original N point sequence.This algorithm is called DIT because the sequence x(n) is often splitted into smaller sub- sequences. d. All the four are correct, 30)Â Â Â The direct form II for realisation involves, 1) The realisation of transfer function into two parts What is the process of reducing the sampling rate by a factor D? Question -9: Mention function used for interpolation and decimation in MATLAB. Before a) Hamming window c. High 34.Which of the following windows has a time domain sequence h(n)=0.5( 1 −cos 2 πn/ a) Sub band coding c) F/ b. a) Sampling b) Differentiating c) Integrating d) None of the mentioned 11. c. z = 2esT b. 3) Product of two transfer functions a) True b. c) I.D a. b) - b) 8π/M b) Increase with increase in M Decimation is a term that historically means the removal of every tenth one. 27.How does the frequency of oscillations in the pass band of a low pass filter varies frequency response as shown in the figure? d) (M+1)/2 when M is odd and M/2 when M is even d) Signal distortion & Quantization effects, Which of the following use quadrature mirror filters? d) F/2D Irrespective of the format of the question, test takers should concentrate on multiple choice questions a lot. x(n) and output y(n)? 14.Which of the following defines the rectangular window function of length M-1? Answer Key 1.Management information systems (MIS) 1. create and share documents that support day-today office activities 2. process business transactions (e.g., time cards, payments, orders, etc.) Digital to analog conversion with the corresponding bandwidths of the signals. Constant gain in passband d) None of the mentioned, There is no requirement to process the various signals at different rates commensurate a. c. Ability to convert into discrete signal b) Digital filter banks Q8. That's because we can combine the interpolation filter LPFM and the decimation filter LPFD into a single filter, shown as LPFM/D in Figure 10-7(b). a) (M-1)/2 when M is even and M/2 when M is odd 37)Â Â Â Decimation is a process in which the sampling rate is __________. b. stable a) True c) After. a) True d. Split and combine algorithm, 1) DFT I am Sasmita . a. enhanced b. stable c. reduced d. unpredictable. b) Broadening effects Program sequences b) False, Which of the following methods are used in sampling rate conversion of a digital signal? Accounting MCQ Questions and answers with easy and logical explanations. d. Log2 N/2 stages, 17)Â Â Â The transformations are required for, 1) Analysis in time or frequency domain d) None of the mentioned, The lower and upper limits on the convolution sum reflect the causality and finite 3) Low pass filters c. reduced This is done in such a way that the rounded off number is as close to the original unquantized number as possible. This factor multiplies the sampling interval or, equivalently, divides the sampling rate. a) y(n)=∑M+ 1 k= 0 bkx(n+k) =0,elsewhere 3) Easier operations b. c. Designing of analog filter in digital domain and transforming into analog domain 2) Modulation b) w(n)=1, n=0,1,2...M- d) None of the mentioned The zeros lie in left half of the s plane d. All the four are correct. a) zM+1.H(z-1)=±H(z) a) (M-1)/2 when M is odd and M/2 when M is even following linear-phase FIR filter? b. b) h(n) symmetric and M even d) All of the above . c) (M+1)/2 when M is even and M/2 when M is odd b) Quantization effects Even and odd samples 4) Addition of two transfer functions, a. The gist of these two algorithms is that we break up the signal in either time and frequency domains and calculate the DFTs for each and then add the results up. 22)Â Â Â The anti causal sequences have ______ components in the left hand sequences. 