FREE AND STUDY GAMES ABOUT 14 AIRCRAFT ELECTRIC

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FREE AND STUDY GAMES ABOUT 14 AIRCRAFT ELECTRIC

EXAM QUESTIONS

Actual Qs and Ans Expert-Verified Explanation

This Exam contains:

-Guarantee passing score -130 Questions and Answers -format set of multiple-choice -Expert-Verified Explanation Question 1: Electric wiring installed in aircraft without special enclosing means (open wiring) offers the advantages of ease of installation, simple maintenance, and reduced weight. When bundling open wiring, the bundles should

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be limited as to the number of cables to minimize damage from a single electrical fault.Question 2: When using the voltage drop method of checking circuit resistance, the

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input voltage must be maintained at a constant value.Question 3: Electric wire terminals for most aircraft applications must be what type?

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Ring.Question 4: How should the splices be arranged if several are to be located in an electrical wire bundle?

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Staggered along the length of the bundle.

Question 5: When a diode is checked for an open circuit or a short circuit, it should be

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disconnected from the circuit.Question 6: A battery-generator system provides direct current. On installations requiring alternating current from the battery-generator system, it is necessary to have

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an inverter.Question 7: If the (+) terminal of a voltmeter is connected to the (-) terminal of the source voltage and the (-) terminal of the meter is connected to the (+) terminal of the source voltage, the voltmeter will read

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backwards

Question 8: The commutator of a generator

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changes alternating current produced in the armature into direct current as it is taken from the armature.Question 9: The navigation lights of some aircraft consist of a single circuit controlled by a single switch which has an ON position and an OFF position, with no additional positions possible. This switch is referred to as a

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single-pole, single-throw (SPST), two-position switch.

Question 10: The inductor-type inverter output voltage is controlled by the

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dc stator field current.Question 11: What is the color and orientation of the position lights for navigation on civil airplanes?

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Left side, red; right side, green; rear aft, white.

Question 12: What type of instrument is used for measuring very high values of resistance?

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Megohmmeter.Question 13: (Refer to Figure 18.) Which of the batteries are connected together incorrectly?

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3

Question 14: The purpose of a rectifier in an electrical system is to change

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alternating current to direct current.Question 15: When selecting hardware for attaching bonding connections to an aircraft structure, which of the following should be considered?

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Mechanical strength, ease of installation, amount of current to be carried.Question 16: What kind of switch should you install in a single wire circuit that required the switch to be manually held in the ON position?

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Single-pole, single-throw (SPST), two-position normally open (NO).

Question 17: CSD generators are usually cooled by

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oil spray.Question 18: When adding a rheostat to a light circuit to control the light intensity, it should be connected in

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series with the light.Question 19: What is the maximum amount of time a circuit can be in operation and still be an intermittent duty circuit?

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Two minutes.

Question 20: One advantage of using AC electrical power in aircraft is

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greater ease in stepping the voltage up or down.

Question 21: What is the minimum bend radius for an electrical wire bundle?

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Ten times the outside diameter of the bundle.Question 22: To what depth is the mica insulation between the commutator bars of a DC generator undercut?

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Equal to the width of the mica.Question 23: An ammeter in a battery charging system is for the purpose of indicating the

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rate of current used to charge the battery.

Question 24: How is a shunt-wound DC generator connected?

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Both fields are shunted across the armature.Question 25: Which of the following copper electrical cable sizes should be selected to replace a No. 6 aluminum electrical cable?

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No. 6.Question 26: What is the advantage of a circuit breaker when compared to a fuse?

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It is resettable and reusable.Question 27: What is required when operating two aircraft AC generators in parallel?

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Frequency and voltage must both be equal.