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 27 of 51

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Q261.
A dual trace CRO has

a.

one electron gun

b.

two electron guns

c.

one electron gun with one two pole switch

d.

two electron guns with one two pole switch

Discuss
Answer: (c).one electron gun with one two pole switch
Q262.
For measuring mutual inductance we can use

a.

Anderson bridge

b.

Maxwell's bridge

c.

Heaviside bridge

d.

Either (a) or (b)

Discuss
Answer: (c).Heaviside bridge
Q263.
Assertion (A): If the resistance of shunt of an ammeter is increased, the range of ammeter is reduced.

Reason (R): If the series resistance of a voltmeter is increased, the range of voltmeter is increased.

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
Q264.
Two sinusoidal signals of equal amplitude and frequency are applied to X and Y plate of CRO respectively. The observed Lissajous pattern is a straight line. The phase shift between signals is

a.

zero

b.

90°

c.

either zero or 180°

d.

either 90° or 270°

Discuss
Answer: (c).either zero or 180°
Q265.
The scale of a dynamometer is linear when used as

a.

ammeter

b.

voltmeter

c.

wattmeter

d.

both (a) and (c)

Discuss
Answer: (c).wattmeter
Q266.
Three phase four wire induction energy meter is used to measure

a.

energy in 3 phase balanced star load

b.

energy in 3 phase balanced delta load

c.

energy in 3 phase unbalanced load

d.

either (a) or (b)

Discuss
Answer: (c).energy in 3 phase unbalanced load
Q267.
Thermistors are made of

a.

pure metals

b.

pure insulators

c.

tintered mixture of metallic oxides

d.

pure semiconductors

Discuss
Answer: (c).tintered mixture of metallic oxides
Q268.
The Y plates of a CRO are excited by a voltage 2 sin 100 t and the X plates are not connected. The display would be

a.

a vertical line

b.

a horizontal line

c.

sine wave

d.

slant line

Discuss
Answer: (a).a vertical line
Q269.
Heating effect of current is used in

a.

ammeters

b.

voltmeters

c.

both ammeters and voltmeters

d.

wattmeters

Discuss
Answer: (c).both ammeters and voltmeters
Q270.
The coils of Drysdale polar potentiometer are wound non-inductively.

a.

True

b.

False

c.

May be True or False

d.

can't say

Discuss
Answer: (a).True
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