MCQOPTIONS
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MCQOPTIONS
This section includes 11 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. |
All lens have positive focal power. |
| A. | True |
| B. | False |
| Answer» C. | |
| 2. |
Convex lens has negative focal power and concave lens have positive focal power. |
| A. | True |
| B. | False |
| Answer» C. | |
| 3. |
Balanced modulator is used to suppress carrier signal to create an SSB or DSB. |
| A. | True |
| B. | False |
| Answer» C. | |
| 4. |
CONVEX_LENS_HAS_NEGATIVE_FOCAL_POWER_AND_CONCAVE_LENS_HAVE_POSITIVE_FOCAL_POWER.?$ |
| A. | True |
| B. | False |
| Answer» C. | |
| 5. |
All lens have positive focal power.$ |
| A. | True |
| B. | False |
| Answer» C. | |
| 6. |
Varacter diode modulator is an indirect way of generating FM. |
| A. | True |
| B. | False |
| Answer» C. | |
| 7. |
For classifying a modem as low speed its data rate is ________ |
| A. | upto 100bps |
| B. | upto 200bps |
| C. | upto 400bps |
| D. | upto 600bps |
| Answer» E. | |
| 8. |
What is the main function of a balanced modulator? |
| A. | to limit the noise picked by a receiver |
| B. | to produce balanced modulation of a carrier wave |
| C. | to suppress carrier signal |
| D. | to produce 100% modulation |
| Answer» E. | |
| 9. |
Balanced modulator is used to suppress carrier signal to create a SSB or DSB. |
| A. | True |
| B. | False |
| Answer» C. | |
| 10. |
In FM receiver, role of amplitude limiter is to reduce the amplitude of signals. |
| A. | True |
| B. | False |
| Answer» C. | |
| 11. |
What is the purpose of peak clipper circuits in radios? |
| A. | prevent overmodulation |
| B. | reduce bandwidth |
| C. | increase bandwidth |
| D. | regulate oscillator input voltage |
| Answer» B. reduce bandwidth | |