题目内容

In the inlet throttle control circuit, the speed stiffness is related to the throttle valve flow area A and the load FL, but has nothing to do with the pump outlet pressure pp ( )

A. 对
B. 错

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Moist air is a mixture of dry air and water vapor ( )

A. 对
B. 错

During the isothermal process, the internal energy of the gas remains unchanged because there is no heat exchange between the gas and the outside world ( )

A. 对
B. 错

The performance of pneumatic cylinder on no-load requires that the pneumatic cylinder should run smoothly without creeping under certain limited pressure ( )

A. 对
B. 错

Volumetric speed regulation of variable displacemetn pump- fixed displacement motor belongs to constant torque speed regulation ( )

A. 对
B. 错

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