MCQOPTIONS
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MCQOPTIONS
This section includes 11 Mcqs, each offering curated multiple-choice questions to sharpen your Digital Signal Processing knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
The frequency P is called as ______________ |
| A. | Pass band ripple |
| B. | Stop band ripple |
| C. | Pass band edge ripple |
| D. | Stop band edge ripple |
| Answer» D. Stop band edge ripple | |
| 2. |
The magnitude |H( )| cannot be constant in any finite range of frequencies and the transition from pass-band to stop-band cannot be infinitely sharp. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 3. |
The HI( ) is uniquely determined from HR( ) through the integral relationship. This integral is called as Continuous Hilbert transform. |
| A. | True |
| B. | False |
| Answer» C. | |
| 4. |
What is the Fourier transform of the unit step function U( )? |
| A. | ( )-0.5-j0.5cot( /2) |
| B. | ( )-0.5+j0.5cot( /2) |
| C. | ( )+0.5+j0.5cot( /2) |
| D. | ( )+0.5-j0.5cot( /2) |
| Answer» E. | |
| 5. |
HR( ) and HI( ) are interdependent and cannot be specified independently when the system is causal. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 6. |
If h(n) is absolutely summable, i.e., BIBO stable, then the equation for the frequency response H( ) is given as? |
| A. | H<sub>I</sub>( )-j H<sub>R</sub>( ) |
| B. | H<sub>R</sub>( )-j H<sub>I</sub>( ) |
| C. | H<sub>R</sub>( )+j H<sub>I</sub>( ) |
| D. | H<sub>I</sub>( )+j H<sub>R</sub>( ) |
| Answer» D. H<sub>I</sub>( )+j H<sub>R</sub>( ) | |
| 7. |
If h(n) is causal and h(n)=he(n)+ho(n),then what is the expression for h(n) in terms of only ho(n)? |
| A. | h(n)=2h<sub>o</sub>(n)u(n)+h(0) (n), n 0 |
| B. | h(n)=2h<sub>o</sub>(n)u(n)+h(0) (n), n 1 |
| C. | h(n)=2h<sub>o</sub>(n)u(n)-h(0) (n), n 1 |
| D. | h(n)=2h<sub>o</sub>(n)u(n)-h(0) (n), n 0 |
| Answer» C. h(n)=2h<sub>o</sub>(n)u(n)-h(0) (n), n 1 | |
| 8. |
If h(n) is causal and h(n)=he(n)+ho(n),then what is the expression for h(n) in terms of only he(n)? |
| A. | h(n)=2h<sub>e</sub>(n)u(n)+h<sub>e</sub>(0) (n), n 0 |
| B. | h(n)=2h<sub>e</sub>(n)u(n)+h<sub>e</sub>(0) (n), n 1 |
| C. | h(n)=2h<sub>e</sub>(n)u(n)-h<sub>e</sub>(0) (n), n 1 |
| D. | h(n)=2h<sub>e</sub>(n)u(n)-h<sub>e</sub>(0) (n), n 0 |
| Answer» E. | |
| 9. |
The magnitude function |H( )| can be zero at some frequencies, but it cannot be zero over any finite band of frequencies. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 10. |
If |H( )| is square integrable and if the integral ( int_{- pi}^ pi |ln |H( )||d ) is finite, then the filter with the frequency response H( )=|H( )|ej ( ) is? |
| A. | Anti-causal |
| B. | Constant |
| C. | Causal |
| D. | None of the mentioned |
| Answer» D. None of the mentioned | |
| 11. |
If h(n) has finite energy and h(n)=0 for n<0, then which of the following are true? |
| A. | ( int_{- }^ |ln u2061 |H( )||d gt - infty ) |
| B. | ( int_{- }^ |ln u2061 |H( )||d lt infty ) |
| C. | ( int_{- }^ |ln u2061|H( )||d = infty ) |
| D. | None of the mentioned |
| Answer» C. ( int_{- }^ |ln u2061|H( )||d = infty ) | |