuffing box should not be allowed any water leakage

单项选择题

The discharge head of a centrifugal pump will vary directly with the （）.

A.change in impeller diameter
B.square of the impeller diameter
C.cube of the impeller diameter
D.impeller efficiency for large changes in the size of the impeller

单项选择题

An increase in the heat load to a refrigeration system will cause （）.

A.the suction pressure to decrease
B.the suction temperature to increase
C.increased ice formation on the evaporator coil
D.excessive short cycling of the compressor