Surprise Quiz - II

Surprise Quiz - II

University

10 Qs

quiz-placeholder

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Surprise Quiz - II

Surprise Quiz - II

Assessment

Quiz

Engineering

University

Hard

Created by

Mangalam H

FREE Resource

10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The modulation index of FM is given by β =_______.

fm /fc

fm /Δf

Δf /fm

fc /fm

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The amount of frequency deviation in FM signal depends on _________.

Carrier frequency

Modulating frequency

Transmitter amplifier

Amplitude of the modulating signal

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the modulation index in an FM signal when the modulating frequency is 250Hz and maximum frequency deviation is 5KHz?

10

20

35

75

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Outline the basic difference between NBFM and AM signal.

Bandwidth

Number of Side bands

Frequency Deviation

Algebraic sign reversal for the lower side frequency

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Armstrong modulator generates FM using ______.

Direct method

Indirect method

Varactor diode

Reactance FET

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the maximum frequency deviation allowed in commercial FM broadcasting?

100 KHz

75KHz

15KHz

120KHz

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Identify the standard intermediate frequency used in super heterodyne FM receiver.

10.7 MHz

455 KHz

50 MHz

580 KHz

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