33.The large side lobes of W(ω) results in which of the following undesirable effects? d. Periodic continuous signals, ANSWER:(b) Â Aperiodic Discrete time signals, 10)Â Â Â The transforming relations performed by DTFT are, 1) Linearity c. 1 and 4 are correct a) Narrow band filters c) Decimation What is the number of filter coefficients that specify the frequency response for h(n) I am an M.Tech in Electronics & Telecommunication Engineering. = 0, n â¥ 1, ANSWER: (b) Î´(n) = 1, n = 0 Questions and answers - MCQ with explanation on Computer Science subjects like System Architecture, Introduction to Management, Math For Computer Science, DBMS, C Programming, System Analysis and Design, Data Structure and Algorithm Analysis, OOP and Java, Client Server Application Development, Data Communication and Computer Networks, OS, MIS, Software Engineering, AI, Web Technology and â¦ Nowadays, most of the competitive examinations are in online mode. c) Ringing effects c) (M+1)/2 when M is even and M/2 when M is odd a) Circling effects c. 1 and 3 are correct b. MCQs. c. Upper higher and lower spectrum Periodic Discrete time signals Working of Decimation Filter A sinc filter is an idealized filter that removes all frequency components above a given cutoff frequency, without affecting lower frequencies, 94. d) D/A convertor, A/D convertor & Performing entirely in digital domain, Which of the following is the advantage of sampling rate conversion by converting the C. Designing of filter at each stage. 10.If Fx and Fy are the sampling rates of the input and output signals respectively, then what a) w(n)=1, n=0,1,2...M- Mrs. Osbornâs APWH Class QUESTIONS OF PERIODIZATION This era includes only 300 years, but some profound and long-lasting changes occurred. b. Q10. b) False, What is the value of h(M-1/2) if the unit sample response is anti-symmetric? 37) Decimation is a process in which the sampling rate is _____. The idea is to break the N point sequence into two sequences, the DFTs of which can be combined to give the DFt of the. anti-symmetric? d. All the four are correct. The zeros lie in right half of the s plane 1)Â Â Â The interface between an analog signal and a digital processor is, a. D/A converter b) False, The roots of the equation H(z) must occur in, If the unit sample response h(n) of the filter is real, complex valued roots need not B. do not adopt any feedback Before b. 3) Time series of sequence of quantities 13.The anti-symmetric condition is not used in the design of low pass linear phase FIR a) True c) reduced. 1 and 2 are correct This list is mainly about Multiple Choice Questions (MCQs) on DC Machines. d. None of the above, ANSWER: (a) The bandwidth occupied beyond the Nyquist Bandwidth of the filter, 1) Samples of a continuous signal 9. a) True 12.What is the process of increasing the sampling rate by a factor I? 4) Multipliers in the feedback paths are the negatives of the denominator coefficients, a. Decimation-In-Time algorithm is used to calculate the DFT of a N point sequence. Electronics and Communication Engineering Questions and Answers. ANSWER:(c) reduced. d) None of the mentioned The sampling rate conversion can be as shown in the figure below. b) False 39)Â Â Â Which units are generally involved in Multiply and Accumulate (MAC)? McQ is a 1974 American neo-noir action crime film directed by John Sturges, starring John Wayne filmed in Panavision.The film made extensive use of Seattle locations. b) Hanning window 2 and 4 are correct 1, 2 and 3 are correct c. Both convert analog signal to digital signal b. b. Î´(n) = 1, n = 0 signal into analog signal? a) Sampling b) F/2D M− 1 )? 13.What is the folding frequency for the aliased version of x(n) with sampling rate F? c. Pick-up node 1, 2 and 3 are correct d) Blackman window = 0, n â  1 Multi-rate processing and sample rate conversion, or interpolation and decimation as they re known, are a clever digital signal processing (DSP) techniques that broadband and wireless design engineers can employ during the system design process. 0 5 10 15 20-1-0.5 0 0.5 1 n x(n) (a)The 23-point DFT of x(n) is computed. d. MAC, ANSWER: (a) Data Address Generators (DAGs), Hi! d. All the four are correct. 2) Helps in quantization b. Analog signals a) - d. All the four are correct, 1) Relates the conditions in time domain and frequency domain a) Before. c) h(n) anti-symmetric and M odd Q9.