Test: Signal And System Processing

# Test: Signal And System Processing

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## 10 Questions MCQ Test Digital Signal Processing | Test: Signal And System Processing

Test: Signal And System Processing for Electrical Engineering (EE) 2023 is part of Digital Signal Processing preparation. The Test: Signal And System Processing questions and answers have been prepared according to the Electrical Engineering (EE) exam syllabus.The Test: Signal And System Processing MCQs are made for Electrical Engineering (EE) 2023 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Signal And System Processing below.
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Test: Signal And System Processing - Question 1

### Which of the following is common independent variable for speech signal, EEG and ECG?

Detailed Solution for Test: Signal And System Processing - Question 1

Explanation: Speech, EEG and ECG signals are the examples of information-bearing signals that evolve as functions of a single independent variable, namely, time.

Test: Signal And System Processing - Question 2

### Which of the following conditions made digital signal processing more advantageous over analog signal processing?

Detailed Solution for Test: Signal And System Processing - Question 2

Explanation: Digital programmable system allows flexibility in reconfiguring the DSP operations by just changing the program, as the digital signal is in the form of 1 and 0’s it is more accurate and it can be stored in magnetic tapes.

Test: Signal And System Processing - Question 3

### Which property does y(t)=x(1-t) exhibit?

Detailed Solution for Test: Signal And System Processing - Question 3

Explanation: First the signal x(t) is shifted by 1 to get x(1+t) and it is reflected to get x(1-t). So, it exhibits both time shifting and reflecting properties.

Test: Signal And System Processing - Question 4

If x(n)=(0,1,2,3,3,0,0,0) then x(2n) is:

Detailed Solution for Test: Signal And System Processing - Question 4

Explanation: Substitute n=0,1,2… in x(2n) and obtain the values from the given x(n).

Test: Signal And System Processing - Question 5

If x(n)=(0,0,1,2,3,4,0,0) then x(n-2) is:

Detailed Solution for Test: Signal And System Processing - Question 5

Explanation: The signal x(n) is shifted right by 2.

Test: Signal And System Processing - Question 6

If x(n)=(0,0,1,1,1,1,1,0) then x(3n+1) is:

Detailed Solution for Test: Signal And System Processing - Question 6

Explanation: First shift the given signal left by 1 and then time scale the obtained signal by 3.

Test: Signal And System Processing - Question 7

If a signal x(t) is processed through a system to obtain the signal (x(t)2), then the system is said to be:

Detailed Solution for Test: Signal And System Processing - Question 7

Explanation: Let the input signal be ‘t’. Then the output signal after passing through the system is y=t2 which is the equation of a parabola. So, the system is non-linear.

Test: Signal And System Processing - Question 8

What are the important block(s) required to process an input analog signal to get an output analog signal?

Detailed Solution for Test: Signal And System Processing - Question 8

Explanation: The input analog signal is converted into digital using A/D converter and passed through DSP and then converted back to analog using D/A converter.

Test: Signal And System Processing - Question 9

Which of the following block is not required in digital processing of an RADAR signal?

Detailed Solution for Test: Signal And System Processing - Question 9

Explanation: In the digital processing of the radar signal, the information extracted from the radar signal, such as the position of the aircraft and its speed, may simply be printed on a paper. So, there is no need of an D/A converter in this case.

Test: Signal And System Processing - Question 10

Which of the following wave is known as “amplitude modulated wave” of x(t)?

Detailed Solution for Test: Signal And System Processing - Question 10

Explanation: The multiplicative operation is often encountered in analog communication, where an audio frequency signal is multiplied by a high frequency sinusoid known as carrier. The resulting signal is known as “amplitude modulated wave”.

## Digital Signal Processing

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## Digital Signal Processing

3 videos|50 docs|54 tests