题目内容

When the inlet pressure of the pressure reducing valve is basically constant, if the flow rate increases, the outlet pressure ().

A. increase
B. constant
C. decrease
D. is uncertain

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When the flow through the pressure reducing valve remains unchanged and the inlet pressure increases, the outlet pressure of the pressure reducing valve ()

A. increase
B. constant
C. decrease
D. is uncertain

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If the oil inlet and outlet of the pressure reducing valve are connected reversely, what would happen? ()

A. The pilot valve is opened, the main valve port is turned down, and finally closed, so that the output flow is zero
B. When the pilot valve is closed, the main valve port is opened to the minimum, so it has no pressure reducing effect

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If the remote control port of pilot-operated pressre relief valve is connected back to the tank, what would happenr? ()

A. there is no overflow.
B. the inlet pressure is infinite;
C. the inlet pressure increases with the increase of load;
D. the inlet pressure cannot be adjusted.

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The pressure relief valve is generally installed at the outlet of _________ to stabilize the pressure and safety. ()

A. hydraulic cylinder;
B. hydraulic pump;
C. directional control valve;
D. oil tank.

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When the inlet pressure of the pressure reducing valve is basically constant, if the flow rate increases, the outlet pressure ().

A. increase B. constant C. decrease D. is uncertain

When the flow through the pressure reducing valve remains unchanged and the inlet pressure increases, the outlet pressure of the pressure reducing valve ()

If the oil inlet and outlet of the pressure reducing valve are connected reversely, what would happen? ()

If the remote control port of pilot-operated pressre relief valve is connected back to the tank, what would happenr? ()

The pressure relief valve is generally installed at the outlet of _________ to stabilize the pressure and safety. ()

A. increase
B. constant
C. decrease
D. is uncertain