Multiple Choice
Identify the
choice that best completes the statement or answers the question.
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1.
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Each completed wave form of a sine wave is called a(n) ____.
a. | frequency | c. | cycle | b. | hertz | d. | farad |
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2.
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In a sine wave, the number of complete cycles that occur in one second is called
a ____.
a. | frequency | c. | cycle | b. | hertz | d. | farad |
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3.
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Peak-to-peak, peak, RMS, and average are measurements of ____ associated with
sine waves.
a. | wattage and resistance | c. | voltage and resistance | b. | amperage and
resistance | d. | voltage and
amperage |
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4.
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The ____ value is measured from the maximum value in the positive direction to
the maximum value in the negative direction.
a. | average | c. | peak-to-peak | b. | peak | d. | RMS |
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5.
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The ____ is measured from zero to the highest value obtained in either the
positive or negative direction.
a. | average | c. | peak-to-peak | b. | peak | d. | RMS |
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6.
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The AC voltage that will produce the same amount of power as a like value of DC
voltage is called the ____ value.
a. | average | c. | peak-to-peak | b. | peak | d. | RMS |
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7.
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The ____ value must be found when a sine wave AC voltage is changed into direct
current.
a. | average | c. | peak-to-peak | b. | peak | d. | RMS |
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8.
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In DC circuits, there is only one basic type of load, which is ____.
a. | inductive | c. | resistive | b. | amperage | d. | reversing |
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9.
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____ can be produced in AC circuits only when both current and voltage are
either positive or negative.
a. | Watts | c. | RMS | b. | True power | d. | a or b |
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10.
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The most common frequency used in electrical generation in the United States and
Canada is ____ hertz.
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11.
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In a 120 VAC 60 Hz sine wave find:
RMS value in volts
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12.
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Frecuency in cycles per second
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13.
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Peak to peak value in volts
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14.
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Peak voltage in volts
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Completion
Complete each
statement.
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15.
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Frequency is measured in ____________________.
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