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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. When working on live 600-volt equipment where rubber gloves might be damaged, an electrician should
2. Boxes and fittings intended for outdoor use should be of
3. When the electric refrigerator in a certain household kitchen starts up, the kitchen light at first dims considerably and then it increases somewhat in brightness while the refrigerator motor is running; the light finally returns to full brightness when the refrigerator shuts off. This behavior of the light shows that most likely the
4. The most likely cause of a burned-out fuse in the primary circuit of a transformer in a rectifier is
5. Commutators are found on
6. Receptacles in a house-lighting system are regularly connected in
7. The electronic symbol shown below usually represents a(n)
8. An alternator is a(n)
9. The instrument by which electric power may be measured is a(n)
10. If a live conductor is contacted accidentally, the severity of the electrical shock is determined primarily by
11. The letters RHW when applied to electrical wire indicate the wire
12. The following equipment is required for a “2-line return-can” electric bell circuit:
13. The electrical contacts in the tuner of a television set are usually plated with silver. Silver is used to
14. Operating an incandescent electric lightbulb at less than its rated voltage will result in
15. The purpose of having a rheostat in the field circuit of a DC shunt motor is to
16. Rosin is a material generally used
17. If a condenser is connected across the make-and-break contact of an ordinary electric bell, the effect will be to
18. Metal cabinets used for lighting circuits are grounded to
19.
The fitting shown above is used in electrical construction to
20. The primary coil of a power transformer has 100 turns, and the secondary coil has 50 turns. The voltage across the secondary will be
21. The main reason for making wire stranded is
22. When working near lead acid storage batteries, extreme care should be taken to guard against sparks, essentially to avoid
23. A circular mil is a measure of electrical conductor
24.
Which of the above is the standard coupling for rigid electrical conduit?
25. Neutral wire can be quickly recognized by the

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