CRJ 900 ELECTRICAL EXAM WITH CORRECT ANSWERS

CRJ 900 ELECTRICAL EXAM WITH |\ |\ |\ |\ |\




CORRECT ANSWERS |\




signed off to checkride? initial operating experience! what
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is it? - CORRECT ANSWERS ✔✔generally around 25 hours
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flying with a line check airmen.
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-real flights with real passengers
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operating experience |\




-changing aircraft seats or coming back from leave |\ |\ |\ |\ |\ |\ |\




CRJ-700 electrics- Types of electric power - CORRECT
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ANSWERS ✔✔AC system |\ |\




DC system |\




Emergency AC and DC system |\ |\ |\ |\




What are the Sources of electrical power? - CORRECT
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ANSWERS ✔✔Engines (if its running we are getting |\ |\ |\ |\ |\ |\ |\ |\



power)>generators>IDG


Integrated Drive Generators |\ |\




APU

, Air Driven Generator or RAT- emergency ONLY
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Batteries- emergency |\




External power AC |\ |\




describe what Alternating Current (AC) is - CORRECT
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ANSWERS ✔✔Direction of flow or polarity of electricity |\ |\ |\ |\ |\ |\ |\ |\



charges
Home: 60 Hertz |\ |\




Aircraft: 400 Hertz, 3 phase |\ |\ |\ |\




without 3 phase- would be like on off on off
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describe what Direct Current (DC) is - CORRECT ANSWERS
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✔✔Constant flow of electricity
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no measure of hertz
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best for more delicate equipment and electronics tends to
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be lower voltage.
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from positive to negative in a closed current
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hose example- finger is volts
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water rate is amp flow |\ |\ |\ |\




CRJ AC POWER - CORRECT ANSWERS ✔✔115 Volts
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