MCQOPTIONS
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MCQOPTIONS
This section includes 6 Mcqs, each offering curated multiple-choice questions to sharpen your Optical Communications knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
________________ measurements checks the impurity level in the manufacturing process. |
| A. | Material reflectometry |
| B. | Material absorption loss |
| C. | Material attenuation loss |
| D. | Calorimetric loss |
| Answer» C. Material attenuation loss | |
| 2. |
Which technology is used by the backscatter measurement method? |
| A. | Refraction |
| B. | Francis flat recovery |
| C. | Optical time domain reflectometry |
| D. | Optical frequency |
| Answer» D. Optical frequency | |
| 3. |
Cut-back technique is destructive. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 4. |
___________ are used to allow measurements at a selection of different wavelengths. |
| A. | Diaphragms |
| B. | Spot attenuators |
| C. | Belts |
| D. | Interference filters |
| Answer» E. | |
| 5. |
Determine the attenuation per kilometer for a fiber whose length is 2 km, output voltage is 2.1 V at a wavelength of 0.85 m. The output voltage increases to 10.7 V when the fiber is cut-back to leave 2 metres. Determine the attenuation per km for the fiber at wavelength 0.85 m. |
| A. | 2.8dB/km |
| B. | 3.1dB/km |
| C. | 3.5dB/km |
| D. | 8dB/km |
| Answer» D. 8dB/km | |
| 6. |
What type of light source is usually present in the cut-back method? |
| A. | Tungsten or xenon |
| B. | LED |
| C. | Laser |
| D. | Photo-sensor |
| Answer» B. LED | |