MCQOPTIONS
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MCQOPTIONS
This section includes 17 Mcqs, each offering curated multiple-choice questions to sharpen your Matlab knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Discrete time convolution is not possible in MATLAB. |
| A. | True |
| B. | False |
| Answer» C. | |
| 2. |
If σ<0, the point in the z plane lies __ of the circle |z|=1. |
| A. | Interior |
| B. | Exterior |
| C. | On the circumference |
| D. | Nowhere near |
| Answer» B. Exterior | |
| 3. |
The unit step response of an L.T.I. system is the convolution of a step signal and it's ________ |
| A. | Impulse response |
| B. | Ramp response |
| C. | Parabolic response |
| D. | Time response |
| Answer» B. Ramp response | |
| 4. |
If x(t-5)=0 for t<5 = A for t>=5, the signal is ___________ |
| A. | Causal |
| B. | Symmetric |
| C. | Linear, Time Invariant and Causal |
| D. | Cannot be determined |
| Answer» B. Symmetric | |
| 5. |
The output of p=conv([ones(1,50)],[ones(1,100)]) and p=conv([ones(1,100)],[ones(1,50)]) are same. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 6. |
The impulse response of a discrete time system is the inverse Z-transform of the transfer function of the system in z-domain. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 7. |
What is the T in the relation z=esT? |
| A. | Sampling Period |
| B. | Time Period |
| C. | Normal Period |
| D. | Average Period |
| Answer» B. Time Period | |
| 8. |
The unit delay operator can be thought of in the z-domain as ___________ |
| A. | Multiplication by z-1 |
| B. | Multiplication by z |
| C. | Multiplication by z-2 |
| D. | Multiplication by z2 |
| Answer» B. Multiplication by z | |
| 9. |
What is the relationship b/n laplace transform and z-transform of a function? |
| A. | Impulse invariant transformation |
| B. | z=e-sT |
| C. | s=jw |
| D. | s=σ |
| Answer» B. z=e-sT | |
| 10. |
The R.O.C. of a unit step function is __________ |
| A. | |z|>|1| |
| B. | Entire z plane except z=0 |
| C. | Entire z plane except z=∞ |
| D. | Does not exist |
| Answer» B. Entire z plane except z=0 | |
| 11. |
plot([0:1:8],[rectpulse(1,9)]') and plot([0:1:8],ones(1,9)) will generate the same graph. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 12. |
The signal get shifted by 1 units in time due to the following code: conv([ 1 2 3],[ 0 1 0 ]). |
| A. | True |
| B. | False |
| Answer» B. False | |
| 13. |
The Z-transform is only for discrete signals. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 14. |
The convolution of a signal in time domain can be viewed as __________ |
| A. | Multiplication in z-domain |
| B. | Squaring in z-domain |
| C. | Doubling the signal in z-domain |
| D. | Convolution in z-domain |
| Answer» B. Squaring in z-domain | |
| 15. |
A continuous signal can be represented as the product of an impulse function and the signal itself. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 16. |
The bilateral Z-transform ranges from ____________ |
| A. | -∞ to ∞ |
| B. | 0 to ∞ |
| C. | -∞ to 0 |
| D. | Does not exist |
| Answer» B. 0 to ∞ | |
| 17. |
The Z-transform doesn't follow the linearity principle. |
| A. | True |
| B. | False |
| Answer» C. | |