MCQOPTIONS
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MCQOPTIONS
This section includes 12 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. |
Which mathematically term is used for calculating FM bandwidth? |
| A. | Bessel functions |
| B. | Trigonometry |
| C. | Taylor series |
| D. | Fractals |
| Answer» B. Trigonometry | |
| 2. |
In SC in DSB-SC stands for _________ |
| A. | suppressed-carrier |
| B. | single-carrier |
| C. | sideband-carrier |
| D. | super-carrier |
| Answer» B. single-carrier | |
| 3. |
What is the total modulation index, if one wave has a modulation index of m1 and other wave has a modulation index of m2? |
| A. | m1 + m2 |
| B. | \( \frac{m_1+m_2}{2}\) |
| C. | \(\sqrt{(m_1 \times m_2) + (m_1 \times 2m_2)}\) |
| D. | \(\sqrt{(m_1 \times m_1) + (m_2 \times m_2)}\) |
| Answer» E. | |
| 4. |
WHICH_MATHEMATICALLY_TERM_IS_USED_FOR_CALCULATING_FM_BANDWIDTH??$ |
| A. | Bessel functions |
| B. | Trigonometry |
| C. | Taylor series |
| D. | Fractals |
| Answer» B. Trigonometry | |
| 5. |
What is the correct statement about FM modulation index? |
| A. | increases with both modulation frequency and deviation |
| B. | decreases with modulation frequency and increases with deviation |
| C. | it increase with modulation frequency and decreases with deviation |
| D. | it is equal to twice the deviation |
| Answer» C. it increase with modulation frequency and decreases with deviation | |
| 6. |
In SC in DSB-SC stands for ________? |
| A. | suppressed-carrier |
| B. | single-carrier |
| C. | sideband-carrier |
| D. | super-carrier |
| Answer» B. single-carrier | |
| 7. |
An amplitude modulated system requires less bandwidth than single side band system. |
| A. | True |
| B. | False |
| Answer» C. | |
| 8. |
In amplitude modulated system, total sideband power is ________ than the carrier power. |
| A. | always less |
| B. | always more |
| C. | sometimes more |
| D. | sometimes less |
| Answer» C. sometimes more | |
| 9. |
If we compared to the USB, the information in LSB is ________ |
| A. | different to USB |
| B. | twice of USB |
| C. | same as USB |
| D. | half of USB |
| Answer» D. half of USB | |
| 10. |
How many sidebands is produced with a single tone in an amplitude modulated system? |
| A. | One |
| B. | Two |
| C. | Three |
| D. | Four |
| Answer» C. Three | |
| 11. |
Only audio can be sent using Amplitude Modulation. |
| A. | True |
| B. | False |
| Answer» C. | |
| 12. |
What is the full form of PEP in communication? |
| A. | Peak Efficiency Power |
| B. | Peak Envelope Power |
| C. | Peak Efficiency Product |
| D. | Peak Envelope Power |
| Answer» E. | |