Measurement And Instrumentation MCQ Questions & Answers

Measurement And Instrumentation MCQ Questions & Answers | ECE

Learn Measurement And Instrumentation MCQ questions & answers are available for a Electronics and Communications Engineering(ECE) students to clear GATE exams, various technical interview, competitive examination, and another entrance exam. Measurement And Instrumentation MCQ question is the important chapter for a Electronics and Communications Engineering(ECE) and GATE students. Page-1 section-2

Identify the 'CORRECT' statements,
1. Loading effect is primarily caused by instruments having low sensitivity.
2. Relative error is the difference between the measured value and the true value.
3. Resolution is small increment is measurand that can be detected with certainty by the instrument.
4. Moving-coil permanent magnet instruments can be used for the measurements of AC and DC.

A) 1 and 4 B) 2 and 4 C) 1 and 3 D) 2 and 3

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Answer & Solution

Answer: Option C

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Swamping resistor is connected with PMMC meter in order to:

A) Obtain large deflecting torque B) Reduce the size of the meter C) Minimize the effect of stray magnetic fields D) Minimize the effect of temperature variation

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Answer & Solution

Answer: Option D

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A delay line is used in high speed CRO to introduce time delay in

A) vertical channel B) horizontal channel C) z axis of the CRT D) all of the above

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Answer & Solution

Answer: Option A

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Consider the following statements regarding data acquisition systems:
1. Digital data acquisition systems are used when wide frequency width is required.
2. Analog data acquisition system are more complex the digital systems.
3. Digital data acquisition systems are used when the physical quality being monitored has narrow bandwidth.
Which of the above statements are not correct?

A) 1 and 2 only B) 1 and 3 only C) 1, 2 and 3 D) 2 and 3 only

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Answer & Solution

Answer: Option A

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For controlling the vibration of the disc of an AC energy meter, damping torque is produced by

A) eddy current B) chemical effect C) electrostatic effect D) magnetic effect

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Answer & Solution

Answer: Option A

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Gas flow and gas pressure can be measured by

A) Potentiometer device B) Dielectric gauge C) Eddy current gauge D) Pirani gauge

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Answer & Solution

Answer: Option D

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What is the unit of measure for electrical pressure or electromotive force?

A) amps B) ohms C) volts D) watts

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Answer & Solution

Answer: Option C

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Error caused by the act of measurement on the physical system being tested is

A) Hysteresis error B) Random error C) Systematic error D) Loading error

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Answer & Solution

Answer: Option D

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Parameter defined as the nearness of the indicated value to the true value of the quantity being measured is

A) accuracy B) resolution C) reproducibility D) static error

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Answer & Solution

Answer: Option A

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The principle of operation of Q-meter is based on

A) Self inductance B) Mutual inductance C) Series resonance D) Parallel resonance

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Answer & Solution

Answer: Option C

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