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.
A variable reluctance type tachometer has 150 teeth on rotor. The counter records 13500 pulse/sec. The rotational speed is
Discuss
Answer: (b).5400 RPM
Q142.
The current through the coil of an electromagnet is doubled. The magnetic field around the coil
Discuss
Answer: (b).is doubled
Q143.
In a moving iron voltmeter the coil has a resistance of 20 ฮฉ and an inductance of 0.3 H. The swamping resistance in 2000 ฮฉ. To ensure correct reading with dc as well as 50 Hz ac, the value of capacitor to be connected in parallel with swamping resistance should be
Discuss
Answer: (b).0.0311 ฮผF
Q144.
Two resistances R1 = 18.7 ฮฉ. and R2 = 3.624 ฮฉ in series. The total resistance to the appropriate number of significant figures is
Discuss
Answer: (c).22.3 ฮฉ
Q145.
The input impedance of CRO is about
Discuss
Answer: (d).one mega ohm
Q146.
Which of the following is not correct in respect of electrostatic instrument?
Discuss
Answer: (c).It has a uniform scale
Q147.
The wave applied to X plates, for ohtaining trace of voltage wave, is
Discuss
Answer: (a).sawtooth wave
Q148.
The response of a thermistor overs the whole of its temperatures range is
Discuss
Answer: (b).non-linear
Q149.
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
Discuss
Answer: (c).± 5%
Q150.
It is required to study transients during switching process. Which CRO should be preferred?
Discuss
Answer: (d).Storage oscilloscope