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MCQs 1: In a superhetrodyne receiver, the difference frequency is chosen as the IF rather than the sum frequency because _________________?

The difference frequency is closer to oscillator frequency Lower frequencies are easier to amplify Only the difference frequency can be modulated None of the above
Answer Explanation

MCQs 2: In a TRF radio receiver, the RF and detection stages are tuned to______________?

Radio frequency IF Audio frequency None of the above
Answer Explanation

MCQs 3: In the above question, what is the power in sidebands?

8 kW 6 kW 06 kW 9 kW
Answer Explanation

MCQs 4: In TV transmission, sound signal is ______________modulated?

Amplitude Frequency Phase None of the above
Answer Explanation

MCQs 5: The diode detector in an AM radio receiver is usually found _____________?

Before the first RF stage After the first RF stage After several stages of amplification None of the above
Answer Explanation

MCQs 6: In the above question, what is the power in sidebands ?

8 kW 6 kW 06 kW 9 kW
Answer Explanation

MCQs 7: Modulation refers to a low-frequency signal controlling the ________________?

Amplitude of the carrier Frequency of the carrier Phase of the carrier May be any of the above
Answer Explanation

MCQs 8: The major advantage of FM over AM is__________________?

Reception is less noisy Higher carrier frequency Smaller bandwidth Small frequency deviation
Answer Explanation

MCQs 9: Superhertodyne principle refers to_________________?

Using a large number of amplifier stages Using a push-pull circuit Obtaining lower fixed intermediate frequency None of the above
Answer Explanation

MCQs 10: The superhetrodyne principle provides selectivity at ______________stage?

RF IF audio Before RF
Answer Explanation

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