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Officer Candidate Tests Practice Test 8: Electronics Information
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Officer Candidate Tests Practice Test 8: Electronics Information
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25 Questions

1. A direct-current supply may be obtained from an alternating-current source by means of
2. The voltage that will cause a current of 5 amperes to flow through a 20-Ohm resistance is
3. A material NOT used in the makeup of lighting wires or cables is
4. Low Potential is a trade term that refers to
5. The term that is NOT applicable in describing the construction of a microphone is
6. Operating an incandescent electric lightbulb at less than its rated voltage will result in
7.
The current in the wire at the point indicated by the arrow above is
8. When working near lead acid storage batteries, extreme care should be taken to guard against sparks, essentially to avoid
9.
The device shown above is a
10. A circular mil is a measure of electrical conductor
11. Rosin is a material generally used
12. The oscilloscope image shown above represents
13. Commutators are found on
14. The following equipment is required for a “2-line return-can” electric bell circuit:
15. The main reason for making wire stranded is
16. A polarized plug generally has
17. Excessive resistance in the primary circuit will lessen the output of the ignition coil and cause the
18. A “mil” measures a(n)
19. Which of the following sizes of electric heaters is the largest one that can be used in a 120-volt circuit protected by a 15-ampere circuit breaker?
20. Boxes and fittings intended for outdoor use should be of
21. The one of the following devices that will store an electric charge is the
22. Fuses protecting motor circuits have to be selected to permit a momentary surge of
23. Silver is a better conductor of electricity than copper; however, copper is generally used for electrical conductors. The main reason for using copper instead of silver is its
24. Receptacles in a house-lighting system are regularly connected in
25.
The reading of the voltmeter above should be

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