SIGNAL AND SYSTEM MCQS SET 02

SIGNAL AND SYSTEM MCQS SET 02

1)   Which block of the discrete time systems requires memory in order to store the previous input?
a. Adder           b. Signal Multiplier     c. Unit Delay       d. Unit Advance
ANSWER: (c)Unit Delay
 

2)   Which type/s of discrete-time system do/does not exhibit the necessity of any feedback?
a. Recursive Systems          b. Non-recursive Systems
c. Both a & b                          d. None of the above
ANSWER:  (b) Non-recursive Systems
 

3)   Which among the following belongs to the category of non-recursive systems?
a. Causal FIR Systems                    b. Non-causal FIR Systems
c. Causal IIR Systems                    d. Non-causal IIR Systems
ANSWER:  (a) Causal FIR Systems
 

4)   Recursive Systems are basically characterized by the dependency of its output on _______
a. Present input           b. Past input        c. Previous outputs
d. All of the above
ANSWER: (d) All of the above
 

5)   What does the term y(-1) indicate especially in an equation that represents the behaviour of the causal system?
a. initial condition of the system
b. negative initial condition of the system
c. negative feedback condition of the system
d. response of the system to its initial input
ANSWER:  (a) initial condition of the system
 

6)   Which type of system response to its input represents the zero value of its initial condition?
a. Zero state response            b. Zero input response
c. Total response                    d. Natural response
ANSWER: (a) Zero state response
 

7)   Which is/are the essential condition/s to get satisfied for a recursive system to be linear?
a. Zero state response should be linear
b. Principle of Superposition should be applicable to zero input response
c. Total Response of the system should be addition of zero state & zero input responses
d. All of the above
ANSWER: (d)  All of the above
 

8)   Which among the following operations is/are not involved /associated with the computation process of linear convolution?
a. Folding Operation                     b. Shifting Operation
c. Multiplication Operation               d. Integration Operation
ANSWER: (d) Integration Operation
 

9)   A LTI system is said to be initially relaxed system only if ____
a. Zero input produces zero output
b. Zero input produces non-zero output
c. Zero input produces an output equal to unity
d. None of the above
ANSWER:(a)  Zero input produces zero output
 

10)   What are the number of samples present in an impulse response called as?
a. string         b. array          c. length        d. element
ANSWER: (c) length