<var id="67r27"><th id="67r27"></th></var>

單項(xiàng)選擇題

The sum of the sensible heat and the latent heat of any substance is known as （）.

A.total heat
B.residual heat
C.specific heat
D.superheat

你可能感興趣的試題

單項(xiàng)選擇題

With respect to centrifugal pump impellers, which of the following descriptions represents the correct centrifugal pump classification? （）

A.Single stage or multistage
B.High pressure or low pressure
C.Open or close coupled
D.Horizontal or vertical

單項(xiàng)選擇題

If a radial piston hydraulic pump fails to deliver rated fluid volume, the cause can be （）.

A.contaminated fluid
B.pitted thrust rings
C.worn pintle bearings
D.obstructed suctions passage