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GATE ECE (Electronics) Test: Distortion in Amplifier Free Online Test 2026


MCQ Practice Test & Solutions: Test: Distortion in Amplifier (10 Questions)

You can prepare effectively for Electronics and Communication Engineering (ECE) GATE ECE (Electronics) Mock Test Series 2027 with this dedicated MCQ Practice Test (available with solutions) on the important topic of "Test: Distortion in Amplifier". These 10 questions have been designed by the experts with the latest curriculum of Electronics and Communication Engineering (ECE) 2026, to help you master the concept.

Test Highlights:

  • - Format: Multiple Choice Questions (MCQ)
  • - Duration: 30 minutes
  • - Number of Questions: 10

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Test: Distortion in Amplifier - Question 1

The problem in which output signal is not an exact reproduction of output signal in the amplifier is collectively called __________

Detailed Solution: Question 1

Distortion refers to any alteration or deviation in the output signal of an amplifier compared to the input signal. It can occur due to various reasons, such as nonlinearities in the amplifier, clipping, or other imperfections in the circuit. Distortion is a collective term for any unwanted changes in the waveform of the signal.

Test: Distortion in Amplifier - Question 2

Amplitude distortion is due to ___________

Detailed Solution: Question 2

If we incorrectly design our amplifier and a change in Q-point occurs, then distortion in the amplifier is observed. Also, if we apply too large an input signal, it may end up causing distortion.

Test: Distortion in Amplifier - Question 3

Flat tops in the output signal is due to ___________

Detailed Solution: Question 3

If amplifier output is beyond maximum value it cannot display voltage further than maximum value. This constitute clipping and creates flat tops in the output wave. This is due to amplitude distortion in the amplifier.

Test: Distortion in Amplifier - Question 4

Phase distortion can also be called as _________

Detailed Solution: Question 4

Another name for phase distortion is delay distortion. It is called so because it associated with a delay.

Test: Distortion in Amplifier - Question 5

Harmonic distortion is caused by nonlinearities of _________

Detailed Solution: Question 5

Harmonic distortion is caused by Active elements in the circuit.

Test: Distortion in Amplifier - Question 6

Which one of the following is not a distortion type that exist either separately or simultaneously in amplifiers?

Detailed Solution: Question 6

Distortion in Amplifiers:

  1. The application of a sinusoidal signal to the input of an ideal Class A amplifier will result in a sinusoidal output wave.
  2. Generally, the output waveform is not an exact replica of the input signal waveform because of various types of distortion may arise, either from the inherent nonlinearity in the characteristics of transistors or tubes or from the influence of the associated circuit.
  3. The types of circuits that may exist either separately or simultaneously are called nonlinear distortion, frequency distortion, and delay distortion.

Linear distortion is not a distortion type that exists either separately or simultaneously in amplifiers.

Test: Distortion in Amplifier - Question 7

If output of amplifier exceeds maximum allowable value ___________ occurs in output waveform.

Detailed Solution: Question 7

If amplifier output is beyond the maximum value it cannot display voltage further than maximum value. This constitute clipping. This maximum output value depends on the source voltage(VCC) of the amplifier, and can’t exceed the value.

Test: Distortion in Amplifier - Question 8

Frequency distortion occurs when _______ is varied with frequency.

Detailed Solution: Question 8

Due to abnormalities of transistor level of amplification varies with a frequency which constitute frequency distortion.

Test: Distortion in Amplifier - Question 9

The distortion caused by multiple frequencies in output is called _________

Detailed Solution: Question 9

The distortion happened due to the presence of harmonic frequencies in output is known as harmonic distortion.

Test: Distortion in Amplifier - Question 10

Which of the following components in a transistor circuit is really responsible for harmonic distortion?

Detailed Solution: Question 10

Harmonic distortion is caused by Active elements in the circuit. Hence transistor is causing harmonic distortion.

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