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| 1 | The smaller the diameter of a wire, the less current it can carry. |
 | A) | True |
| B) | False |
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| 2 | For a given length of wire, the resistance, R, increases as its diameter and cross-sectional area decrease. |
| A) | True |
| B) | False |
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| 3 | An insulator is any material that resists or prevents the flow of electric charge, such as electrons. |
| A) | True |
| B) | False |
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| 4 | Examples of conductors include air, paper, plastics, rubber, mica, and glass, to name a few. |
| A) | True |
| B) | False |
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| 5 | No. 000 gage wire has a smaller cross-sectional area than No. 1 gage wire. |
| A) | True |
| B) | False |
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| 6 | In typical applications, hook-up wire for electronic circuits in the order of milliamperes is generally about No. 22. |
| A) | True |
| B) | False |
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| 7 | Most wire conductors are copper. |
| A) | True |
| B) | False |
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| 8 | The RCA-type plug is universally used for shielded cables with audio equipment. |
| A) | True |
| B) | False |
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| 9 | Switches can have more than two poles and two throws. |
| A) | True |
| B) | False |
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| 10 | An atom, or group of atoms that has a net electric charge, either positive or negative, resulting from a loss or gain of electrons is a(n) . |
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| 11 | Liquids that are good conductors because of ionization are called . |
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| 12 | Continuity of wires and printed wiring can be tested by using a(n) . |
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| 13 | The advantage of a circuit is that it can be rest once the bimetallic strip cools down and the short circuit has been removed. |
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| 14 | The of a wire conductor is inversely proportional to its cross-sectional area. |
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| 15 | Temperature coefficient states how much the changes for a change in temperature. |
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| 16 | A value of ά means less resistance at higher temperatures. |
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| 17 | Liquids that are good conductors because of are called electrolytes. |
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| 18 | What is the rating that lists the resistance of a metal having the standard wire size of a 1-ft length with a cross-sectional area of 1 cmil? |
| A) | power |
| B) | specific gravity |
| C) | specific resistance |
| D) | tolerance |
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| 19 | A metal that does not change resistance when the temperature increases or decreases |
| A) | has a positive temperature coefficient |
| B) | has a negative temperature coefficient |
| C) | should never be used to make precision wire-woundresistors |
| D) | has a zero temperature coefficient |
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| 20 | What is a result of breakdown in the insulator because of a high potential difference that ruptures the dielectric? |
| A) | avalanche breakdown |
| B) | surge current |
| C) | spark discharge |
| D) | corona effect |
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| 21 | What prevents a wire conductor from coming into contact with any nearby conductor? |
| A) | cable ties |
| B) | wire insulation |
| C) | conductors |
| D) | ceramic posts |
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| 22 | When two or more conductors are formed in a common covering, it is referred to as a |
| A) | cable |
| B) | coax |
| C) | run |
| D) | strand |
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| 23 | Which of the following cable connectors is universally used in cable television? |
| A) | RCA-type |
| B) | phone plug |
| C) | F connector |
| D) | multiple pin |
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| 24 | What size soldering iron should be used when soldering or desoldering? |
| A) | 5 W |
| B) | 25 W |
| C) | 75 W |
| D) | 100 W |
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| 25 | A device constructed of a thin bimetallic strip that expands with heat and in turn opens the circuit is called a |
| A) | fuse |
| B) | switch |
| C) | circuit breaker |
| D) | thermistor |