题目内容

Whatisthefunctionofaflowcontrolvalve?

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

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Whatdeterminesthespeedofahydrauliccylinderoramotor?

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

Forarestrictvalve,reverseflowoffluidisimpossible.

A. 对
B. 错

Theactuatorspeedisdeterminedbyapressurereducingvalve.

A. 对
B. 错

弘扬工匠精神应如何看待传承与创新的关系?( )

A. 二者都不重要
B. 创新比传承更重要
C. 两者是相辅相成统一的