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29 Cards in this Set
- Front
- Back
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The maximum cabin differencial pressure is
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9 PSI
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During a normal pressurized climb after takeoff
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cabin pressure decreases more slowly then atmospheric pressure
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the term pressure cabin means the aeroplane
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has the ability to maintain cabin pressure higher then ambient pressure
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In a manually operated system, the cabin altitude rate of change is normally controlled by:
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a rate of change selector
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the cabin pressurization systems have two modes of operation which are
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the isobaric mode & the constant pressure differential mode
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As an aircraft climbs what system will be used during the climb
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the isobaric mode
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the purpose of stringers, used in fuselage construction is to
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assist the skin withstand longitudinal compressive loads
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The security components of a hydrolic system are
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filters,pressurerelief valves,by-passes,and the fire shut-off valve
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The hydrolic device similar to an electroic diode is a
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check valve
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the main reasond for using pressurized hydraulic reservoirs on jet transport AC is
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to assure that an adequate supply of fluid free from foaming always is present at the pump inlet
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the purpose of pressurizing some hydrolic reservoirs is to
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provide positive feed to the main pump
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in some AC there is a protection device to prevent accidental exrection of the wheels which is
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a latch located in the landing gear lever
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VLe is
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Max speed landing gear extended
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VLo is
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Max speed landing gear can by operated
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In a HP brake hydraulic system
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a seperate handbrake system is always fitted
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Elevators are used to provide rotation about the
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lateral axis
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differential ailerons work by
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equalising the drag on up and down going wings
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when are outboard ailerons used
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when flaps are extended
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what is the purpose of the cabin pressurization outflow valves
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to maximize the cabin pressure differential up to cruising altitude
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what is the function of the heat exchanger in a boot strap system
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cool the bleed air then cool the compressed outlet air
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Pneumatic de-icing system should be operated
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when there is approx. 1.5cm of ice on the leading edge
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why do the de-icing boots inflate alternately
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keeps the disturbance to the airflow to a minimum
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reliable info, whether to use the nti icing is
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reported temp while on the ground & ram air whilst airborne
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fuel is pressurized to prevent
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vapour lock
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when checking fuel for water contamination water will be
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at the botom of the strainer as it is heavier
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on jet AC fuel heaters are located
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at the engines
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the function of a feed box is
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to increase the fuel level at the boost pump location
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the pressure normally produced by the fuel boost pumps is
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20-50PSI
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the high pressure fuel pumps are driven by
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the engine
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