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 9 of 51

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Q81.
A CT is used to feed current coils of wattmeter, energy meter, power factor meter and an ammeter. Then
Discuss
Answer: (a).all the coils are in series
Discuss
Answer: (b).compensate for change in temperature
Q83.
In an ac single phase energy meter, the potential coil is put on
Discuss
Answer: (b).central limb of upper magnet
Q84.
The chemical effect of current is used in
Discuss
Answer: (a).dc ampere hour meter
Q85.
A moving coil instrument has a resistance of 0.5 ฮฉ and a full scale deflection of 0.1 A. To convert it into an ammeter of 0-10 A the shunt resistance should be
Discuss
Answer: (b).0.005 ฮฉ
Q86.
Potentiometer method of dc voltage measurement is more accurate than direct measurement using a voltmeter because
Discuss
Answer: (c).it does not load the circuit at all
Q87.
Assertion (A): A hot wire ammeter has a cramped scale.

Reason (R): The heat is proportional to square of current.
Discuss
Answer: (a).Both A and R are true and R is correct explanation of A
Discuss
Answer: (a).It is a unidirectional voltage
Q89.
Which of the following are needed both for protection and metering?
Discuss
Answer: (b).Instrument transformers
Q90.
A digital frequency counter can be converted to DVM by addition of a suitable
Discuss
Answer: (b).D/A converter