1) In the beginning, all the outputs of the successive approximation type register is at
a. Logic zero
b. Logic one
c. Toggling
d. None of these
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Answer
Explanation
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ANSWER: Logic zero
Explanation:
No explanation is available for this question!
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2) Q meter is used to measure the properties of
a. Inductive coils
b. Non inductive coils
c. Capacitive coils
d. Both (a) and (c)
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Answer
Explanation
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ANSWER: Both (a) and (c)
Explanation:
No explanation is available for this question!
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3) In potentiometric type DVM, the adjustment of sliding contact is done by
a. A single phase servomotor
b. Two phase servomotor
c. Three phase servomotor
d. All of these
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Answer
Explanation
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ANSWER: Two phase servomotor
Explanation:
No explanation is available for this question!
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4) In a ramp type DVM, the multivibrator determines the rate at which the
a. Clock pulses are generated
b. Measurement cycles are initiated
c. It oscillates
d. Its amplitude varies
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Answer
Explanation
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ANSWER: Measurement cycles are initiated
Explanation:
No explanation is available for this question!
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5) Which among the following is not a type of digital voltmeters?
a. Ramp type
b. Integrating
c. Potentiometric type
d. None of these
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Answer
Explanation
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ANSWER: None of these
Explanation:
No explanation is available for this question!
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6) The measurement range of digital voltmeter is
a. ± 1V to ± 1MV
b. ± 1V to ± 1kV
c. ± 1kV to ± 1MV
d. ± 100 kV to ± 100MV
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Answer
Explanation
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ANSWER: ± 1V to ± 1MV
Explanation:
No explanation is available for this question!
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7) In electronic voltmeter, the range of input voltages can be extended by using
a. Functional switch
b. Input attenuator
c. Rectifier
d. Balanced bridge dc amplifier
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Answer
Explanation
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ANSWER: Input attenuator
Explanation:
No explanation is available for this question!
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8) An RMS reading voltmeter can accurately measure voltages of
a. Sine waveforms
b. Square waveforms
c. Saw tooth waveforms
d. All of these
e. None of these
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Answer
Explanation
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ANSWER: All of these
Explanation:
No explanation is available for this question!
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9) Electronic voltmeters can be designed to measure
a. Only very small voltages
b. Only very high voltages
c. Both very small and very high voltages
d. None of these
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Answer
Explanation
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ANSWER: Both very small and very high voltages
Explanation:
No explanation is available for this question!
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10) To increase the current sensitivity below 10 mV, electronic instrument uses
a. Amplifiers
b. Modulator
c. Transducer
d. Oscillator
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Answer
Explanation
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ANSWER: Amplifiers
Explanation:
No explanation is available for this question!
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