Basic Science : Modulation And Demodulation QUESTIONS AND ANSWERS :: part1 : 1 to 5
Following Basic Science multiple choice objective type questions and answers will help you in many types of 2024 job and other entrance examinations :
1.One of the following of a carrier wave is varied is accordance with the intensity of the signal, in amplitude modulation |
| phase |
| amplitude |
| frequency |
| phase or frequency |
2.Super-hetrodyne receiver has |
| maximum stability, selectivity and sensibility |
| maximum stability, selectivity and minimum sensibility |
| maximum sensibility, minimum selectivity and stability |
| minimum stability, selectivity and sensibility |
3.Diode can be used as |
| an oscillator |
| an amplifier |
| a detector |
| a modulator |
4.In TV, an electrical disturbance (noise) affects |
| neither the video nor the audio signals |
| only the audio signals |
| both the video and audio signals |
| only the video signals |
5.One of the following converts sound waves into AF signals |
| loudspeaker |
| rectifier |
| microphone |
| antenna |
More Modulation And Demodulation QUESTIONS AND ANSWERS available in next pages
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