Digital Voltmeters

Electrical Measurements

This set of Electrical Measurements & Measuring Instruments Multiple Choice Questions & Answers (MCQs) focuses on “Digital Voltmeters”.

1. Digital voltmeters converts ________
a) analog to digital signal
b) digital to analog signal
c) current to voltage
d) resistance to voltage

2. Digital voltmeters can be used to measure ________
a) voltage only
b) voltage, temperature, pressure, etc
c) voltage and current
d) voltage and resistance

3. A digital voltmeter reduces parallax error.
a) True
b) False

4. In a DVM, a transducer converts ________
a) input to a proportional current
b) input to a proportional power
c) input to a proportional voltage
d) input to a proportional resistance

5. In a DVM, a signal conditioning circuit is used ________
a) to bring current to a suitable limit
b) to bring resistance to a suitable limit
c) to bring resistance to s suitable limit
d) to bring voltage to a suitable limit

6. Input range of DVM is _________
a) 1 V to 1000 V
b) 0.1 V to 10 V
c) 0.01 V to 1 V
d) 0.001 V to 0.1 V

7. Output in digital form can’t be used directly.
a) True
b) False

8. What is the effect of IC chips on DVM?
a) increase in cost
b) increase in power
c) reduction in cost
d) increase in size

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