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MCQs 1: A 50 kW carrier is to be amplitude modulated to a level of 85%. What is the carrier power after modulation ?

50 kW 5 kW 8 kW 25 kW
Answer Explanation

MCQs 2: As the modulation level is increased, the carrier power__________________?

Is increased Remains the same Is decreased None of the above
Answer Explanation

MCQs 3: A high Q tuned circuit will permit an amplifier to have high __________________?

Fidelity Frequency range Sensitivity Selectivity
Answer Explanation

MCQs 4: Man made noise are______________ variations?

Amplitude Frequency Phase Both phase and frequency
Answer Explanation

MCQs 5: If level of modulation is increased ______________ power is increased?

Carrier Sideband Carrier as well as sideband None of the above
Answer Explanation

MCQs 6: Demodulation is done in ________________?

Receiving antenna Transmitter Radio receiver Transmitting antenna
Answer Explanation

MCQs 7: In radio transmission, the medium of transmission is ________________?

Space An antenna Cable None of the above
Answer Explanation

MCQs 8: In TV transmission, picture signal is ______________ modulated?

Frequency Phase Amplitude None of the above
Answer Explanation

MCQs 9: In a radio receiver, noise is generally developed at _______________?

IF stage Receiving antenna Audio stage RF stage
Answer Explanation

MCQs 10: The signal voltage induced in the aerial of a radio receiver is of the order of ________________?

mV µV V None of the above
Answer Explanation

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