Multiple Choice
Identify the
choice that best completes the statement or answers the question.
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1.
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T7D01 Which instrument would you use to
measure electric potential or electromotive force?
a. | An ammeter | c. | A
wavemeter | b. | A voltmeter | d. | An
ohmmeter |
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2.
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T7D02 What is the correct way to connect a
voltmeter to a circuit?
a. | In series with the circuit | c. | In quadrature with the circuit | b. | In parallel with the circuit | d. | In phase with the
circuit |
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3.
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T7D03 How is a simple ammeter connected to a
circuit?
a. | In series with the circuit | c. | In quadrature with the circuit | b. | In parallel with the circuit | d. | In phase with the
circuit |
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4.
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T7D04 Which instrument is used to measure
electric current?
a. | An ohmmeter | c. | A
voltmeter | b. | A wavemeter | d. | An
ammeter |
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5.
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T7D05 What instrument is used to measure
resistance?
a. | An oscilloscope | c. | A
noise bridge | b. | A spectrum
analyzer | d. | An ohmmeter |
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6.
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T7D06 Which of the following might damage
a multimeter?
a. | Measuring a voltage too small for the chosen
scale | c. | Attempting to measure voltage when using the resistance
setting | b. | Leaving the meter in the milliamps position
overnight | d. | Not allowing it to warm up properly |
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7.
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T7D07 Which of the following measurements are
commonly made using a multimeter?
a. | SWR and RF power | c. | Impedance and reactance | b. | Signal strength
and noise | d. | Voltage and resistance |
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8.
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T7D08 Which of the following types of solder
is best for radio and electronic use?
a. | Acid-core solder | c. | Rosin-core solder | b. | Silver
solder | d. | Aluminum solder |
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9.
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T7D09 What is the characteristic appearance
of a cold solder joint?
a. | Dark black spots | c. | A
grainy or dull surface | b. | A bright or shiny
surface | d. | A greenish tint |
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10.
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T7D10 What is probably happening when an
ohmmeter, connected across an unpowered circuit, initially indicates a low resistance and then shows
increasing resistance with time?
a. | The ohmmeter is defective | c. | The circuit contains a large Inductor | b. | The circuit contains a large capacitor | d. | The circuit is a
relaxation oscillator |
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11.
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T7D11 Which of the following precautions
should be taken when measuring circuit resistance with an ohmmeter?
a. | Ensure that the applied voltages are
correct | c. | Ensure that the circuit Is
grounded | b. | Ensure that the circuit is not
powered | d. | Ensure that the circuit is operating at the correct
frequency |
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12.
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T7D12 Which of the following precautions
should be taken when measuring high voltages with a voltmeter?
a. | Ensure that the voltmeter has very low
impedance | c. | Ensure that the circuit Is grounded through the
voltmeter | b. | Ensure that the voltmeter and leads are rated lot
use at the voltages to be measured | d. | Ensure that the voltmeter is set to the correct
frequency |
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