超星 - Flow control valves - 查题吧

单选题

Whatisthefunctionofaflowcontrolvalve?

Adjustingoilflowrate
B. Changingoilflowdirection
C. bothA.andB.
D. noneoftheabove

单选题

Whatdeterminesthespeedofahydrauliccylinderoramotor?

A. Systempressure
B. Weightoftheload
C. Directionalvalvecenterposition
D. Amountofoilflow

判断题

Forarestrictvalve,reverseflowoffluidisimpossible.

A. 对
B. 错

判断题

Theactuatorspeedisdeterminedbyapressurereducingvalve.

A. 对
B. 错

判断题

Forarestrictvalve,inputpressureismorethanoutputpressure.

A. 对
B. 错

判断题

Theactuatorspeedcanbereducedbyarestrictvalve.

A. 对
B. 错

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