Communication Systems Which of the following does not cause losses in optical fibre cables? Stepped index operation Attenuation in glass Microbending Impurities Stepped index operation Attenuation in glass Microbending Impurities ANSWER DOWNLOAD EXAMIANS APP
Communication Systems A three stage telephone switching structure is to have 128 input and 128 output terminals. There are 16 first stage and 16 third stage matrices. To avoid blocking the number of intermediate paths required is 1 8 15 16 1 8 15 16 ANSWER DOWNLOAD EXAMIANS APP
Communication Systems Commercial Frequency deviation of FM is 75 kHz 70 kHz 65 kHz 80 kHz 75 kHz 70 kHz 65 kHz 80 kHz ANSWER DOWNLOAD EXAMIANS APP
Communication Systems Skip distance depends on time of day and angle of incidence. True False True False ANSWER DOWNLOAD EXAMIANS APP
Communication Systems A cordless telephone using separate frequencies for transmission in base and portable units is known as Half duplex arrangement Neither A nor B Either A or B Duplex arrangement Half duplex arrangement Neither A nor B Either A or B Duplex arrangement ANSWER DOWNLOAD EXAMIANS APP
Communication Systems DVD uses Laser beam for recording and video head for playback None of these Video head for recording and laser beam for playback Laser beam for both recording and playback Laser beam for recording and video head for playback None of these Video head for recording and laser beam for playback Laser beam for both recording and playback ANSWER DOWNLOAD EXAMIANS APP
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