Hydraulic Valves in Fluid Power Systems

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Questions and Answers

Which type of valve determines the path through which a fluid traverses a given circuit?

  • Flow control valve
  • Directional control valve (correct)
  • Check valve
  • Pressure control valve

What is the function of a pilot operated check valve?

  • Permits free flow in one direction and prevents flow in the opposite direction (correct)
  • Allows flow in both directions only if pilot pressure is applied
  • Permits free flow in both directions
  • Prevents any flow in either direction

Which type of valve protects against overpressure and excessive actuator loads?

  • Check valve
  • Pilot operated check valve
  • Flow control valve
  • Pressure control valve (correct)

What is the function of a two-way directional control valve?

<p>Allows flow in one direction and prevents flow in the opposite direction (D)</p> Signup and view all the answers

In which type of valve does pilot pressure need to be applied for flow in the normally blocked opposite direction?

<p>Pilot operated check valve (B)</p> Signup and view all the answers

What is the function of a pilot operated check valve in a hydraulic system?

<p>Prevents reverse flow of oil (C)</p> Signup and view all the answers

Flashcards

Directional control valve function

Determines the flow path in a fluid circuit.

Pilot operated check valve

Allows one-way flow, stopping flow in reverse direction.

Pressure control valve function

Protects from too much pressure and actuator overload.

Two-way directional control valve function

Controls flow in one direction, blocks reverse flow.

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Pilot operated check valve's need

Requires pilot pressure for reverse flow.

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Hydraulic check valve purpose

Prevents oil from flowing back in a hydraulic system.

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