Test: Communication System- 6

# Test: Communication System- 6

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## 25 Questions MCQ Test Basic Electronics Engineering for SSC JE (Technical) | Test: Communication System- 6

Test: Communication System- 6 for Electrical Engineering (EE) 2022 is part of Basic Electronics Engineering for SSC JE (Technical) preparation. The Test: Communication System- 6 questions and answers have been prepared according to the Electrical Engineering (EE) exam syllabus.The Test: Communication System- 6 MCQs are made for Electrical Engineering (EE) 2022 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Communication System- 6 below.
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Test: Communication System- 6 - Question 1

### Which one of the following modulation techniques is the most efficient for pulse telemetry

Test: Communication System- 6 - Question 2

### The Nyquist sampling rate for the signal  is given by

Test: Communication System- 6 - Question 3

### The Nyquist sampling interval, for the signal sin c(700t) + sin c(500t) is

Test: Communication System- 6 - Question 4

The Nyquist rate for the signal x(t) = 2 cos (2000 π t) cos (5000 π t), is

Test: Communication System- 6 - Question 5

A signal occupies a band 5 kHz to 10 kHz. For proper error free reconstruction at what rate it should be sampled

Test: Communication System- 6 - Question 6

Which one of the following pulse communication systems is digital

Test: Communication System- 6 - Question 7

A signal is sampled at 8 kHz and is quantized using 8-bit uniform quantizer. Assuming SNRqfor a sinusoidal signal, the correct statement for PCM signal with a bit rate of R is

Test: Communication System- 6 - Question 8

What are the three steps in generating PCM in the correct sequence

Test: Communication System- 6 - Question 9

In a PCM system, if the code word length is increased from 6 to 8 bits, the signal to quantization noise ratio improves by the factor

Test: Communication System- 6 - Question 10

In a PCM system each quantization level is encoded into 8 bits. The signal to quantisation noise ratio is equal to

Test: Communication System- 6 - Question 11

If the number of bits per sample in a PCM system is increased, the improvement in signal-to-quantization noise ratio will be

Test: Communication System- 6 - Question 12

The main factor that determines the accuracy of a reconstructed PCM signal is the

Test: Communication System- 6 - Question 13

The quantization noise of a PCM system depends on

Test: Communication System- 6 - Question 14

Companding is used

Test: Communication System- 6 - Question 15

Companding is used in PCM to

Test: Communication System- 6 - Question 16

Which of the following pulse modulations are digital

1. PCM

2. Differential PCM

3. PWM

Select the correct answer using the codes given below:

Test: Communication System- 6 - Question 17

"Slope overload" occurs in delta modulation when the

Test: Communication System- 6 - Question 18

To overcome slope overload problem, which type of integrator is used in delta modulation

Test: Communication System- 6 - Question 19

In delta modulation, the slope overload distortion can be reduced by

Test: Communication System- 6 - Question 20

Which one of the following modulation technique is most affected by noise

Test: Communication System- 6 - Question 21

In case of data transmission, which one of the following systems will give the maximum probability error

Test: Communication System- 6 - Question 22

If S represents the carrier synchronization atthe receiver and r represents the bandwidth efficiency, then the correct statement for the coherent binary PSK is

Test: Communication System- 6 - Question 23

If the probability of a message is 1/4, then the information in bits is

Test: Communication System- 6 - Question 24

The capacity of a channel is given by the

Test: Communication System- 6 - Question 25

At a given probability of error, binary coherent FSK is inferior to binary coherent PSK by

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