In pakistan, ______________ modulation is used for radio transmission?

Related Mcqs:

1. In radio transmission, the medium of transmission is ________________?

   A. Space B. An antenna C. Cable D. None of the above...

2. Over modulation results in ______________?

   A. Weakening of the signal B. Excessive carrier power C. Distortion D. None of the above...

3. If level of modulation is increased ______________ power is increased?

   A. Carrier B. Sideband C. Carrier as well as sideband D. None of the above...

4. At 100% modulation, the power in each sideband is _____________ of that of carrier?

   A. 50% B. 40% C. 60% D. 25%...

5. In amplitude modulation, bandwidth is ____________ the audio signal frequency?

   A. Thrice B. Four times C. Twice D. None of the above...

6. Modulation is done in____________________

   A. Transmitter B. Radio receiver C. Between transmitter and radio receiver D. None of the above...

7. In amplitude modulation, the _____________of carrier is varied according to the strength of the signal?

   A. Amplitude B. Frequency C. Phase D. None of the above...

8. If Amin = 40 and Amax = 60, what is the percentage of modulation?

   A. 20 % B. 40 % C. 50 % D. 10 %...

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

   A. 50 kW B. 5 kW C. 8 kW D. 25 kW...

10. Modulation refers to a low-frequency signal controlling the ________________?

    A. Amplitude of the carrier B. Frequency of the carrier C. Phase of the carrier D. May be any of the above...