Microwave Communication If the instantaneous RF potentials on the two sides of a magnetron cavity are of opposite polarity, the operation is in the π mode 2π mode π/4 mode π/2 mode π mode 2π mode π/4 mode π/2 mode ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication A magnetron is operated at a duty cycle of 0.001. It has a peak power output of 100 kilo-watts. Its average power is 10,000 watts 100 watts 1,000,000 watts 1,000 watts 10,000 watts 100 watts 1,000,000 watts 1,000 watts ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication A thin layer of dirt and grime coverts the reflecting surface of the parabolic dish of a radar set. The particular effect on the performance of the radar will be A reduction in horizontal resolution A decrease in gain No noticeable effect A decrease in range A reduction in horizontal resolution A decrease in gain No noticeable effect A decrease in range ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication The frequency of the oscillation generated by a magnetron, is mainly determined by The number of the cavity resonators The ratio of the dc cathode voltage to the magnetic flux density The flux density of the external magnet The dimension of each cavity resonator The number of the cavity resonators The ratio of the dc cathode voltage to the magnetic flux density The flux density of the external magnet The dimension of each cavity resonator ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication The resonant frequency of a cavity resonator depends upon Its physical dimensions Its electrical dimensions The mode of operation The capacitor which tunes it Its physical dimensions Its electrical dimensions The mode of operation The capacitor which tunes it ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication A PPI cathode-ray tube as used on a radar set Is used to check the percentage of modulation Is used for receiver alignment Indicates both the range and azimuth of a target Indicates only the range of a target Is used to check the percentage of modulation Is used for receiver alignment Indicates both the range and azimuth of a target Indicates only the range of a target ANSWER DOWNLOAD EXAMIANS APP
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