MCQOPTIONS
Saved Bookmarks
MCQOPTIONS
This section includes 16 Mcqs, each offering curated multiple-choice questions to sharpen your Optical Communication knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
The major advantage of the trans-impedance configuration over the high-impedance front end is ______________ |
| A. | Greater bandwidth |
| B. | Less bandwidth |
| C. | Greater dynamic range |
| D. | Less dynamic range |
| Answer» D. Less dynamic range | |
| 2. |
The mean square thermal noise current in the trans-impedance configuration is _________ greater than that obtained with the high-input-impedance configuration. |
| A. | 30 |
| B. | 20 |
| C. | 15 |
| D. | 10 |
| Answer» C. 15 | |
| 3. |
A high-input-impedance amplifier has following parameters (Total effective load resistance = 2MΩ, Temperature = 300 K). Find the mean square thermal noise current per unit bandwidth for the high-impedance configuration. |
| A. | 8.9×10-27A2/Hz |
| B. | 8.12×10-27A2/Hz |
| C. | 8.29×10-27A2/Hz |
| D. | 8.4×10-27A2/Hz |
| Answer» D. 8.4×10-27A2/Hz | |
| 4. |
A high-impedance amplifier has an effective input resistance of 4MΩ. Find the maximum bandwidth that may be obtained without equalization if the total capacitance is 6 pF and total effective load resistance is 2MΩ. |
| A. | 13.3 kHz |
| B. | 14.2 kHz |
| C. | 15.8 kHz |
| D. | 13.9 kHz |
| Answer» B. 14.2 kHz | |
| 5. |
A_HIGH-IMPEDANCE_AMPLIFIER_HAS_AN_EFFECTIVE_INPUT_RESISTANCE_OF_4M‚ÂÀ√≠¬¨¬©._FIND_THE_MAXIMUM_BANDWIDTH_THAT_MAY_BE_OBTAINED_WITHOUT_EQUALIZATION_IF_THE_TOTAL_CAPACITANCE_IS_6_PF_AND_TOTAL_EFFECTIVE_LOAD_RESISTANCE_IS_2M‚ÂÀ√≠¬¨¬©.?$# |
| A. | 13.3 kHz |
| B. | 14.2 kHz |
| C. | 15.8 kHz |
| D. | 13.9 kHz |
| Answer» B. 14.2 kHz | |
| 6. |
The major advantage of the trans-impedance configuration over the high-impedance front end is ______________$ |
| A. | Greater bandwidth |
| B. | Less bandwidth |
| C. | Greater dynamic range |
| D. | Less dynamic range |
| Answer» D. Less dynamic range | |
| 7. |
The mean square thermal noise current in the trans-impedance configuration is _________ greater than that obtained with the high-input-impedance configuration.$ |
| A. | 30 |
| B. | 20 |
| C. | 15 |
| D. | 10 |
| Answer» C. 15 | |
| 8. |
The trans-impedance front end configuration operates as a __________ with negative feedback. |
| A. | Current mode amplifier |
| B. | Voltage amplifier |
| C. | Attenuator |
| D. | Resonator |
| Answer» B. Voltage amplifier | |
| 9. |
The high-impedance front-end amplifier provides a far greater bandwidth than the trans-impedance front-end. State whether the given statement is true or false? |
| A. | True |
| B. | False |
| Answer» B. False | |
| 10. |
How many receiver structures are used to obtain better receiver characteristics? |
| A. | Two |
| B. | One |
| C. | Four |
| D. | Three |
| Answer» E. | |
| 11. |
How many amplifier configurations are frequently used in optional fiber communication receivers? |
| A. | One |
| B. | Two |
| C. | Three |
| D. | Four |
| Answer» D. Four | |
| 12. |
Noise contributions from the sources should be minimized to maximize the receiver sensitivity. State whether the given statement is true or false. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 13. |
The phase frequency response of the system should be ____________ in order to minimize inter-symbol interference. |
| A. | Non-Linear |
| B. | Linear |
| C. | More |
| D. | Less |
| Answer» C. More | |
| 14. |
____________ is also known as frequency-shaping filter. |
| A. | Resonator |
| B. | Amplifiers |
| C. | Attenuator |
| D. | Equalizer |
| Answer» E. | |
| 15. |
__________ compensates for distortion of the signal due to the combined transmitter, medium and receiver characteristics. |
| A. | Amplification |
| B. | Distortion |
| C. | Equalization |
| D. | Dispersion |
| Answer» D. Dispersion | |
| 16. |
How many circuits are present in an equivalent circuit for the digital optical fiber receiver? |
| A. | Four |
| B. | One |
| C. | Three |
| D. | Two |
| Answer» B. One | |