Electronics & Instrumentation MCQ Questions & Answers

Electronics & Instrumentation MCQ Questions & Answers | Electrical Engineering

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

Power amplifier is provided with
S1: Cross over distortion compensation
S2: Offset control

A) S1 is true & S2 is false B) S2 is true & S1 is false C) Both S1 & S2 are true D) Both S1 & S2 are false

Discuss

Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

The draw backs of strain gauges are
S1: Low fatigue life
S2: They are expensive, brittle and sensitive to temperature
S3: Poor linearity

A) S1 and S2 B) S2 and S3 C) S1 and S3 D) S1 only

Discuss

Answer & Solution

Answer: Option B

No explanation is given for this question. Let's Discuss on Board

The writing speed of fast storage oscilloscope is

A) 2000 cm/s B) 1000 cm/s C) 1500 cm/s D) 2500 cm/s

Discuss

Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

Resolution of a transducer depends on

A) Material of wire B) Length of wire C) Diameter of wire D) Excitation voltage

Discuss

Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

The use of storage oscilloscope
S1: Viewing rapidly changing non repetitive wave forms
S2: Recording average values

A) S1 is true & S2 is false B) S2 is true & S1 is false C) Both S1 & S2 are true D) Both S1 & S2 are false

Discuss

Answer & Solution

Answer: Option B

No explanation is given for this question. Let's Discuss on Board

Raising input impedance of pre amplifier reduces

A) Input current B) Output current C) Stray current D) Grid current

Discuss

Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

Bonded wire strain gauges are

A) Exclusively used for construction of transducers B) Exclusively used for stress analysis C) Used for both stress analysis and construction of transducer D) Pressure measurement

Discuss

Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

In wire wound strain gauges, the change in resistance is due to

A) Change in diameter of the wire B) Change in length of the wire C) Change in both length and diameter D) Change in resistivity

Discuss

Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

Isolation amplifiers are also called as

A) DC amplifier B) Output amplifier C) Inverting amplifier D) Iso-amps

Discuss

Answer & Solution

Answer: Option D

No explanation is given for this question. Let's Discuss on Board

A galvanometer in series with a high resistance is called ___________.

A) An ammeter B) A voltmeter C) A wattmeter D) None of the above

Discuss

Answer & Solution

Answer: Option B

No explanation is given for this question. Let's Discuss on Board