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Test: Classification of Oscillators - UPSC MCQ


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10 Questions MCQ Test - Test: Classification of Oscillators

Test: Classification of Oscillators for UPSC 2024 is part of UPSC preparation. The Test: Classification of Oscillators questions and answers have been prepared according to the UPSC exam syllabus.The Test: Classification of Oscillators MCQs are made for UPSC 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Classification of Oscillators below.
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Test: Classification of Oscillators - Question 1

Frequency of oscillation of alternator is ___________

Detailed Solution for Test: Classification of Oscillators - Question 1

Alternator frequency depends upon the speed of rotation and the number of pairs of rotor poles. When connected to a power system, alternators are synchronized with the grid frequencies which is either 50/60Hz depending on the geographical location.

Test: Classification of Oscillators - Question 2

Damped oscillations are those oscillations which ___________ continuously with time.

Detailed Solution for Test: Classification of Oscillators - Question 2

Damped oscillations are those oscillations which decrease or increases continuously with time.

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Test: Classification of Oscillators - Question 3

If oscillation amplitude increases continuously it is called ___________

Detailed Solution for Test: Classification of Oscillators - Question 3

If oscillation amplitude increases continuously it is called overdamped oscillation.

Test: Classification of Oscillators - Question 4

Mark-to-space ratio is related with ___________

Detailed Solution for Test: Classification of Oscillators - Question 4

MSR or Mark-to-space ratio is related with saw-tooth generator. It is the ratio of width of pulse to time between pulses.

Test: Classification of Oscillators - Question 5

The time between one pulse to another is known as ___________

Detailed Solution for Test: Classification of Oscillators - Question 5

The time between one pulse to another is known as PRT (Power Repetition Time), other abbreviations denote PRF (Power Repetition Frequency), MSR (Mark-to-Space ratio).

Test: Classification of Oscillators - Question 6

Oscillation can be classified as damped and sustained on the basis of varying.

Detailed Solution for Test: Classification of Oscillators - Question 6

Oscillation can be classified as damped and sustained on the basis of varying amplitude.

Test: Classification of Oscillators - Question 7

If the oscillation amplitude decreases continuously it is called ___________

Detailed Solution for Test: Classification of Oscillators - Question 7

If the oscillation amplitude decreases continuously it is called underdamped oscillation.

Test: Classification of Oscillators - Question 8

Which of the following is not an example of sinusoidal oscillator?

Detailed Solution for Test: Classification of Oscillators - Question 8

A blocking oscillator is a non-sinusoidal oscillator. It produces a free running signal-square shaped and requires only a resistor, transformer and one amplifying element to work. The transistor is blocked off for most of the duty cycle, producing periodic pulses.

Test: Classification of Oscillators - Question 9

The ratio of width of pulse to time between pulses are called ___________

Detailed Solution for Test: Classification of Oscillators - Question 9

The ratio of the width of pulse to time between pulses is called MSR (Mark-to-Space ratio). Other abbreviation denotes PSRR (Power Supply Rejection Ratio), PSR (Power Supply Rejection), CMRR (Common Mode Rejection Ratio).

Test: Classification of Oscillators - Question 10

The inverse of pulse repetition time gives _____________

Detailed Solution for Test: Classification of Oscillators - Question 10

The inverse of pulse repetition time gives the PRF- pulse repetition frequency. MSR means mark to space ratio, PRT means power repetition time, PSR is power supply rejection.

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