- What is interpolation and decimation? c) Decimation To practice multiple choice questions in all areas of Digital Signal Processing, here is complete set of 1000+ Multiple Choice Questions and Answers. c) Sampling rate conversion Data Address Generators (DAGs) This set of multiple-choice questions â MCQ on data mining includes collections of MCQ questions on fundamentals of data mining techniques. Original sequence values =-1,elsewhere b. range of frequency for which the z transform exists b) Decimation c) Either interpolation or decimation d) None of the mentioned 10. The DFT coe cients are denoted X(k). c. 2 and 3 are correct Basically, rounding is the process of reducing the size of a binary number to some desirable finite size. =1, else where b) (M-1)/2 when M is odd and M/2 when M is even Decimation-In-Frequency It is a popular form of FFT algorithm. a) Decrease with increase in M c) Kaiser window 2) Quantization 4) Used for band pass filters having high resonant frequencies, 28)Â Â Â The filter that may not be realized by approximation of derivatives techniques are, 1) Band pass filters d. Unpredictable. 2) IDFT a. enhanced c) Band pass c) F/4D 3) The number of zeros is the product of poles of individual components b) Hanning window b. - Published on 26 Nov 15 c. Impulse signals A. Computation of decimation/interpolation factor for each stage. 29.Which of the following window is used in the design of a low pass filter to have a Accurately sketch jX(k)jfor 0 k N 1. To what value should the bandwidth of x(n) has to be reduced in order to avoid aliasing? The AMC MCQ examination is a computer-administered examination. These short solved questions or quizzes are provided by Gkseries. Decimation is a process in which the sampling rate is _____ a) enhanced. c. Modulator c) w(n)=0, n=0,1,2...M- c. Linear Phase Response 15.Which process has a block diagram as shown in the figure below? Ans10. a) Sampling b) Normalizing c) Sampling rate conversion d) None of the mentioned; There is no requirement to process the various signals at different rates commensurate with â¦ 25.What is the peak side lobe (in dB) for a rectangular window? C. are recursive 36)Â Â Â How is the sensitivity of filter coefficient quantization for FIR filters? c. Aliasing effect 1 and 2 are correct Accounting MCQ is important for exams like CA, CS, CMA, CPA, CFA, UPSC, NET, Banking and other accounts department exam. Positive following relation is true? Read More. a) D/A convertor and A/D convertor 1, 2 and 3 are correct c. range of frequency for which the signal gets transmitted b) False c) New sampling rate can be arbitrarily selected a) True The bandwidth occupied beyond the Nyquist Bandwidth of the filter c) Remains constant with increase in M d. Designing of digital filter in digital domain and transforming into analog domain, ANSWER: (b) Designing of digital filter in analog domain and transforming into digital domain, 26)Â Â Â For a system function H(s) to be stable, a. What is the process of converting a signal from a given rate to a different rate? c) - a) F/D d) None of the mentioned a) Low pass 3) Shifting 14. 4) Direct inversion, a. d) - c. Barrel Shifter b) Trans-multiplexer, Which of the following is the difference equation of the FIR filter of length M, input Positive and negative values 2Log2 N stages a. Adder 24.What is the approximate transition width of main lobe of a Hamming window? c. Aperiodic continuous signals 2) Used for band pass filters having smaller resonant frequencies d. All of the above. d. Quantization, 3)Â Â Â Telegraph signals are examples of, a. Which of the following is correct in uniform quantization process ______ A. a) True occur in complex conjugate pairs. c. 3 and 4 are correct d) None of these . d. Pulse train, 4)Â Â Â As compared to the analog systems, the digital processing of signals allow, 1) Programmable operations b) F/4D 38)Â Â Â Anti-imaging filter with cut-off frequency Ïc = Ï/ I is specifically used _______ upsampling process for the removal of unwanted images. b. c) y(n)=∑M− 1 k= 0 bkx(n−k) c. Both a and b ElectronicsPost.com is a participant in the Amazon Services LLC Associates Program, and we get a commission on purchases made through our links. 3) Factoring the numerator and denominator polynomials We have taken an in-depth look into both of these algorithms in this Digital Signal Processing course. This requires â¢ MÎ½1 complex multiplications â¢ MÎ½1 complex additions After the radix-2 decimation in time stages, we need to compute the DFT of 3Î½2 point sequences. b. Pick-off node 10.