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 15 of 51

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Q141.
An average responding rectifier type electronic voltmeter has its scale calibrated in terms of rms value of sine wave. If 100 V peak value square wave is fed to this voltmeter, the reading will be

a.

111 V

b.

100 V

c.

90.9 V

d.

70.7 V

Discuss
Answer: (a).111 V
Q142.
In low power factor wattmeter, the compensating coil is connected

a.

in series with current coil

b.

in parallel with current coil

c.

in series with pressure coil

d.

in parallel with pressure coil

Discuss
Answer: (c).in series with pressure coil
Q143.
The difference between measured value and true value is called

a.

gross error

b.

relative error

c.

probable error

d.

absolute error

Discuss
Answer: (d).absolute error
Q144.
In air friction damping

a.

the air pressure opposes the motion of piston when it is moving inwards

b.

the air pressure opposes the motion of piston when it is moving outwards

c.

the air pressure opposes the motion of piston both when it is moving inwards as well as outwards

d.

the air pressure may oppose or aid the motion of piston depending on the design

Discuss
Answer: (c).the air pressure opposes the motion of piston both when it is moving inwards as well as outwards
Q145.
In indicating instruments the controlling torque is provided by a spring.

a.

True

b.

False

c.

May be True or False

d.

can't say

Discuss
Answer: (a).True
Q146.
For measuring a very high resistance we should use

a.

Kelvin's double bridge

b.

Wheatstone bridge

c.

Meggar

d.

Either (a) or (c)

Discuss
Answer: (c).Meggar
Q147.
Assertion (A): Damping in a vibration galvanometer is small.

Reason (R): Vibration galvanometer is a PMMC instrument.

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
Q148.
Magnetic flux can be measured by

a.

capacitive pick up

b.

inductive pick up

c.

resistive pick up

d.

hall effect pick up

Discuss
Answer: (d).hall effect pick up
Q149.
Panel type instruments are used in

a.

power stations

b.

automobiles

c.

industries

d.

all of the above

Discuss
Answer: (d).all of the above
Q150.
Which of the following can be used for measuring capacitance?

a.

De sauty bridge

b.

Maxwell's bridge

c.

Anderson bridge

d.

Hay's bridge

Discuss
Answer: (a).De sauty bridge
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