Communication Systems A buffer amplifier is A double-tuned amplifier None of these A high gain D.C. amplifier A cathode follower stage A double-tuned amplifier None of these A high gain D.C. amplifier A cathode follower stage ANSWER DOWNLOAD EXAMIANS APP
Communication Systems One of the advantages of base modulation over collector modulation of a transistor class C amplifier is The lower modulating power requirement Better linearity Improved efficiency High power output per transistor The lower modulating power requirement Better linearity Improved efficiency High power output per transistor ANSWER DOWNLOAD EXAMIANS APP
Communication Systems The direction of rotation of a CD is Clockwise Mostly anticlockwise but some times clockwise Anticlockwise Clockwise or anticlockwise depending on frequency of data stored Clockwise Mostly anticlockwise but some times clockwise Anticlockwise Clockwise or anticlockwise depending on frequency of data stored 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 Duplex arrangement Neither A nor B Either A or B Half duplex arrangement Duplex arrangement Neither A nor B Either A or B ANSWER DOWNLOAD EXAMIANS APP
Communication Systems Circular polarization None of these Is useful in reducing depolarization effect on received wave Involves critical alignment of transmitting and receiving antenna Is useful in discrimination between reception of adjacent beams None of these Is useful in reducing depolarization effect on received wave Involves critical alignment of transmitting and receiving antenna Is useful in discrimination between reception of adjacent beams ANSWER DOWNLOAD EXAMIANS APP
Communication Systems In TV systems, equalising pulses are sent during Serrations Vertical blanking Horizontal blanking Horizontal retrace Serrations Vertical blanking Horizontal blanking Horizontal retrace ANSWER DOWNLOAD EXAMIANS APP
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