MCQOPTIONS
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MCQOPTIONS
This section includes 6 Mcqs, each offering curated multiple-choice questions to sharpen your Wireless & Mobile Communications Questions & Answers Amplitude Modulation knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
A product detector in AM systems is also called ___________ |
| A. | Envelope detector |
| B. | Differentiator |
| C. | Integrator |
| D. | Phase detector |
| Answer» E. | |
| 2. |
AM demodulation technique can be divided into _____ and _____ demodulation. |
| A. | Direct, indirect |
| B. | Slope detector, zero crossing |
| C. | Coherent, noncoherent |
| D. | Quadrature detection, coherent detection |
| Answer» D. Quadrature detection, coherent detection | |
| 3. |
FFSR in AM systems stands for ________ |
| A. | Feedforward signal regeneration |
| B. | Feedbackward signal regeneration |
| C. | Feedbackward system restoration |
| D. | Feedforward system restoration |
| Answer» B. Feedbackward signal regeneration | |
| 4. |
The RF bandwidth of AM is ____________ the maximum frequency contained in the modulating message signal. |
| A. | Equal |
| B. | Two times |
| C. | Four times |
| D. | Ten times |
| Answer» C. Four times | |
| 5. |
A percentage of modulation greater than ___________ will distort the message signal. |
| A. | 10% |
| B. | 25% |
| C. | 50% |
| D. | 100% |
| Answer» E. | |
| 6. |
Modulation index of an AM signal is ratio of __________ to the _______ |
| A. | Peak carrier amplitude, Peak message signal amplitude |
| B. | Peak message signal amplitude, Peak carrier amplitude |
| C. | Carrier signal frequency, Message signal frequency |
| D. | Message signal frequency, Carrier signal frequency |
| Answer» C. Carrier signal frequency, Message signal frequency | |