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 19 of 51

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Q181.
A polyphase wattmeter basically consists of two wattmeters. The moving system of two wattmeters

a.

are common

b.

are separate

c.

are generally common

d.

are generally separate

Discuss
Answer: (a).are common
Q182.
The dead zone in a pyrometer is 0.125% of span. The calibration is 400°C to 1000°C. What temperature change might occur before it is detected.

a.

0.125°C

b.

0.75°C

c.

0.4°C

d.

1°C

Discuss
Answer: (b).0.75°C
Q183.
The dimensions of force are

a.

MLT¯²

b.

ML¯¹T¯²

c.

MLT¯¹

d.

ML²T¯²

Discuss
Answer: (a).MLT¯²
Q184.
A 1 mA meter is to be converted to 1 A ammeter. The meter resistance is 100 ฮฉ. The value of shunt resistance is

a.

0.001 ฮฉ

b.

0.1001 ฮฉ

c.

100 ฮฉ

d.

1000 ฮฉ

Discuss
Answer: (b).0.1001 ฮฉ
Q185.
The use of thermocouple meters for ac measurement leads to a scale which is

a.

linear

b.

square law

c.

logarithmic

d.

exponential

Discuss
Answer: (b).square law
Q186.
Assertion (A): A low power factor wattmeter has special constructional features to ensure accurate measurement.

Reason (R): Extension of wattmeter range in dc circuit can be easily done by using current and potential transformer.

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
Q187.
The scale of dynamometer wattmeter is non linear.

a.

True

b.

False

c.

May be True or False

d.

can't say

Discuss
Answer: (b).False
Q188.
Magnetic deflection is inversely proportional to

a.

voltage

b.

(voltage)^0.5

c.

(voltage)^1.5

d.

(voltage)^2

Discuss
Answer: (b).(voltage)^0.5
Q189.
The current passing through a resistance of 100 ± 0.2% ฮฉ is 2 ± 0.5% A. The limiting error in computation of power will be

a.

± 0.7%

b.

± 0.9%

c.

± 1.2%

d.

± 0.3%

Discuss
Answer: (c).± 1.2%
Q190.
If the secondary burden of a CT 15 VA and secondary current is 5 A, the load impedance of CT is

a.

0.6 ฮฉ

b.

5 ฮฉ

c.

6 ฮฉ

d.

10 ฮฉ

Discuss
Answer: (a).0.6 ฮฉ
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