Explore topic-wise MCQs in Digital Signal Processing.

This section includes 17 Mcqs, each offering curated multiple-choice questions to sharpen your Digital Signal Processing knowledge and support exam preparation. Choose a topic below to get started.

1.

What is the necessary and sufficient condition for a second order filter that no zero-input overflow limit cycles occur?

A. |a1|+|a2|=1
B. |a1|+|a2|>1
C. |a1|+|a2|<1
D. None of the mentioned
Answer» D. None of the mentioned
Discussion
2.

The limit cycle mode with zero input, which occurs as a result of rounding the multiplications, corresponds to an equivalent second order system with poles at z=±1.

A. True
B. False
Answer» B. False
Discussion
3.

What is the dead band of a single pole filter with a pole at 1/2 and represented by 4 bits?

A. (-1/2,1/2)
B. (-1/4,1/4)
C. (-1/8,1/8)
D. (-1/16,1/16)
Answer» E.
Discussion
4.

Which of the following expressions define the dead band for a single-pole filter?

A. |v(n-1)| ≥ \(\frac{(1/2).2^{-b}}{1+|a|}\)
B. |v(n-1)| ≥ \(\frac{(1/2).2^{-b}}{1-|a|}\)
C. |v(n-1)| ≤ \(\frac{(1/2).2^{-b}}{1-|a|}\)
D. None of the mentioned
Answer» D. None of the mentioned
Discussion
5.

The oscillations in the output of the recursive system are called as ‘limit cycles’.

A. True
B. False
Answer» B. False
Discussion
6.

WHAT_IS_THE_DEAD_BAND_OF_A_SINGLE_POLE_FILTER_WITH_A_POLE_AT_1/2_AND_REPRESENTED_BY_4_BITS??$

A. (-1/2,1/2)
B. (-1/4,1/4)
C. (-1/8,1/8)
D. (-1/16,1/16)
Answer» E.
Discussion
7.

What is the necessary and sufficient condition for a second order filter that no zero-input overflow limit cycles occur?$

A. |a1|+|a2|=1
B. |a1|+|a2|>1
C. |a1|+|a2|<1
D. None of the mentioned
Answer» D. None of the mentioned
Discussion
8.

The_limit_cycle_mode_with_zero_input,_which_occurs_as_a_result_of_rounding_the_multiplications,_corresponds_to_an_equivalent_second_order_system_with_poles_at_z=±1.$#

A. True
B. False
Answer» B. False
Discussion
9.

What is the dead band of a single pole filter with a pole at 3/4 and represented by 4 bits?

A. (-1/2,1/2)
B. (-1/8,1/8)
C. (-1/4,1/4)
D. (-1/16,1/16)
Answer» C. (-1/4,1/4)
Discussion
10.

An effective remedy for curing the problem of overflow oscillations is to modify the adder characteristic.

A. True
B. False
Answer» B. False
Discussion
11.

Which of the following is true when the response of the single pole filter is in the limit cycle?

A. Actual non-linear system acts as an equivalent non-linear system
B. Actual non-linear system acts as an equivalent linear system
C. Actual linear system acts as an equivalent non-linear system
D. Actual linear system acts as an equivalent linear system
Answer» C. Actual linear system acts as an equivalent non-linear system
Discussion
12.

Zero input limit cycles occur from non-zero initial conditions with the input x(n)=0.

A. True
B. False
Answer» B. False
Discussion
13.

What is the range of values called as to which the amplitudes of the output during a limit cycle ae confined to?

A. Stop band
B. Pass band
C. Live band
D. Dead band
Answer» E.
Discussion
14.

Limit cycles in the recursive are directly attributable to which of the following?

A. Round-off errors in multiplication
B. Overflow errors in addition
C. Both of the mentioned
D. None of the mentioned
Answer» D. None of the mentioned
Discussion
15.

The oscillations in the output of the recursive system are called as ‘limit cycles’.$

A. True
B. False
Answer» B. False
Discussion
16.

In recursive systems, which of the following is caused because of the nonlinearities due to the finite-precision arithmetic operations?

A. Periodic oscillations in the input
B. Non-Periodic oscillations in the input
C. Non-Periodic oscillations in the output
D. Periodic oscillations in the output
Answer» E.
Discussion
17.

The quantization inherent in the finite precision arithmetic operations render the system linear.

A. True
B. False
Answer» C.
Discussion