In a radio receiver, we generally use ………….. oscillator as a local oscillator

Related Mcqs:

1. The IF is 455 kHz. If the radio receiver is tuned to 855 kHz, the local oscillator frequency is _______________?

   A. 455 kHz
   B. 1310 kHz
   C. 1500 kHz
   D. 1520 kHz

2. In a radio receiver, noise is generally developed at _______________?

   A. IF stage
   B. Receiving antenna
   C. Audio stage
   D. RF stage

3. The signal voltage induced in the aerial of a radio receiver is of the order of_____________?

   A. mV
   B. µV
   C. V
   D. None of the above

4. The signal voltage induced in the aerial of a radio receiver is of the order of ________________?

   A. mV
   B. µV
   C. V
   D. None of the above

5. If a radio receiver amplifies all the signal frequencies equally well, it is said to have high ________________?

   A. Sensitivity
   B. Selectivity
   C. Distortion
   D. Fidelity

6. The diode detector in an AM radio receiver is usually found _____________?

   A. Before the first RF stage
   B. After the first RF stage
   C. After several stages of amplification
   D. None of the above

7. In a TRF radio receiver, the RF and detection stages are tuned to______________?

   A. Radio frequency
   B. IF
   C. Audio frequency
   D. None of the above

8. In superhetrodyne receiver, the input at mixer stage is________________?

   A. IF and RF
   B. RF and AF
   C. IF and AF
   D. RF and local oscillator signal

9. Most of the amplification in a superhetrodyne receiver occurs at ______________stage?

   A. IF
   B. RF amplifier
   C. Audio amplifier
   D. Detector

10. In a superhetrodyne receiver, the difference frequency is chosen as the IF rather than the sum frequency because _________________?

    A. The difference frequency is closer to oscillator frequency
    B. Lower frequencies are easier to amplify
    C. Only the difference frequency can be modulated
    D. None of the above