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 12 of 51

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Q111.
It is required that a strain gauge has gauge factor of 100. The proper strain gauge is

a.

constantan strain gauge

b.

nichrome strain gauge

c.

semiconductor strain gauge

d.

alloy strain gauge

Discuss
Answer: (c).semiconductor strain gauge
Q112.
LVDT is a

a.

pressure transducer

b.

displacement transducer

c.

velocity transducer

d.

acceleration transducer

Discuss
Answer: (b).displacement transducer
Q113.
A 0-200 V voltmeter has an accuracy of 0.75% of full scale reading. If voltage measured is 100 V, the error is

a.

3%

b.

2%

c.

1.5%

d.

.75%

Discuss
Answer: (c).1.5%
Q114.
In Schering bridge, the potential of detector above earth potential is about

a.

a few volts

b.

10 kV

c.

1000 V

d.

either (a) or (b)

Discuss
Answer: (a).a few volts
Q115.
Which of the following instruments has non-linear scale?

1. Moving coil instrument
2. Moving iron instrument
3. Electrostatic instrument
4. Rectifier instrument

Select the answer as per following codes

a.

2 only

b.

2 and 3 only

c.

2, 3 and 1

d.

1, 2, 3 and 4

Discuss
Answer: (b).2 and 3 only
Q116.
Kelvin's double bridge is used to measure low resistances because

a.

it has high sensitivity

b.

there is no thermoelectric emf

c.

resistance variation due to temperature

d.

effect of contact and lead resistances is eliminated

Discuss
Answer: (d).effect of contact and lead resistances is eliminated
Q117.
Assertion (A): Shunt of an ammeter has a low resistance.

Reason (R): Shunt may be connected in series or in parallel with ammeter.

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: (c).A is true R is false
Q118.
The scale of hot wire instrument is linear.

a.

True

b.

False

c.

May be True or False

d.

can't say

Discuss
Answer: (b).False
Q119.
The D'Arsonval- movement can be converted into audio frequency ac ammeter by adding a

a.

thermocouple

b.

transducer

c.

chopper

d.

rectifier

Discuss
Answer: (d).rectifier
Q120.
The resistance of a 125 Ω strain gauge changes by 1 ohm for 4000 micro strain. The gauge factor is

a.

1.5

b.

2

c.

2.5

d.

3

Discuss
Answer: (b).2
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