單項(xiàng)選擇題

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

你可能感興趣的試題

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

單項(xiàng)選擇題

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