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9 Cards in this Set

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  • Back
The surface area of piston A is 2 square inches. Surface area of piston B is 15 square inches.
Force applied at piston A is 10lbs.
What is resulting force at piton B?
A = 5psi

B exerts = 5 x 15
= 75lbs
If piston A has surface area of 10 square inches, and moves 2 inches, how far will piston B move, with a surface area of 50 square inches?
50 / 10 = 5

2 in / 5 = 0.4 inches.
A component that transmits force into pressure is commonly called what?
A master cylinder.
What purpose does a restrictor valve serve?
To limit the speed of fluid flow in one direction.

I.e. undercarriage down, as it often free falls and could cause cavitation.
State the two types of hydraulic pump in common use?
Constant Displacement & Variable Displacement
In a Constant Displacement system, what component controls the excess pressure in times of low demand?
Pressure Regulator.
A variable displacement pump is able to do what at constant RPM?
Vary fluid output to maintain constant pressure.
The airspeed based system used to provide artificial feel on hydraulic flight controls is called what?
Q Feel.
What is the function of a priority valve?
Shuts off non-essential systems in the event of a fluid leak.