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 13 of 51

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Q121.
A meter having 0-1000 ฮผA range and 1000 ฮฉ resistance is required to be changed to 0-100 mA meter. The value of shunt resistance is about

a.

1 ฮฉ

b.

10 ฮฉ

c.

99 ฮฉ

d.

100 ฮฉ

Discuss
Answer: (b).10 ฮฉ
Q122.
An induction wattmeter can be used for

a.

dc only

b.

50 Hz ac only

c.

both ac and dc

d.

high frequency ac only

Discuss
Answer: (b).50 Hz ac only
Q123.
If the current in a capacitor leads the voltage by 80°, the loss angle of capacitor is

a.

80°

b.

10°

c.

100°

d.

170°

Discuss
Answer: (b).10°
Q124.
In an induction wattmeter, the shading bands are made of non conducting material.

a.

True

b.

False

c.

May be True or False

d.

can't say

Discuss
Answer: (b).False
Q125.
Consider the following statements

1. Thermistor is more sensitive than platinum resistance thermometer
2. The resistance of thermistor is solely a function of its absolute temperature whether the source of heat is external or internal
3. Thermistor has linear temperature-resistance relationship
4. Thermistor has linear negative temperature coefficient

Of the Statements, the correct statements are

a.

1 and 2

b.

3 and 4

c.

1, 2, 3, 4

d.

1, 2 and 4

Discuss
Answer: (d).1, 2 and 4
Q126.
A moving coil meter has 10 ฮฉ resistance and requires 40 mA for full scale deflection. The shunt resistance required to convert it into 0-2 A ammeter is

a.

0.1021 ฮฉ

b.

0.2041 ฮฉ

c.

0.256 ฮฉ

d.

0.4210 ฮฉ

Discuss
Answer: (b).0.2041 ฮฉ
Q127.
Which of the following instruments can be used for dc as well ac upto a few MHz?

1. Moving iron instrument
2. Thermocouple instrument
3. Induction instrument
4. Moving coil instrument

Select the correct answer as per following codes

a.

2 only

b.

2 and 3 only

c.

1, 2 and 3 only

d.

2 and 4 only

Discuss
Answer: (a).2 only
Q128.
Assertion (A): Strain measurement using strain gauge invariably requires a dummy strain gauge.

Reason (R): The resistance of strain gauge depends on temperature.

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: (a).Both A and R are true and R is correct explanation of A
Q129.
If a shunt of 200 ฮฉ resistance is used with a galvanometer of 1000 ฮฉ resistance, the multiplying power is

a.

6

b.

5

c.

1/5

d.

1/6

Discuss
Answer: (a).6
Q130.
Insertion of a dielectric material between the plates of an air capacitor

a.

increases the capacitance

b.

decreases capacitance

c.

has no effect an capacitance

d.

increases breakdown voltage

Discuss
Answer: (a).increases the capacitance
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