Electronics and Communication Engineering (ECE) Exam  >  Electronics and Communication Engineering (ECE) Tests  >  GATE ECE (Electronics) Mock Test Series 2025  >  Test: Comparison of Amplifier Classes - Electronics and Communication Engineering (ECE) MCQ

Test: Comparison of Amplifier Classes - Electronics and Communication Engineering (ECE) MCQ


Test Description

10 Questions MCQ Test GATE ECE (Electronics) Mock Test Series 2025 - Test: Comparison of Amplifier Classes

Test: Comparison of Amplifier Classes for Electronics and Communication Engineering (ECE) 2024 is part of GATE ECE (Electronics) Mock Test Series 2025 preparation. The Test: Comparison of Amplifier Classes questions and answers have been prepared according to the Electronics and Communication Engineering (ECE) exam syllabus.The Test: Comparison of Amplifier Classes MCQs are made for Electronics and Communication Engineering (ECE) 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Comparison of Amplifier Classes below.
Solutions of Test: Comparison of Amplifier Classes questions in English are available as part of our GATE ECE (Electronics) Mock Test Series 2025 for Electronics and Communication Engineering (ECE) & Test: Comparison of Amplifier Classes solutions in Hindi for GATE ECE (Electronics) Mock Test Series 2025 course. Download more important topics, notes, lectures and mock test series for Electronics and Communication Engineering (ECE) Exam by signing up for free. Attempt Test: Comparison of Amplifier Classes | 10 questions in 30 minutes | Mock test for Electronics and Communication Engineering (ECE) preparation | Free important questions MCQ to study GATE ECE (Electronics) Mock Test Series 2025 for Electronics and Communication Engineering (ECE) Exam | Download free PDF with solutions
Test: Comparison of Amplifier Classes - Question 1

Which of the following amplifier class have the highest linearity and lowest distortion?

Detailed Solution for Test: Comparison of Amplifier Classes - Question 1

Class A amplifier has the highest linearity and the lowest distortion. The amplifying element is always conducting and close to the linear portion of its transconductance curve. The point where the device is almost off is not at a zero signal point and hence its distortions compared to other classes are less.

Test: Comparison of Amplifier Classes - Question 2

Which of the following letter is not used to represent a class?

Detailed Solution for Test: Comparison of Amplifier Classes - Question 2

There is no amplifier called Class I. There are only A, B, C, D, E/F, G, H, S.

1 Crore+ students have signed up on EduRev. Have you? Download the App
Test: Comparison of Amplifier Classes - Question 3

Which of the following amplifier cannot be used for audio frequency amplification?

Detailed Solution for Test: Comparison of Amplifier Classes - Question 3

Class C amplifier cannot be used for audio frequency amplifiers because of its high distortion.

Test: Comparison of Amplifier Classes - Question 4

Which of the following amplifier is designed to operate in digital pulses?

Detailed Solution for Test: Comparison of Amplifier Classes - Question 4

Class D amplifiers use a form of PWM to control the output devices. Conduction angle varies with the pulse width and doesn’t depend on the input directly. The analog signal is converted into a stream of pulses representing the signal using a modulation technique.

Test: Comparison of Amplifier Classes - Question 5

Which of the following class have a theoretical efficiency of 78.5%?

Detailed Solution for Test: Comparison of Amplifier Classes - Question 5

Class B amplifier has a theoretical efficiency of 78.5% which higher than Class A while Class D theoretically have efficiency of 100%.

Test: Comparison of Amplifier Classes - Question 6

Which of the following letter is not used to represent a class?

Detailed Solution for Test: Comparison of Amplifier Classes - Question 6

There is no amplifier called Class K. There are only A, B, C, D, E/F, G, H, S.

Test: Comparison of Amplifier Classes - Question 7

Which of the following class has the poorest linearity

Detailed Solution for Test: Comparison of Amplifier Classes - Question 7

Class C amplifiers have high efficiency but have the poorest linearity since they only take less than 180° oscillations. They are suitable for amplifying constant envelope signals.

Test: Comparison of Amplifier Classes - Question 8

Which of the following amplifier is less efficient than others?

Detailed Solution for Test: Comparison of Amplifier Classes - Question 8

Class A amplifiers are the least efficient of all. A maximum of 25% theoretical efficiency is obtainable, 50% for when using transformer or with induced coupling. This wastes power, as well as increases the cost and requires higher rated output devices.

Test: Comparison of Amplifier Classes - Question 9

Which of the following class have a theoretical efficiency of 50%?

Detailed Solution for Test: Comparison of Amplifier Classes - Question 9

Class A amplifier has a theoretical efficiency of 50%. 50% of the energy supplied is a waste.

Test: Comparison of Amplifier Classes - Question 10

Which of the following amplifier is most suited for making tuning circuits?

Detailed Solution for Test: Comparison of Amplifier Classes - Question 10

Class C is the most suitable amplifier type for tuning circuit and radio frequency amplification. It employs filtering and hence the final signal is completely acceptable. Class C amplifiers are quite efficient than other types.

25 docs|263 tests
Information about Test: Comparison of Amplifier Classes Page
In this test you can find the Exam questions for Test: Comparison of Amplifier Classes solved & explained in the simplest way possible. Besides giving Questions and answers for Test: Comparison of Amplifier Classes, EduRev gives you an ample number of Online tests for practice

Top Courses for Electronics and Communication Engineering (ECE)

Download as PDF

Top Courses for Electronics and Communication Engineering (ECE)