Microwave Communication The highest frequency which a conventional vacuum tube oscillator can generate is not limited by the Inter-electrode capacitance Electron transit time Degree of emission from the cathode Distributed lead inductance Inter-electrode capacitance Electron transit time Degree of emission from the cathode Distributed lead inductance ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication If the duration of the radar transmitted pulse, on a particular range of operation, is increased, the required bandwidth of the receiver’s IF amplifiers May be decreased Must be doubled Must remain as before Must be increased May be decreased Must be doubled Must remain as before Must be increased ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication A traveling-wave tube (TWT) amplifies by virtue of The energy contained the cavity resonators The energy liberated form the collector The absorption of energy by the signal from an electron stream The effect of an external magnetic field The energy contained the cavity resonators The energy liberated form the collector The absorption of energy by the signal from an electron stream The effect of an external magnetic field ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication Which of the following permits a microwave signal to travel in one direction with virtually no loss, but severely attenuates any signal attempting to travel in the reverse direction? Wave trap Tunnel diode Isolator Circulator Wave trap Tunnel diode Isolator Circulator ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication A shipboard equipment which measures the distance between the ship’s bottom and the ocean floor. Echosounder LORAN Fathometer SONAR Echosounder LORAN Fathometer SONAR 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 1,000 watts 10,000 watts 100 watts 1,000,000 watts 1,000 watts 10,000 watts 100 watts 1,000,000 watts ANSWER DOWNLOAD EXAMIANS APP
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