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 gauge factor of a semiconductor strain gauge is about
Discuss
Answer: (c).100
Q72.
Which of the following instruments is used almost exclusively to measure radio frequency currents?
Discuss
Answer: (d).Thermocouple
Q73.
The coil of a DArsonval galvanometer has N turns. If flux density is B, current is I and area of coil is A, the deflecting torque is
Discuss
Answer: (b).NBIA
Q74.
Consider the following statements regarding electromagnetic flowmeter

1. AC excitation is used to avoid polarisation of fluid.
2. The meter calibration is changed as viscosity of fluid changes.
3. Stainless steel pipes can be used for measuring the flow of liquid of high conductivity.

Of the above statements
Discuss
Answer: (d).1 and 3 are correct
Discuss
Answer: (a).very low pressure
Q76.
Assertion (A): CRT is the most important component of a CRO.

Reason (R): When an electron beam strikes the screen of CRT, a spot of light is produced.
Discuss
Answer: (b).Both A and R are true but R is not correct explanation of A
Q77.
A capacitance transducer has two plates each of area 5 mm². The coil gap is 2 mm. Displacement sensitivity due to change in gap length is
Discuss
Answer: (a).11.1 pF/cm
Q78.
Four capacitors are in parallel. Their values are 36.3 ฮผF, 3.85 ฮผF, 34.002 ฮผF and 850 ฮผF with an uncertainty of digit in the last place. The total capacitance in significant figures is
Discuss
Answer: (b).75.0 ± 0.1 ฮผF
Q79.
In a single phase power factor meter the phase difference between currents in the two pressure coils is
Discuss
Answer: (c).exactly 90°
Q80.
In an ac coordinate potentiometer, the currents inphase and quadrature potentiometer are adjusted to be
Discuss
Answer: (a).out of phase by 90°