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 11 of 51

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Q101.
Assertion (A): Schering bridge is a low voltage bridge.

Reason (R): Schering bridge is very commonly used for measurement of capacitance.

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: (d).A is false R is true
Q102.
Electrostatic voltmeter is suitable only for low voltages.

a.

True

b.

False

c.

May be True or False

d.

can't say

Discuss
Answer: (b).False
Q103.
An accelerometer has a seismic mass of 0.05 kg and spring constant of 3 x 10⁵ N/m. If maximum displacement of mass is ± 1 mm, the maximum acceleration which can be measured is

a.

30 m/s²

b.

60 m/s²

c.

90 m/s²

d.

120 m/s²

Discuss
Answer: (b).60 m/s²
Q104.
If an inductance L is connected in one arm of bridge and resistance R1, R2, R3 in other three arms

a.

the bridge cannot be balanced

b.

the bridge can be balanced

c.

the bridge is balanced for some specified value of frequency

d.

the bridge is balanced for some specific values of R1, R2, R3

Discuss
Answer: (a).the bridge cannot be balanced
Q105.
A moving iron voltmeter reads 250 V when connected to 250 V dc. If connected to 250 V 50 Hz, the voltmeter reading is likely to be

a.

250 V

b.

252 V

c.

248 V

d.

210 V

Discuss
Answer: (c).248 V
Q106.
A single element strain gauge bridge has two fixed resistances R1 and R1 of 120 Ω each and a variable resistance which gives full deflection at 120 Ω for zero strain and 120.6 Ω for straine e. If gauge factor is 2, strain e is

a.

0.0025

b.

0.0035

c.

0.005

d.

0.0075

Discuss
Answer: (a).0.0025
Q107.
If eddy current damping is to be used, the disc of instrument should be

a.

non-conducting and non-magnetic

b.

conducting and magnetic

c.

conducting and non-magnetic

d.

non-conducting and magnetic

Discuss
Answer: (c).conducting and non-magnetic
Q108.
The scale of moving iron instrument is linear.

a.

True

b.

False

c.

May be True or False

d.

can't say

Discuss
Answer: (b).False
Q109.
With a variable reluctance tachometer having 60 rotor teeth the count reads 3600 counts per minute. The speed in RPM is

a.

36

b.

60

c.

360

d.

3600

Discuss
Answer: (b).60
Q110.
When measuring phase angle between two waves using a CRO, the time base generator is connected to

a.

X plate

b.

Y plate

c.

both X and Y plate

d.

neither X nor Y plates

Discuss
Answer: (d).neither X nor Y plates
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