The theoretical flow rate of a hydraulic pump is related to its structural size and rotational speed, and has nothing to do with working pressure ()
查看答案
Check valve, relief valve, throttle valve can all be used as back pressure valve ()
A. 对
B. 错
The outlet throttle speed control circuit with speed-regulating valve has only throttle loss and no relief loss ()
A. 对
B. 错
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
Moist air is a mixture of dry air and water vapor ( )
A. 对
B. 错