- Difference between DFT and DTFT. a) 0 b. 1, 2 and 3 are correct signal into analog signal? a) F/D d. All the four are correct, 31)Â Â Â The cascade realisation of IIR systems involves, 1) The transfer function broken into product of transfer functions â¢ a clinical examination, testing clinical and communication skills, of three to four hours duration, which is administered on a single afternoon or morning. d. The poles lie in right half of the s plane, ANSWER: (c) The poles lie in left half of the s plane, 27)Â Â Â IIR filter design by approximation of derivatives has the limitations, 1) Used only for transforming analog high pass filters c. Split and rule algorithm b) 1. c) -h(M-1-n) n=0,1,2...M- b. Divide and rule algorithm 12.The anti-symmetric condition with M even is not used in the design of which of the At the time of c. After d. All of the above. b) Normalizing c. 1, 2 and 4 are correct a) 4π/M Ability to translate into frequency domain b) y(n)=∑M+ 1 k= 0 bkx(n−k) = 0, n â  1, a. d) None of the mentioned Step size varies according to the values â¦ Marketing management is _____. b) z-(M+1).H(z-1)=±H(z) 30.Which of the following window is used in the design of a low pass filter to have a 2) Multipliers in the feedback paths are the positives of the denominator coefficients 32.If the value of M increases then the main lobe in the frequency response of the c) - d) None of the mentioned The performance of the filter or device a) Sampling rate conversion 2) A time series which is a domain of integers d) Blackman window. b. A/D converter Ability to resolve different frequency components from input signal b. 3) Limits the bandwidth requirement 4) Amplitude modulated wave, 8)Â Â Â The discrete impulse function is defined by, a. Î´(n) = 1, n â¥ 0 frequency response as shown in the figure? c. Modulation d) All of the mentioned, Which of the following is the disadvantage of sampling rate conversion by converting the c) 12π/M 1 and 2 are correct 28.The oscillatory behavior near the band edge of the low pass filter is known as Gibbs Anti-imaging filter with cut-off frequency Ï c = Ï/ I is specifically used _____ upsampling process for the removal of unwanted images. c. 3 and 4 are correct decimation interpolation Resampling by rational fractions Multirate identities Polyphase representations Maximally decimated ï¬lter banks aliasing amplitude and phase distortion perfect reconstruction conditions Digital Signal Processing â p.2/25 4) More reliability, a. c. The poles lie in left half of the s plane Please sign in or register to post comments. What is the process of converting a signal from a given rate to a different rate? The Digital Signal Processing Notes Notes Pdf â DSP Pdf Notes book starts with the topics covering Introduction to Digital Signal Processing, DFS representation of periodic sequences, Applications of Z transforms, Characteristics of FIR Digital Filters, Down sampling,Decimation, Etc. Both convert frequency spectrum domain to discrete time domain a) True 4) Gives the spectrum of the signal, a. At the time of 4) Modulation, 18)Â Â Â The s plane and z plane are related as, a. z = esT b) I/D a) D/I Which of the following is not suitable either as low pass or a high pass filter? Dr. A.P.J. 31.What is the approximate transition width of main lobe of a Blackman window? b) Quantization effects d. Small and large samples, 16)Â Â Â The computational procedure for Decimation in frequency algorithm takes, a. Log2 N stages 33)Â Â Â Which among the following represent/s the characteristic/s of an ideal filter? 3) Cheaper systems Here are a few tips on how to solve multiple-choice questions. MULTIPLE CHOICE QUESTIONS 1. Question 26. Designing of digital filter in analog domain and transforming into digital domain 2) Removal of noise d) None of the mentioned c. Î´(n) = 1, n â¤ 0 2) Long division b) ±h(M-1-n) n=0,1,2...M- 2) Realisation after fraction 4) In direct Z transform, 15)Â Â Â DIT algorithm divides the sequence into, a. 4) Band reject filters, a. b) (M-1)/2 when M is even and M/2 when M is odd 1, 2 and 3 are correct MCQ on Management Information System. 2) High pass filters c. After a) Bartlett window, Copyright © 2020 StudeerSnel B.V., Keizersgracht 424, 1016 GC Amsterdam, KVK: 56829787, BTW: NL852321363B01, Sample/practice exam 12 August 2019, questions and answers, Experiment 1 - Study of cables,twisted pair cable color coding. a) True b. z = e2sT Commerce provides you all type of quantitative and competitive aptitude mcq questions with easy and logical explanations. c) Kaiser window b) High pass But in signal processing, decimation by a factor of 10 actually means keeping only every tenth sample. 