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Digital Signal Processing Questions and Answers | Digital Signal Processing MCQs

(1) What is the largest floating point number that can be represented using a 32-bit word?
[A] 3*1038
[B] 1.7*1038
[C] 0.2*1038
[D] 0.3*1038
Answer: 1.7*1038
(2) If E=0 and M=0, then which of the following statement is true about X?
[A] Not a number
[B] Infinity
[C] Defined
[D] Zero
Answer: Zero

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(3) The truncation error for the sign magnitude representation is symmetric about zero.
[A] True
[B] False
Answer: True
(4) What is the range of round-off error for a foxed point representation?
[A] [-0.5(2-b+2-bm), 0.5(2-b+2-bm)]
[B] [0, (2-b+2-bm)]
[C] [0, (2-b-2-bm)]
[D] [-0.5(2-b-2-bm), 0.5(2-b-2-bm-bm)]
Answer: [-0.5(2-b-2-bm), 0.5(2-b-2-bm-bm)]
(5) What is the 2’s complement of (1100)2?
[A] (0100)2
[B] (0011)2
[C] (0111)2
[D] (1100)2
Answer: (0100)2
(6) The binary digit b-A is called as ______________
[A] LSB
[B] Total value
[C] MSB
[D] None of the mentioned
Answer: MSB
(7) If E=255 and M≠0, then which of the following statement is true about X?
[A] Not a number
[B] Infinity
[C] Defined
[D] Zero
Answer: Not a number
(8) When the frequency band is selected we can specify the sampling rate and the characteristics of the pre filter, which is also called as __________ filter.
[A] Analog filter
[B] Anti aliasing filter
[C] Analog & Anti aliasing filter
[D] None of the mentioned
Answer: Anti aliasing filter
(9) What are the main characteristics of Anti aliasing filter?
[A] Ensures that bandwidth of signal to be sampled is limited to frequency range
[B] To limit the additive noise spectrum and other interference, which corrupts the signal
[C] All of the mentioned
[D] None of the mentioned
Answer: All of the mentioned
(10) In general, a digital system designer has better control of tolerances in a digital signal processing system than an analog system designer who is designing an equivalent analog system.
[A] True
[B] False
Answer: True

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