Digital Signal Processing MCQ. Electronics Engineering MCQ related to Digital Signal Processing.

**Digital Signal Processing MCQ**

**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. Data Address Generators (DAGs)**

**b.** Program sequences

**c.** Barrel Shifter

**d.** MAC

**Which units are generally involved in Multiply and Accumulate (MAC) ??**

**a.** Adder

**b.** Multiplier

**c.** Accumulator

**d. All of the above**

**Anti-imaging filter with cut-off frequency ω _{c} = π/ I is specifically used _______ upsampling process for the removal of unwanted images ??**

**a.** Before

**b.** At the time of

**c. After**

**d.** All of the above

**Decimation is a process in which the sampling rate is __________ ??**

**a.** enhanced

**b.** stable

**c. reduced**

**d.** unpredictable

**How is the sensitivity of filter coefficient quantization for FIR filters ??**

**a. Low**

**b.** Moderate

**c.** High

**d.** Unpredictable

**Electronic Engineering MCQ**

**In tapped delay line filter, the tapped line is also known as ________ ??**

**a.** Pick-on node

**b. Pick-off node**

**c.** Pick-up node

**d.** Pick-down node

**FIR filters ________ ??
**

**A. are non-recursive
B. do not adopt any feedback
C. are recursive
D. use feedback**

**a. A & B**

**b.** C & D

**c.** A & D

**d.** B & C

**Which among the following represent/s the characteristic/s of an ideal filter ??**

**a.** Constant gain in passband

**b.** Zero gain in stopband

**c.** Linear Phase Response

**d. All of the above**

**The advantage of using the cascade form of realization is ??**

1) It has the same number of poles and zeros as that of individual components

2) The number of poles is the product of poles of individual components

3) The number of zeros is the product of poles of individual components

4) Overall transfer function may be determined

**a.** 1, 2, and 3 are correct

**b.** 1 and 3 are correct

**c. 1 and 4 are correct**

**d.** All the four are correct

**The cascade realization of IIR systems involves ??**

1) The transfer function was broken into a product of transfer functions

2) The transfer function divided into the addition of transfer functions

3) Factoring the numerator and denominator polynomials

4) Derivatives of the transfer functions

**a.** 1, 2, and 3 are correct

**b. 1 and 3 are correct**

**c.** 3 and 4 are correct

**d.** All the four are correct

**Digital Signal Processing MCQ**

**The direct form II for realization involves ??**

1) The realization of transfer function into two parts

2) Realisation after a fraction

3) Product of two transfer functions

4) Addition of two transfer functions

**a.** 1, 2, and 3 are correct

**b. 1 and 3 are correct**

**c.** 3 and 4 are correct

**d.** All the four are correct

**In direct form for realization of IIR filters ??**

1) Denominator coefficients are the multipliers in the feed-forward paths

2) Multipliers in the feedback paths are the positives of the denominator coefficients

3) Numerator coefficients are the multipliers in the feed-forward paths

4) Multipliers in the feedback paths are the negatives of the denominator coefficients

**a.** 1, 2, and 3 are correct

**b.** 1 and 2 are correct

**c. 3 and 4 are correct**

**d.** All the four are correct

**The filter that may not be realized by approximation of derivatives techniques are ??**

1) Bandpass filters

2) High pass filters

3) low pass filters

4) Band reject filters

**a.** 1, 2, and 3 are correct

**b. 2 and 4 are correct**

**c.** 2 and 3 are correct

**d.** All the four are correct

**IIR filter design by approximation of derivatives has the limitations ??**

1) Used only for transforming analog high pass filters

2) Used for bandpass filters having smaller resonant frequencies

3) Used only for transforming analog low pass filters

4) Used for bandpass filters having high resonant frequencies

**a.** 1, 2, and 3 are correct

**b.** 1 and 2 are correct

**c. 2 and 3 are correct**

**d.** All the four are correct

**For a system function H(s) to be stable ??**

**a.** The zeros lie in the left half of the s plane

**b.** The zeros lie in the right half of the s plane

**c. The poles lie in the left half of the s plane**

**d.** The poles lie in the right half of the s plane

**Digital Signal Processing MCQ**

**The IIR filter designing involves ??**

**a.** Designing of analog filter in the analog domain and transforming into digital domain

**b. Designing of digital filter in the analog domain and transforming into digital domain**

**c.** Designing of analog filter in the digital domain and transforming into analog domain

**d.** Designing of digital filter in the digital domain and transforming into the analog domain

**The region of convergence of x/ (1+2x+x ^{2}) is ??**

**a.** 0

**b. 1**

**c.** Negative

**d.** Positive

**For an expanded power series method, the coefficients represent ??**

**a. Inverse sequence values**

**b.** Original sequence values

**c.** Negative values only

**d.** Positive values only

**The anti causal sequences have ______ components in the left-hand sequences ??**

**a. Positive**

**b.** Negative

**c.** Both a and b

**d.** None of the above

**The several ways to perform an inverse Z transform are ??**

1) Direct computation

2) Long division

3) Partial fraction expansion with table lookup

4) Direct inversion

**a.** 1, 2, and 3 are correct

**b.** 1 and 2 are correct

**c.** 2 and 3 are correct

**d. All the four are correct**

**Digital Signal Processing MCQ**

**The ROC of a system is the ??**

**a. range of z for which the z transform converges**

**b.** range of frequency for which the z transform exists

**c.** range of frequency for which the signal gets transmitted

**d.** range in which the signal is free of noise

**The similarity between the Fourier transform and the z transform is that ??**

**a.** Both convert frequency spectrum domain to discrete-time domain

**b. Both convert discrete-time domain to frequency spectrum domain**

**c.** Both convert the analog signal to digital signal

**d.** Both convert digital signal to analog signal

**The s plane and z plane are related as ??**

**a.** z = e^{sT}

**b.** z = e^{2sT}

**c. z = 2e ^{sT}**

**d.**z = e

^{sT}/2

**The transformations are required for ??**

1) Analysis in time or frequency domain

2) Quantization

3) Easier operations

4) Modulation

**a.** 1, 2, and 3 are correct

**b.** 1 and 2 are correct

**c. 1 and 3 are correct**

**d.** All the four are correct

**The computational procedure for Decimation in frequency algorithm takes ??**

**a. Log2 N stages**

**b.** 2Log2 N stages

**c.** Log2 N^{2} stages

**d.** Log2 N/2 stages

**Digital Signal Processing MCQ**

**DIT algorithm divides the sequence into ??**

**a.** Positive and negative values

**b. Even and odd samples**

**c.** Upper higher and lower spectrum

**d.** Small and large sample

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