1) In the cascaded form of realisation, the polynomials are factored into a. a product of 1st-order and 2nd-order polynomials b. a product of 2nd-order and 3rd-order polynomials c. a sum of 1st-order and 2nd-order polynomials d. a sum of 2nd-order and 3rd-order polynomials
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2) Parallel form of realisation is done in a. High speed filtering applications b. Low speed filtering applications c. Both a and b d. None of the above
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3) A direct partial-fraction expansion of the transfer function in Z leads to a. The parallel form II structure b. The parallel form I structure c. Cascaded structure d. None of the above
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4) Basically, group delay is the delayed response of filter as a function of ________. a. Phase b. Amplitude c. Frequency d. All of the above
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5) A filter is said to be linear phase filter if the phase delay and group delay are _______ a. High b. Moderate c. Low d. Constant
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6) Which among the following has/have a provision to support an adaptive filtering mechanism? a. IIR b. FIR c. Both a and b d. None of the above
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7) Which is/are the correct way/s for the result quantization of an arithmetic operation? a. Result Truncation b. Result Rounding c. Both a and b d. None of the above
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8) In direct form realization for an interpolator, which among the following generates an intermediate signal? a. Upsampler b. Downsampler c. Anti-imaging filter d. Anti-aliasing filter
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9) To change the sampling rate for better efficiency in two or multiple stages, The decimation and interpolation factors must be _________unity. a. Less than b. Equal to c. Greater than d. None of the above
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10) Which address/es is/are generated by Program Sequences? a. Data Address b. Instruction Address c. Both a and b d. None of the above
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11) In DAGs, which register/s provide/s increment or step size for index register especially during the register move? a. Index Register b. Length & Base Register c. Modify Register d. All of the above
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13) One dimensional signal is a function of a. Multiple independent variables b. Single independent variable c. Multiple dependent variables d. Single dependent variable
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14) Superposition of signals in a linear system refers to the a. Output that is product of all the signals b. Output that is sum of all the signals c. Output that is of highest amplitude of all the signals d. Output that is of largest spectrum of all the signals
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15) DFT is applied to a. Infinite sequences b. Finite discrete sequences c. Continuous infinite signals d. Continuous finite sequences
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16) The filtering is performed using DFT using
1) Limited size or blocks of data 2) Small memory size 3) Large memory size 4) Large segments of data a. 1, 2 and 3 are correct b. 3 and 4 are correct c. 1 and 2 are correct d. All the four are correct
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17) Discrete cosine transforms (DCTs) express a function or a signal in terms of a. Sum of cosine functions oscillating at different frequencies b. Sum of cosine functions oscillating at same frequencies c. Sum of cosine functions at different sampling intervals d. Sum of cosine functions oscillating at same sampling intervals
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18) A system is said to be unstable if a. None of the poles of its transfer function is shifted to the right half of s-plane b. At least one zero of its transfer function is shifted to the right half of s-plane c. At least one pole of its transfer function is shifted to the right half of s-plane d. At least one pole of its transfer function is shifted to the left half of s-plane
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19) A system is said to be marginally unstable if a. None of its zeros of its transfer function lies on the jω axis of s-plane b. At least one zero of its transfer function lies on the jω axis of s-plane c. None of its poles of its transfer function lies on the jω axis of s-plane d. At least one pole of its transfer function lies on the jω axis of s-plane
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20) The nonlinear difference equations are solved using a. Iterative method b. Cobweb model c. Phase diagram d. Power series method
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