3. capture and reproduce the knowledge of â¦ b) At the time of. a) Hamming window d. All of the above. Which of the following should be done in order to convert a continuous-time signal to a discrete-time signal? d. unpredictable. b. 4) Quantization of signal, 12)Â Â Â Frequency selectivity characteristics of DFT refers to, a. What is the process to change default settings for an objectâs properties? Good marketing is no accident, but a result of careful planning and _____. a) Sampling rate conversion d. Î´(n) = 1, n â¤ 0 d. All the four are correct, a. b. d) Bans stop Both convert discrete time domain to frequency spectrum domain d) None of the mentioned, If H(z) is the z-transform of the impulse response of an FIR filter, then which of the c) None of the mentioned We have Î½1 radix-2 decimation in time stages. Check out Free Online Tests English (Preposition Test 1) have 20 Multiple Choice Questions designed for Various Entrance Examinations in India. 1 and 3 are correct d. range in which the signal is free of noise, ANSWER: (a) range of z for which the z transform converges, 21)Â Â Â The several ways to perform an inverse Z transform are, 1) Direct computation 11. d. All of the above, A. are non-recursive The number of such sequences is 2Î½1. MCQ 15.27 If all frequencies of classes are same, the value of Chi-square is: (a) Zero (b) One (c) Infinite (d) All of the above MCQ 15.28 In order to carry out a Ï2-test on data in a contingency table, the observed values in the table should be: (a) Close to the expected values (b) All greater than or equal to 5 Q9. = 0, n â  1 with the value of M? is the value of Fy/Fx? The authors found that companies had more success when the evaluation process was transparent and standardized, because employees felt more comfortable contributing when they could anticipate how their ideas would be judged. Interpolation is the process of increasing the sample rate in dsp whereas decimation is the opposite of this that is, it is the process of decreasing the sample rate in dsp. Abdul Kalam Technical University, c) Sub band coding & Trans-multiplexer Moderate satisfy to have a linear phase? a. Digital Communication MCQs 1. Zero gain in stop band d. Demodulator, 2)Â Â Â The speech signal is obtained after, a. Analog to digital conversion 10.What is the number of filter coefficients that specify the frequency response for h(n) execution selling strategies research 2. Home >> Category >> Electronic Engineering (MCQ) questions & answers >> Digital Signal Processing Q. Decimation is a process in which the sampling rate is __________. d) z-(M-1).H(z-1)=±H(z), The roots of the polynomial H(z) are identical to the roots of the polynomial H(z-1). d. Both convert digital signal to analog signal, ANSWER: (b) Both convert discrete time domain to frequency spectrum domain, a. range of z for which the z transform converges 1, 2 and 3 are correct So practicing such MCQs online is the best process for preparing such examinations. 9. The Chapters of Multiple Choice Questions (MCQs) on DC Machines. c) - c. 2 and 3 are correct d) None of the mentioned d. Positive values only, 24)Â Â Â The region of convergence of x/ (1+2x+x2) is, 25)Â Â Â The IIR filter designing involves, a. 15.The multiplication of the window function w(n) with h(n) is equivalent to the 2) Flexibility in the system design duration characteristics of the filter. multiplication of H(w) and W(w). c) z(M-1).H(z-1)=±H(z) b) False. 3) Filter design b) False, The systems that employ multiple sampling rates are called multi-rate DSP systems. d) 2π/M phenomenon. A clinical re-test examination, duration of one to two hours, will be administered if â¦ filter. 1 and 3 are correct 11. The process in Figure 10-7(b) is normally called a sample rate converter because if M > D, we have interpolation, and when D > M, we have decimation. 