题目内容

Static liquid only bears normal force, not shearing force and pulling force ( )

A. 对
B. 错

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The sequence valve can control the outlet pressure of the valve to be stable ( )

A. 对
B. 错

In the double-pump oil supply circuit, when no load, the system is only supplied by a small pump alone ( )

A. 对
B. 错

The ideal liquid is an imaginary liquid that is neither viscous nor compressible. ( )

A. 对
B. 错

The relief valve is normally open and the pressure reducing valve is normally closed. ( )

A. 对
B. 错

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