Digital Signal Processing Mock Test 1

10%

Question 1 of 10

1. The system described by the input-output equations y(n)=x(-n) is a causal system.

False

True

Question 1 of 10

Question 2 of 10

2. The system described by the input-output equations y(n)=x²(n) is a Non-linear system.

False

True

Question 2 of 10

Question 3 of 10

3. The system described by the input-output equation y(n)=nx(n)+bx³(n) is a __________

Identical system

Static system

Dynamic system

None of the mentioned

Question 3 of 10

Question 4 of 10

4. The discrete time function defined as u(n)=n for n≥0;u(n)=0 for n<0 is an _____________

Unit sample signal

Unit step signal

None of the mentioned

Unit ramp signal

Question 4 of 10

Question 5 of 10

5. If 'F' is the frequency of the analog signal, then what is the minimum sampling rate required to avoid aliasing?

Question 5 of 10

Question 6 of 10

6. The odd part of a signal x(t) is?

(1/2)*(x(t)-x(-t))

x(t)-x(-t)

(1/2)*(x(t)+x(-t))

x(t)+x(-t)

Question 6 of 10

Question 7 of 10

7. The cross correlation of two real finite energy sequences x(n) and y(n) is given as __________

\(r_{xy}(l)=\sum_{n=-\infty}^{\infty}x(n)y(n-l)\) where l=0,±1,±2,...

\(r_{xy}(l)=\sum_{n=-\infty}^{\infty}x(n)y(n-l)\) where -∞<l<∞

none of the mentioned

\(r_{xy}(l)=\sum_{n=0}^{\infty}x(n)y(n-l)\) where l=0,±1,±2,...

Question 7 of 10

Question 8 of 10

8. Which of the following wave is known as "amplitude modulated wave" of x(t)?

dx(t)/dt

x(t).y(t)

x(t)+y(t)

C.x(t) (where C is a constant)

Question 8 of 10

Question 9 of 10

9. The system described by the equation y(n)=ay(n-1)+b x(n) is a recursive system.

True

False

Question 9 of 10

Question 10 of 10

10. Zero-state response is also known as ____________

Free response

Natural response

Forced response

None of the mentioned

Question 10 of 10