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 1 of 51

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Q1.
In figure, Z1 = 200∠60° Ω, Z2 = 400∠ - 90° Ω, Z3 = 300∠0°. Then Z4 for bridge to be balanced is

a.

150∠30° Ω

b.

400∠ - 90° Ω

c.

300∠90° Ω

d.

600∠ - 150° Ω

Discuss
Answer: (d).600∠ - 150° Ω
Q2.
Figure shows an RC potentiometer to measure ac voltage. It is desired that V0/Vi should be independent of frequency. The value of C should be

a.

10 μF

b.

11 μF

c.

0.1 μF

d.

0.09 μF

Discuss
Answer: (a).10 μF
Q3.
Magnetic flux density has the dimensions

a.

A

b.

B

c.

C

d.

D

Discuss
Answer: (a).A
Q4.
A full wave rectifier type meter is used to measure the wave shape shown in figure. The voltmeter is calibrated to read rms value of sine wave. The reading of voltmeter will be

a.

50/√2 V

b.

100/√2 V

c.

100 V

d.

111 V

Discuss
Answer: (d).111 V
Q5.
In figure the bridge is balanced when Z4 is

a.

120∠70°

b.

187.5∠ - 10°

c.

187.5∠ - 70°

d.

333.3∠ - 70°

Discuss
Answer: (c).187.5∠ - 70°
Q6.
The dimensions of EMF are

a.

A

b.

B

c.

C

d.

D

Discuss
Answer: (a).A
Q7.
In figure, the position of voltmeter and ammeter are exchanged. It may result in damage to

a.

both the instruments

b.

ammeter

c.

voltmeter

d.

neither of two

Discuss
Answer: (b).ammeter
Q8.
In the wheatstone bridge in figure, each resistance is increased by 0.05%. The value of v0 will be

a.

50 mV

b.

5 mV

c.

0.1 mV

d.

zero

Discuss
Answer: (d).zero
Q9.
In the balanced bridge shown in figure. X should be

a.

a self inductance having resistance

b.

a capacitance

c.

a non-inductive resistance

d.

an inductance and capacitance in parallel

Discuss
Answer: (a).a self inductance having resistance
Q10.
In figure, Za = 100∠50°, Zb = 300∠-90° and Zc = 200∠0°. For balanced condition, Zd will be

a.

600∠ - 40°

b.

600∠140°

c.

600∠ - 140°

d.

150∠140°

Discuss
Answer: (c).600∠ - 140°
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