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 2 of 51

Discover more Topics under Electronics and Communication Engineering

Q11.
The current through a resistance R is shown in figure. The computed value of power is

a.

400 ± 0.42 W

b.

400 ± 4.6 W

c.

400 ± 8.85 W

d.

400 ± 10.65 W

Discuss
Answer: (c).400 ± 8.85 W
Q12.
What would be the reading of voltmeter as shown in below figure. The voltmeter has a 0-1 V scale and is a 20000 Ω/V meter

a.

0.4545 V

b.

0.082 V

c.

0.82 V

d.

4.54 V

Discuss
Answer: (b).0.082 V
Q13.
Figure shows a Wheatstone bridge with RTD to one arm. If resistance of RTD = 1020 Ω, the voltage V0 is

a.

49 mV

b.

51 mV

c.

48 mV

d.

45 mV

Discuss
Answer: (a).49 mV
Q14.
The ac bridge in figure is balanced. Z1 = 100∠30°, Z2 = 150∠0°, Z3 = 250∠ - 40° Then Z4 =

a.

375∠70° Ω

b.

375∠ - 70° Ω

c.

150∠0° Ω

d.

150∠20° Ω

Discuss
Answer: (b).375∠ - 70° Ω
Q15.
In bridge circuit of figure, equivalent resistance between A and B is

a.

1 Ω

b.

0.5 Ω

c.

2 Ω

d.

1.5 Ω

Discuss
Answer: (a).1 Ω
Q16.
Which of the following closely represents the resistance-temperature characteristics of thermistor?

a.

A

b.

B

c.

C

d.

D

Discuss
Answer: (a).A
Q17.
In figure the output V0 is

a.

2V1 + V2 - 2V3

b.

2(V1 + V2) - V3

c.

V1 + V2 + V3

d.

V1 + 2V2 - V3

Discuss
Answer: (a).2V1 + V2 - 2V3
Q18.
If n measurements of a quantity are made, the arithmetic mean is

a.

A

b.

B

c.

C

d.

D

Discuss
Answer: (b).B
Q19.
The standard deviation σ in terms of n observations having deviations from mean dm can be written as

a.

A

b.

B

c.

C

d.

D

Discuss
Answer: (b).B
Q20.
In figure, C0 is distributed capacitance and C is tuning capacitor. If C = C1 for fundamental frequency and C = C2 for second harmonic, then C0 =

a.

A

b.

B

c.

C

d.

D

Discuss
Answer: (b).B
Page 2 of 51