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 14 of 51

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Q131.
The power input and output in a device are 3650 W and 3385 W with each reading in doubt by ± 10 W. The percentage uncertainty in losses is

a.

± 7.55%

b.

± 3.77%

c.

± 11.32%

d.

± 15.09%

Discuss
Answer: (a).± 7.55%
Q132.
A meter coil has a resistance of 100 ฮฉ and a full scale deflection current of 10 mA. To convert it into a voltmeter of 0-200 V range, the series resistance should be

a.

20 kฮฉ

b.

19.9 kฮฉ

c.

1.9 kฮฉ

d.

20.1 kฮฉ

Discuss
Answer: (b).19.9 kฮฉ
Q133.
Which of these has a magnetic brake?

a.

Thermocouple ammeter

b.

Energy meter

c.

Dynamometer wattmeter

d.

Frequency meter

Discuss
Answer: (b).Energy meter
Q134.
A digital voltmeter can count from 0 to 9999. If full scale reading is 9.999 V, the resolution of full scale reading is

a.

0.001

b.

1000

c.

2 digit

d.

1 mV

Discuss
Answer: (d).1 mV
Q135.
The most serious problems in ac bridge measurement is

a.

eddy currents

b.

leakage current

c.

residual magnetism

d.

stray fields

Discuss
Answer: (d).stray fields
Q136.
Assertion (A): An electrostatic voltmeter is free from hysteresis and eddy current errors.

Reason (R): An electrostatic voltmeter has a number of fixed and moving vanes in parallel.

a.

Both A and R are true and R is correct explanation of A

b.

Both A and R are true but R is not correct explanation of A

c.

A is true R is false

d.

A is false R is true

Discuss
Answer: (b).Both A and R are true but R is not correct explanation of A
Q137.
The pointer of an indicating instrument should be

a.

very light

b.

very heavy

c.

neither heavy nor light

d.

heavy

Discuss
Answer: (a).very light
Q138.
The resistance of resistance strain gauge is about

a.

5 ฮฉ

b.

50 ฮฉ

c.

120 ฮฉ

d.

0.5 ฮฉ

Discuss
Answer: (c).120 ฮฉ
Q139.
Which bridge can be used to measure frequency?

a.

Maxwell

b.

Kelvin

c.

Schering

d.

Wein

Discuss
Answer: (d).Wein
Q140.
Two numbers are 131 ± 5 and 629 ± 3. The sum of the numbers with range of doubt is

a.

760 ± 8

b.

760 ± 2

c.

760 + 8

d.

760 - 8

Discuss
Answer: (a).760 ± 8
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