# Electrical and Electronic Measurements & Instrumentation - Electrical Engineering (MCQ) questions and answers

Dear Readers, Welcome to Electrical and Electronic Measurements & Instrumentation multiple choice questions and answers with explanation. These objective type Electrical and Electronic Measurements & Instrumentation questions are very important for campus placement test, semester exams, job interviews and competitive exams like GATE, IES, PSU, NET/SET/JRF, UPSC and diploma.

Specially developed for the Electrical Engineering freshers and professionals, these model questions are asked in the online technical test and interview of many companies.

These tutorial are also important for your viva in university exams like Anna university, Pune, VTU, UPTU, CUSAT etc.

1)   The full range of audibility in audio frequency oscillator is
- Published on 16 Sep 15

a. 0 to 20 Hz
b. 20 Hz to 2 kHz
c. 20 Hz to 20 kHz
d. 20 Hz to 20 MHz
 Answer  Explanation  Related Ques ANSWER: 20 Hz to 20 kHz Explanation: No explanation is available for this question!

2)   A liquid crystal display requires
- Published on 16 Sep 15

a. An AC drive
b. A DC drive
c. Both AC and DC drive
d. None of these
 Answer  Explanation  Related Ques ANSWER: An AC drive Explanation: No explanation is available for this question!

3)   The detectors used in optical sensors is
- Published on 16 Sep 15

a. Photodiodes
b. Phototransistors
c. Laser
d. Only (a) and (b)
e. All the above
 Answer  Explanation  Related Ques ANSWER: Only (a) and (b) Explanation: No explanation is available for this question!

4)   Optical sensors used for the displacement measurement works on the principal that
- Published on 16 Sep 15

a. Intensity of light increases with distance
b. Intensity of light decreases with distance
c. Intensity of light remains constant with distance
d. Intensity of light increases with time
 Answer  Explanation  Related Ques ANSWER: Intensity of light decreases with distance Explanation: No explanation is available for this question!

5)   Capacitance sensor can measure very small displacement. It can be formed by varying
- Published on 16 Sep 15

a. Separation
b. Area
c. Permittivity
d. Either (a) or (b) or (c)
 Answer  Explanation  Related Ques ANSWER: Either (a) or (b) or (c) Explanation: No explanation is available for this question!

6)   The ionization gauge an instrument used for the measurement of
- Published on 16 Sep 15

a. Very low pressure
b. Medium pressure
c. High pressure
d. Very high pressure
 Answer  Explanation  Related Ques ANSWER: Very low pressure Explanation: No explanation is available for this question!

7)   Dead weight gauge is used for the measurement of pressure of
- Published on 16 Sep 15

8)   Bourdon tube is used for the measurement of gauge pressure of
- Published on 16 Sep 15

a. Gas
b. Liquid fluid
c. Solid
d. Only (a) and (b)
e. All the above
 Answer  Explanation  Related Ques ANSWER: Only (a) and (b) Explanation: No explanation is available for this question!

9)   The resistances of potential transformer winding is minimized by using
- Published on 16 Sep 15

a. Thick conductors and small length of turns
b. Thin conductors and small length of turns
c. Thin conductors and large length of turns
d. Thick conductors and large length of turns
 Answer  Explanation  Related Ques ANSWER: Thick conductors and small length of turns Explanation: No explanation is available for this question!

10)   The nominal ratio for a current transformer is given by
- Published on 16 Sep 15

a. (rated primary winding current)/(rated secondary winding current)
b. (number of turns in the primary winding)/(number of turns in the secondary winding )
c. (number of turns in the secondary winding)/(number of turns in the primary winding )
d. (rated secondary winding current)/(rated primary winding current)
 Answer  Explanation  Related Ques ANSWER: (rated primary winding current)/(rated secondary winding current) Explanation: No explanation is available for this question!

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