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Question

Large transport category aircraft hydraulic systems produce around 500 P.S.I. of pressure True, False
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Both a high flash point and a high fire point are desirable for hydraulic fluids. True, False
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Block 8 HW 2

HomeWork 2

QuestionAnswer
Large transport category aircraft hydraulic systems produce around 500 P.S.I. of pressure True, False False
Both a high flash point and a high fire point are desirable for hydraulic fluids. True, False true
The only contaminants that really affect a hydraulic system are abrasive type contaminants (ex. sand, rust, and machine chips) affect a hydraulic system True, False False
If the system becomes contaminated, it must be purged immediately. True, False False
Basic hydraulic systems have one of the following: directional valve check valve, pressure relief valve, or selector valve. True. False False
A hydraulic power pack does not require a centralized hydraulic power supply or long hydraulic lines. True, False True
Pressurized reservoirs use quantity transmitters to gauge fluid quantity in the system. True, False False
The micron element is designed to prevent passage of solids greater than 1 micron in size. True, False False
Thermal lockout devices incorporated into some button indicators prevent operation of the indicator below a certain temperature. True, False True
Most modern power driven pumps are variable-delivery, compressor-control type. True, False False
All aircraft axial piston pumps have an odd number of pistons (5, 7, 9, etc. True, False True
When the pump outlet pressure of a Vickers variable delivery pump is below 2850 psi, it is held at its maximum angle in relation with the drive shaft centerline by the force of the yoke return spring. True, False True
There are two types of in-line check valves; simple-type and orifice-type. True, False True
Automatic setting fuses are designed to allow a certain volume of fluid per minute to pass through.) True, False True
An accumulator is a steel sphere divided into chambers by a rubber diaphragm. True, False True
What are the main subsystems of every hydraulic system? Pump. revivor, accumulator, heat exchanger,, and filtering system, Pump, transfer pump, reservoir. heat exchanger, and filtering system., Pump, reservoir, filtering system, condenser unit, and filtering system, Pump, carburetor, accumulator, heater exchanger, and filtering system. Pump. revivor, accumulator, heat exchanger,, and filtering system
Which states that pressure applied to any part of a confined liquid is transmitted with equal intensity to every other part? Archimedes, Pavlov's Law, Pascal's Law Pascal's Law
Which are properties that should be considered when choosing a fluid for a given hydraulic system? Viscosity, Chemical stability, Flash point, All of the above All of the above
Which of the following seals is not compatible with skydroll? Neoprene and Buna-N, Butyl rubber and Buna-N, Neoprene and ethylene-propylene, Butyl rubber and ethylene-propylene Neoprene and Buna-N
During maintenance and servicing procedures, all parts should be washed in ? Solvent, MEK Soap and water, Water only Solvent
Where are filters installed in the system? Pressure lines, Return lines, Pump case drain lines, All of the above All of the above
An open center system is one that has fluid flow? Unpressurized using a power pump., Under pressure using a power pump., And pressure in the system when the actuating mechanism is idle, And no pressure in the system when the actuating mechanism is idle And no pressure in the system when the actuating mechanism is idle
If a constant delivery pump is used in a closed system, how is the system pressure regulated? Pump's integral pressure mechanism., Pressure regulator., Relief valve. Pressure regulator
What is the advantage of an open system over a closed system? Continuous pressurization., Faster operating of the system, Gradual pressure build up., None of the above. Gradual pressure build up
What is/are the functions of a reservoir? Overflow basin. Purges air bubbles Heats fluid, A and B are correct. A and B are correct
Created by: sampizzuto
 

 



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