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 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
Q122.
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
Q123.
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
Q124.
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
Q125.
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
Q126.
Two ammeters A and B are connected in parallel in a circuit carrying 100 A. Their resistances are 0.8 mฮฉ. Their readings will be.

a.

55.56 and 44.44 A respectively

b.

44.44 A and 55.56 A respectively

c.

60 A and 40 A respectively

d.

40 A and 60 A respectively

Discuss
Answer: (a).55.56 and 44.44 A respectively
Q127.
In household energy meters the flux of series magnet is in phase with current but the flux of shunt magnet lags the voltage by 88°. The reading of energy meters

a.

will be correct

b.

will have a negative error

c.

will have a positive error

d.

may have positive or negative error

Discuss
Answer: (b).will have a negative error
Q128.
Assertion (A): A universal RLC bridge has a battery and also a high frequency ac source.

Reason (R): RLC bridge uses a Wienbridge arrangement for measuring 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: (c).A is true R is false
Q129.
A capacitance transducer can be used to measure

a.

thickness of sheet

b.

displacement

c.

level of fluids

d.

all of the above

Discuss
Answer: (d).all of the above
Q130.
The dynamometer principle can be used for

a.

ammeter only

b.

voltmeter only

c.

wattmeter only

d.

ammeter, voltmeter and wattmeter

Discuss
Answer: (d).ammeter, voltmeter and wattmeter
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