Measurements and Instrumentation MCQs

Welcome to our comprehensive collection of Multiple Choice Questions (MCQs) on Measurements and Instrumentation, a fundamental topic in the field of Electronics and Communication Engineering. Whether you're preparing for competitive exams, honing your problem-solving skills, or simply looking to enhance your abilities in this field, our Measurements and Instrumentation MCQs are designed to help you grasp the core concepts and excel in solving problems.

In this section, you'll find a wide range of Measurements and Instrumentation mcq questions that explore various aspects of Measurements and Instrumentation problems. Each MCQ is crafted to challenge your understanding of Measurements and Instrumentation principles, enabling you to refine your problem-solving techniques. Whether you're a student aiming to ace Electronics and Communication Engineering tests, a job seeker preparing for interviews, or someone simply interested in sharpening their skills, our Measurements and Instrumentation MCQs are your pathway to success in mastering this essential Electronics and Communication Engineering topic.

Note: Each of the following question comes with multiple answer choices. Select the most appropriate option and test your understanding of Measurements and Instrumentation. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

So, are you ready to put your Measurements and Instrumentation knowledge to the test? Let's get started with our carefully curated MCQs!

Measurements and Instrumentation MCQs | Page 23 of 51

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Q221.
If A = 131 ± 4 and B = 106 ± 4, the percentage range of doubt in A - B is

a.

4%

b.

8%

c.

16%

d.

32%

Discuss
Answer: (d).32%
Q222.
Two resistance R1 and R2 are connected in series R1 = 528 ± 5 ฮฉ and R2 = 325 ± 3ฮฉ. The total resistance will be

a.

853 ± 2 ฮฉ

b.

853 ± 5 ฮฉ

c.

853 ± 3 ฮฉ

d.

853 ± 8 ฮฉ

Discuss
Answer: (d).853 ± 8 ฮฉ
Q223.
The function of shunt in an ammeter is to

a.

by pass the current

b.

increase sensitivity of meter

c.

increase resistance of meter

d.

all of the above

Discuss
Answer: (a).by pass the current
Q224.
Which of the following does not use the principle of change in inductance?

a.

LVDT

b.

Inductance displacement transducer

c.

Strain gauge

d.

Reluctance pick up

Discuss
Answer: (c).Strain gauge
Q225.
It is necessary to measure the amplitudes of two signals and also the phase difference between them. This can be done by using a

a.

phase meter

b.

waveform meter

c.

vector voltmeter

d.

digital voltmeter

Discuss
Answer: (b).waveform meter
Q226.
An amplifier has to amplify pulses of 1 H-s duration. The minimum bandwidth of amplifier must be

a.

10 kHz

b.

10 MHz

c.

1 kHz

d.

1 MHz

Discuss
Answer: (d).1 MHz
Q227.
A moving coil meter has a resistance of 50 ohms and a full scale deflection current of 20 mA. To convert it into a voltmeter of 0-100 V range, the series resistance should be

a.

5000 ฮฉ

b.

5050 ฮฉ

c.

4950 ฮฉ

d.

505 ฮฉ

Discuss
Answer: (c).4950 ฮฉ
Q228.
In measuring a resistance by voltmeter-ammeter method, the voltmeter can be connected either across supply or across the resistance. If the resistance is low, the voltmeters should be connected

a.

across the supply

b.

across the resistance

c.

either in two positions

d.

preferably across the supply

Discuss
Answer: (b).across the resistance
Q229.
Which of the following methods can be used to measure power in a single phase circuit without using wattmeter?

1. One voltmeter, one ammeter
2. Two voltmeters, two ammeter
3. Three voltmeters
4. Three ammeters

a.

1 and 2 only

b.

2 and 4 only

c.

1 and 3 only

d.

3 and 4 only

Discuss
Answer: (d).3 and 4 only
Q230.
For measurement of surface temperature of solids the elements of RTD is usually in the shape of

a.

bar

b.

coil

c.

flat grid

d.

either (a) or (b)

Discuss
Answer: (c).flat grid
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