1. Hi everybody I am robot. You can call me simply as robo. My knowledge is 10,000 times of yours. And my memory is in the order of tera bytes. Do you know how I achieved all these from you? Yes, you are right it is none other than the “Hard work”. Now I started my journey to help you. Hard work is the best investment a man can make

2. Q.NO.ANSWER 1 2 3 4 5 6 7 8 9 10 Q.NO.ANSWER 16 17 18 19 20 Q.NO.ANSWER 11 12 13 14 15 MULTIPLE CHOICE FILL IN THE BLANKS TRUE OR FALSE Hard work is the best investment a man can make

3. 1.The amplitude variations of Random process X(t) does _________ Dirichlet’s conditions. A). SatisfyB). Not satisfy C). Both A and BD). None[] MULTIPLE CHOICE Hard work is the best investment a man can make

4. 2.___________Function of a WSS random process is used to study Spectral characteristics. A). CorrelationB). Cross correlation C). Auto CorrelationD). None[] MULTIPLE CHOICE Hard work is the best investment a man can make

5. 3. The power spectrum density of a WSS random process, X(t) is defined as S XX (ω) =______________ A). B). C). D). [] MULTIPLE CHOICE Hard work is the best investment a man can make

6. 4. The average power, Pxx of a WSS random process is defined as ________________ A). B). C). D). [] MULTIPLE CHOICE Hard work is the best investment a man can make

7. 5. The power spectrum density of random process is ________ function. A). EvenB). Odd C). Both A and BD). None[] MULTIPLE CHOICE Hard work is the best investment a man can make

8. 6. The cross correlation function is defined in terms of cross power density spectrum as R XY (τ) = ____________ A). B). C). D). [] MULTIPLE CHOICE Hard work is the best investment a man can make

9. 7. The power spectral density of a WSS random process is always ___________. A). Negative B). Non-Negative C). Can be Negative or Positive D). Finite [] MULTIPLE CHOICE Hard work is the best investment a man can make

10. 8. The time average of Autocorrelation and psd forms a pair of _________________ A). Laplace TransformB). Z-Transform C). Fourier TransformD). Convolution[] MULTIPLE CHOICE Hard work is the best investment a man can make

11. 9. For a WSS random process, psd at zero frequency gives_____ A). Mean Value B). Variance C). Area under the curve of psd D). Area under the curve of Auto correlation.[] MULTIPLE CHOICE Hard work is the best investment a man can make

12. 10. The mean square value of a WSS random process gives_____ A). Mean Value B). Variance C). Area under the curve of psd D). Area under the curve of Auto correlation.[] MULTIPLE CHOICE Hard work is the best investment a man can make

13. 11. The average power of a WSS random process is second order moment function.[] TRUE OR FALSE Hard work is the best investment a man can make

14. 12. The power density spectrum of a random process is always a real function. [] TRUE OR FALSE Hard work is the best investment a man can make

15. 13. The psd of derivative of random process is equal to times the psd. [] TRUE OR FALSE Hard work is the best investment a man can make

16. 14. The real part of and real part of are odd functions of [] TRUE OR FALSE Hard work is the best investment a man can make S XY (ω) S YX (ω) ω

17. 15. The imaginary part of and imaginary part of are even functions of [] TRUE OR FALSE S XY (ω) S YX (ω) ω Hard work is the best investment a man can make

18. 16. If is Fourier transform of X(t) in interval [-T,T] then its power spectral density is defined as =___________ FILL IN THE BLANKS Hard work is the best investment a man can make X T (ω) S XX (ω)

19. 17. If and are Fourier transforms of X(t) and Y(t) in interval [-T,T] then its Cross power spectral density is defined as =___________ FILL IN THE BLANKS Hard work is the best investment a man can make X T (ω) Y T (ω) S XY (ω)

20. 18. If X(t) and Y(t) are Uncorrelated and have mean values and then =______________ FILL IN THE BLANKS Hard work is the best investment a man can make S XY (ω)

21. 19. If X(t) and Y(t) are Orthogonal then =__________ FILL IN THE BLANKS Hard work is the best investment a man can make S XY (ω)

22. 20. The psd of a random process whose auto correlation function is is _____ TRUE OR FALSE Hard work is the best investment a man can make

23. Q.NO.ANSWER 1B 2C 3D 4D 5A 6D 7B 8C 9D 10C Q.NO.ANSWER 16 17 18 19Zero 20 Q.NO.ANSWER 11TRUE 12TRUE 13TRUE 14FALSE 15FALSE MULTIPLE CHOICE FILL IN THE BLANKS TRUE OR FALSE Hard work is the best investment a man can make