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 8 of 51

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Q71.
The switch board instruments

a.

should be mounted in vertical position

b.

should be mounted in horizontal position

c.

should be mounted at about 45°

d.

should be mounted at about 80°

Discuss
Answer: (a).should be mounted in vertical position
Q72.
Radiation pyrometer is used to measure temperature in the range of

a.

-200 to 500° C

b.

0 to 500° C

c.

500 to 1200° C

d.

1200 to 2500° C

Discuss
Answer: (d).1200 to 2500° C
Q73.
The electromagnets of an induction wattmeter

a.

are laminated

b.

are not laminated

c.

may be laminated

d.

must not be laminated

Discuss
Answer: (a).are laminated
Q74.
In a vibrating reed frequency meter the natural frequency of two adjacent reeds have a difference of

a.

0.25 Hz

b.

0.5 Hz

c.

1.25 Hz

d.

1 Hz

Discuss
Answer: (b).0.5 Hz
Q75.
In a CRO, the time base signal is applied to

a.

X plates

b.

Y plates

c.

either X or Y plates

d.

alternately X and Y plates

Discuss
Answer: (a).X plates
Q76.
Schering bridge operates at a high voltage of about 10 kV.

a.

True

b.

False

c.

May be True or False

d.

can't say

Discuss
Answer: (a).True
Q77.
Which of these instrument does not have a control spring?

a.

Moving iron ammeter

b.

PMMC ammeter

c.

Electrostatic voltmeters

d.

Power factor meter

Discuss
Answer: (d).Power factor meter
Q78.
A piezoelectric force transducer has a charge sensitivity of 20 pC/N. It is connected to a charge amplifier and overall gain of transducer and amplifier is 50 mV/N. The gain of amplifier is

a.

1 mV/pC

b.

1.5 mV/pC

c.

2.5 mV/pC

d.

4 mV/pC

Discuss
Answer: (c).2.5 mV/pC
Q79.
An LVDT is used to measure displacement. The LVDT feeds a Voltmeter of 0-5 V range through a 250 gain amplifier. For a displacement 0.5 mm the output of LVDT is 2 mV. The sensitivity of instrument is

a.

0.1 V/mm

b.

0.5 V/mm

c.

1 V/mm

d.

5 V/mm

Discuss
Answer: (c).1 V/mm
Q80.
Assertion (A): When a wattmeter is used for low impedance loads, the pressure coil is connected across the load.

Reason (R): A wattmeter measures apparent power.

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
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