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Quiz: 6 Questions To See How Much You Know About Aircraft Electrical Systems

Boldmethod

It's time to test yourself!


  1. 1) Which component allows electricity to only flow in one direction?

    A diode only allows electricity to flow in one direction.

    A diode only allows electricity to flow in one direction.

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  2. 2) Aircraft alternators produce AC power. Most aircraft components require DC power to operate. Which component converts AC to DC power?

    Because you need a steady flow of electricity, a transformer rectifier unit turns AC (alternating current) power into DC (direct current) power.

    Because you need a steady flow of electricity, a transformer rectifier unit turns AC (alternating current) power into DC (direct current) power.

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  3. 3) When you start a piston airplane, a bendix drive engages the flywheel. Which electrical component provides power to the bendix?

    A solenoid is simply a coil of wires. When electricity is passed through, it creates a magnetic force. When the solenoid is 'alive', it forces the bendix drive outward toward the flywheel.

    A solenoid is simply a coil of wires. When electricity is passed through, it creates a magnetic force. When the solenoid is 'alive', it forces the bendix drive outward toward the flywheel.

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  4. 4) An electrical short is causing an abnormally high amount of electricity to flow to your pitot tube (pitot heat). What device is designed to stop the flow of electricity to this component?

    If there is a surge of electricity traveling to a component, it can cause damage or fire. A circuit breaker is designed to 'pop' when this happens, which isolates the component from the rest of the electrical system.

    If there is a surge of electricity traveling to a component, it can cause damage or fire. A circuit breaker is designed to 'pop' when this happens, which isolates the component from the rest of the electrical system.

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  5. 5) Not every screen, light and motor in your aircraft uses the same amount of electricity (current). What element is used to adjust the amount of current going to each component?

    Resistors resist, or filter out the amount of current flowing to a component.

    Resistors resist, or filter out the amount of current flowing to a component.

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  6. 6) You're on an approach in heavy rain, and you decide to turn on your windshield wipers. What component primarily determines the length of the interval that the wind shield wipers are activated?

    A capacitor stores electrical energy and releases it at a specified voltage. Components such as windshield wipers operate using a capacitor. A charge is built up, and when the voltage value is met, it discharges, causing the wipers to operate. It eventually returns to its original position, waiting for the next discharge.

    A capacitor stores electrical energy and releases it at a specified voltage. Components such as windshield wipers operate using a capacitor. A charge is built up, and when the voltage value is met, it discharges, causing the wipers to operate. It eventually returns to its original position, waiting for the next discharge.

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Well, that was a tough quiz...

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Not bad, you have a lot of these electrical components down.

You scored % Nice work.

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Nailed it!

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Corey Komarec

Corey is a commercial aviation student, CFII and commercial pilot with multi-engine and instrument ratings at the University of North Dakota. Corey has been flying since he was 16, and he's pursuing a career in the airlines. You can reach him at corey@boldmethod.com.

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