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

• 1. IF stage
• 2. Receiving antenna
• 3. Audio stage
• 4. RF stage

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

• 1. mV
• 2. µV
• 3. V
• 4. None of the above

Question: The signal voltage induced in the aerial of a radio receiver is of the order of_____________?

• 1. mV
• 2. µV
• 3. V
• 4. None of the above

Question: In a transmitter ____________oscillator is used?

• 1. Hartley
• 2. RC phase-shift
• 3. Wien-bridge
• 4. Crystal

Question: In an AM wave useful power is carrier by ______________?

• 1. Carrier
• 2. Sidebands
• 3. Both sidebands and carrier
• 4. None of the above

Question: In an AM wave, the majority of the power is in _____________?

• 1. Lower sideband
• 2. Upper sideband
• 3. Carrier
• 4. None of the above

Question: If modulation is 100% then signal amplitude is ____________arrier amplitude?

• 1. Equal to
• 2. Greater than
• 3. Less than
• 4. None of the above

Question: In amplitude modulation, the _____________of carrier is varied according to the strength of the signal?

• 1. Amplitude
• 2. Frequency
• 3. Phase
• 4. None of the above

Question: In pakistan, ______________ modulation is used for radio transmission?

• 1. Frequency
• 2. Amplitude
• 3. Phase
• 4. None of the above

Question: Modulation is done in____________________.

• 1. Transmitter
• 2. Radio receiver
• 3. Between transmitter and radio receiver
• 4. None of the above