Communication Systems The direction of rotation of a CD is Clockwise Anticlockwise Mostly anticlockwise but some times clockwise Clockwise or anticlockwise depending on frequency of data stored Clockwise Anticlockwise Mostly anticlockwise but some times clockwise Clockwise or anticlockwise depending on frequency of data stored ANSWER DOWNLOAD EXAMIANS APP
Communication Systems VSB modulation is preferred in TV because It results in better reception None of these It avoids phase distortion at low frequencies It reduces the bandwidth requirement to half It results in better reception None of these It avoids phase distortion at low frequencies It reduces the bandwidth requirement to half ANSWER DOWNLOAD EXAMIANS APP
Communication Systems If output power of a radio receiver is doubled, its volume is increased by __________ dB. 1 3 -3 2 1 3 -3 2 ANSWER DOWNLOAD EXAMIANS APP
Communication Systems Skip distance depends on time of day and angle of incidence. False True False True ANSWER DOWNLOAD EXAMIANS APP
Communication Systems Full duplex operation permits transmission in both directions at the same time. True False True False ANSWER DOWNLOAD EXAMIANS APP
Communication Systems A zero mean white Gaussian noise is passed through an ideal low pass filter of bandwidth 10 kHz. The output of the samples so obtained would be Correlated Statistically independent Orthogonal Uncorrelated Correlated Statistically independent Orthogonal Uncorrelated ANSWER DOWNLOAD EXAMIANS APP
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