☰
GkSeries.com

Digital Signal Processing Questions and Answers | Digital Signal Processing MCQs

Free download in PDF Digital Signal Processing Multiple Choice Questions and Answers for competitive exams. These short objective type questions with answers are very important for Board exams as well as competitive exams like UPSC, NDA, SSC etc. These short solved questions or quizzes are provided by Gkseries./p>

Go To Download Page
(1) Which of the following defines the rectangular window function of length M-1?
[A] 
w(n)=1, n=0,1,2...M-1
    =0, else where
[B] 
w(n)=1, n=0,1,2...M-1
    =-1, else where
[C] 
w(n)=0, n=0,1,2...M-1
    =1, else where
[D] None of the mentioned
Answer: 
w(n)=1, n=0,1,2...M-1
    =0, else where
(2) The multiplication of the window function w(n) with h(n) is equivalent to the multiplication of H(w) and W(w).
[A] True
[B] False
Answer: False
(3) What is the width of the main lobe of the frequency response of a rectangular window of length M-1?
[A] π/M
[B] 2π/M
[C] 4π/M
[D] 8π/M
Answer: 4π/M
(4) The width of each side lobes decreases with an increase in M.
[A] True
[B] False
Answer: True
(5) With an increase in the value of M, the height of each side lobe ____________
[A] Do not vary
[B] Does not depend on value of M
[C] Decreases
[D] Increases
Answer: Increases
(6) As M is increased, W(ω) becomes wider and the smoothening produced by the W(ω) is increased.
[A] True
[B] False
Answer: False
(7) The width of each side lobes decreases with an decrease in M.
[A] True
[B] False
Answer: False
(8) What is the approximate transition width of main lobe of a Hamming window?
[A] 4π/M
[B] 8π/M
[C] 12π/M
[D] 2π/M
Answer: 8π/M
(9) What is the peak side lobe (in dB) for a rectangular window?
[A] -13
[B] -27
[C] -32
[D] -58
Answer: -13
(10) What is the peak side lobe (in dB) for a Hanning window?
[A] -13
[B] -27
[C] -32
[D] -58
Answer: -32
Click Here to Read more questions