Digital Signal Processing Multiple Choice Questions and Answers

1 If M and N are the orders of numerator and denominator of rational system function respectively, then how many memory locations are required in direct form-II realization of that IIR filter?

A M+N+1

B M+N

C Min [M,N]

D Max [M,N]

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Answer:Max [M,N]

2 The basic elements of a flow graph are branches and nodes.

A True

B False

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Answer:True

3 Which of the following is true for the given signal flow graph?

Digital Signal Processing

A Two pole system

B Two zero system

C Two pole and two zero system

D None of the mentioned

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Answer:Two pole and two zero system

4 What are the nodes that replace the adders in the signal flow graphs?

A Source node

B Sink node

C Branch node

D Summing node

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Answer:Summing node

5 The output signal of a system is extracted at a sink node.

A True

B False

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Answer:True

6 If we reverse the directions of all branch transmittances and interchange the input and output in the flow graph, then the resulting structure is called as ______________

A Direct form-I

B Transposed form

C Direct form-II

D None of the mentioned

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Answer:Transposed form

7 What does the structure given below represents?

Digital Signal Processing

A Direct form-I

B Regular Direct form-II

C Transposed direct form-II

D None of the mentioned

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Answer:Transposed direct form-II

8 The structure shown below is known as ____________ Digital Signal Processing

A Parallel form structure

B Cascade structure

C Direct form

D None of the mentioned

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Answer:Parallel form structure

9 The state space or the internal description of the system still involves a relationship between the input and output signals, what are the additional set of variables it also involves?

A System variables

B Location variables

C State variables

D None of the mentioned

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