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 17 of 51

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Q161.
Which of the following is not correct in respect of electrostatic instrument?

a.

It is essentially a voltmeter

b.

It is suitable for only high voltages

c.

It has a uniform scale

d.

It can be used for both ac and dc

Discuss
Answer: (c).It has a uniform scale
Q162.
The wave applied to X plates, for ohtaining trace of voltage wave, is

a.

sawtooth wave

b.

sinusoidal wave

c.

rectangular wave

d.

either (a) or (c)

Discuss
Answer: (a).sawtooth wave
Q163.
The response of a thermistor overs the whole of its temperatures range is

a.

linear

b.

non-linear

c.

almost linear

d.

either (a) or (c)

Discuss
Answer: (b).non-linear
Q164.
A resistance is measured by voltmeter-ammeter method. The voltmeter is 0-250V, ± 1% accuracy and ammeter is 0-5 A, ± 1 % accuracy. The readings of voltmeter and ammeter are 100 V and 2 A respectively. The error in the measured resistance can be

a.

± 1%

b.

± 2%

c.

± 5%

d.

± 10%

Discuss
Answer: (c).± 5%
Q165.
It is required to study transients during switching process. Which CRO should be preferred?

a.

Ordinary CRO

b.

Dual beam CRO

c.

Dual trace CRO

d.

Storage oscilloscope

Discuss
Answer: (d).Storage oscilloscope
Q166.
Assertion (A): In loss of charge method, it is preferable to use an electronic voltmeter.

Reason (R): The resistance of electronic voltmeter is very high.

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: (a).Both A and R are true and R is correct explanation of A
Q167.
If the secondary winding of CT is opened when primary coil is carrying current

a.

transformer will burn immediately

b.

there will be weak flux density in core

c.

there will be very high induced voltage in secondary

d.

there will be high current in secondary

Discuss
Answer: (c).there will be very high induced voltage in secondary
Q168.
The percentage limiting error in an instrument reading 8.3 V and having guaranteed accuracy of 1% of the full scale reading and range of 0-150 V is

a.

1.81%

b.

0.181%

c.

18.1%

d.

0.0018%

Discuss
Answer: (c).18.1%
Q169.
Consider the following features of an instrument

I. suitable for both ac and dc
II. free from hysteresis and eddy current errors
III. No waveform and frequency errors
IV. it is essentially a voltmeter

This instrument is

a.

moving iron

b.

moving coil

c.

electrostatic

d.

dynamometer

Discuss
Answer: (c).electrostatic
Q170.
Which one of the following effects is used in measuring power?

a.

Seeback

b.

Ferrari

c.

Induction

d.

Hall

Discuss
Answer: (c).Induction
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