MCQOPTIONS
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MCQOPTIONS
This section includes 10 Mcqs, each offering curated multiple-choice questions to sharpen your Analog Communications knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Amplitude Modulated wave is ________ |
| A. | Sum of carrier and modulating wave |
| B. | Product of carrier and modulating wave |
| C. | Difference of carrier and modulating wave |
| D. | Sum of carrier and its product with modulating wave |
| Answer» B. Product of carrier and modulating wave | |
| 2. |
The minimum channel Bandwidth is used by which modulation technique? |
| A. | VSB |
| B. | SSB-SC |
| C. | DSB-SC |
| D. | AM |
| Answer» C. DSB-SC | |
| 3. |
AM spectrum consists of ________ |
| A. | Carrier frequency |
| B. | Upper sideband |
| C. | Lower sideband |
| D. | Carrier frequency with both upper and lower sideband |
| Answer» E. | |
| 4. |
For Amplitude Modulation, Emitter modulator ________ |
| A. | Operates in class C mode |
| B. | Has a low efficiency |
| C. | Output power is high |
| D. | Operates in class B mode |
| Answer» C. Output power is high | |
| 5. |
AMPLITUDE_MODULATED_WAVE_IS_________?$ |
| A. | Sum of carrier and modulating wave |
| B. | Product of carrier and modulating wave |
| C. | Difference of carrier and modulating wave |
| D. | Sum of carrier and its product with modulating wave |
| Answer» B. Product of carrier and modulating wave | |
| 6. |
Envelope Detector is a/an ________$ |
| A. | Coherent detector |
| B. | Asynchronous Detector |
| C. | Synchronous Detector |
| D. | Product Demodulator |
| Answer» C. Synchronous Detector | |
| 7. |
Find lower frequency component in AM wave, given that highest frequency component is 900KHz and bandwidth is 12KHz? |
| A. | 832KHz |
| B. | 600KHz |
| C. | 868KHz |
| D. | 888KHz |
| Answer» E. | |
| 8. |
AM broadcast station transmits modulating frequency upto 6KHz. If transmitting frequency is 810KHz, then maximum and lower sidebands are ________ |
| A. | 816KHz and 804KHz |
| B. | 826KHz and 804KHz |
| C. | 916KHz and 904KHz |
| D. | 822KHz and 816KHz |
| Answer» B. 826KHz and 804KHz | |
| 9. |
Singletone amplitude modulation ________ |
| A. | consists of only one frequency component |
| B. | contains a large number of frequency components |
| C. | contains no frequency components |
| D. | contains infinite number of frequency components |
| Answer» B. contains a large number of frequency components | |
| 10. |
Why AM is used for broadcasting? |
| A. | More immune to noise |
| B. | Less transmitting power is required |
| C. | It has high fidelity |
| D. | Avoids Receivers Complexity |
| Answer» E. | |