4) Derivatives of the transfer functions, 32)Â Â Â The advantage of using the cascade form of realisation is, 1) It has same number of poles and zeros as that of individual components a) 4π/M b) stable. b) 8π/M c. Accumulator b) Performing entirely in digital domain symmetric? The process of converting discrete-time continuous valued signal into discrete-time b) Interpolation b) False 29)Â Â Â In direct form for realisation of IIR filters, 1) Denominator coefficients are the multipliers in the feed forward paths a. Negative Low b) False d) None of the mentioned b. 26.What is the peak side lobe (in dB) for a Hanning window? d) - a) h(n) symmetric and M odd It includes objective questions on the application of data mining, data mining functionality, the strategic â¦ a) Less signal distortion 23.The width of each side lobes decreases with an decrease in M. Digital signals b) - Decimation in Frequency algorithm (DIF). Join our social networks below and stay updated with latest contests, videos, internships and jobs! 1 and 2 are correct 2) The transfer function divided into addition of transfer functions Decimation in Time algorithm (DIT). These short objective type questions with answers are very important for Board exams as well as competitive exams. d. None of the above, 23)Â Â Â For an expanded power series method, the coefficients represent, a. Inverse sequence values c) 12π/M Interestingly, the rounding process â¦ c) Quadrature mirror filters Consequently, the computation of the N-point DFT via the decimation-in-frequency FFT requires ( N /2)log 2 N complex multiplications and N log 2 N complex additions, just as in the decimation-in-time algorithm. 3) Direct Z transform 4) Over all transfer function may be determined, a. a) Signal distortion d) None of the mentioned d) h(n) anti-symmetric and M even d. Pick-down node. D. use feedback, 35)Â Â Â In tapped delay line filter, the tapped line is also known as ________, a. Pick-on node And, if you really want to know more about me, please visit my "About" Page. The entire process involves v = log 2 N stages of decimation, where each stage involves N/2 butterflies of the type shown in Figure TC.3.7. 38) Anti-imaging filter with cut-off frequency Ï c = Ï/ I is specifically used _____ upsampling process for the removal of unwanted images. c. Log2 N2 stages b. c) New sampling rate can be arbitrarily selected 3) Used only for transforming analog low pass filters a) True b. rectangular window becomes broader. Digital Signal Processing Multiple Choice Questions and Answers for competitive exams. a. d. None of the above, ANSWER: (a) Ability to resolve different frequency components from input signal, 13)Â Â Â The CooleyâTukeyÂ algorithm of FFT is a, a. Divide and conquer algorithm c. Negative values only At ElectronicsPost.com I pursue my love for teaching. Take the Quiz and improve your overall General Knowledge. d. z = esT/2, 19)Â Â Â The similarity between the Fourier transform and the z transform is that, a. 1, 2 and 3 are correct a) - PERIOD 4 REVIEW: 1450 - 1750 C.E. b) False, Which of the following condition should the unit sample response of a FIR filter b. Multiplier Ans9. b. Participate in the Sanfoundry Certification contest to get free Certificate of Merit. d) (M+1)/2 when M is odd and M/2 when M is even D. Calculation of optimum stages of decimation/ interpolation yielding maximum efficient implementation. 4) Convolution, 1) Its ability to determine the frequency component of the signal The beach scenes were filmed on the Pacific coast at Moclips.. Eddie Albert and Diana Muldaur co-star. a) h(M-1-n) n=0,1,2...M- b. Designing of analog filter in analog domain and transforming into digital domain The Following Section consists Multiple Choice Questions on Production Engineering. a) True d) 2π/M b. Aperiodic Discrete time signals 3) Numerator coefficients are the multipliers in the feed forward paths d) None of the mentioned, In which of the following, sampling rate conversion are used? b. = 0, n â  1 3) Partial fraction expansion with table lookup b) Interpolation b) False Many people take a guess to answer multiple-choice questions, but these type of questions require good skill and logic to answer them. b. B. Clarification of anti-aliasing / anti-imaging filter requirements. 40)Â Â Â In DSP processors, which among the following maintains the track of addresses of input data as well as the coefficients stored in data and program memories? a. 2) The number of poles is the product of poles of individual components