Potentiometric Integrating Type DVM

Electrical Measurements

This set of Electrical Measurements & Measuring Instruments Multiple Choice Questions & Answers (MCQs) focuses on “Potentiometric Integrating Type DVM”.

1. In a potentiometric DVM ________
a) voltage is compared
b) current is compared
c) resistance is compared
d) power is compared

2. How to obtain balance?
a) by using a detector
b) by changing the pot setting
c) by supplying voltage
d) by using a transformer

3. In a potentiometric DVM, balance is obtained manually.
a) True
b) False

4. Unknown voltage is __________
a) converted to current
b) boosted
c) filtered
d) measured using a voltmeter

5. How is the reference voltage obtained?
a) from a fixed current source
b) from a variable voltage source
c) from a variable current source
d) from a fixed voltage source

6. Feedback voltage is applied to the ________
a) comparator
b) error amplifier
c) potentiometer
d) sliding contact

7. Output of the comparator is known as ________
a) amplified signal
b) error signal
c) feedback signal
d) attenuated signal

8. Slider movement depends on ________
a) current magnitude
b) resistance magnitude
c) voltage magnitude
d) power magnitude

9. Accuracy of a potentiometric DVM is ________
a) zero
b) medium
c) low
d) high

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