MCQOPTIONS
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MCQOPTIONS
This section includes 12 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. |
Standard single mode fibers (SSMF) are utilized mainly for operation in ___________ |
| A. | C-band |
| B. | L-band |
| C. | O-band |
| D. | C-band and L-band |
| Answer» D. C-band and L-band | |
| 2. |
A fiber which is referred as non-dispersive shifted fiber is? |
| A. | Coaxial cables |
| B. | Standard single mode fibers |
| C. | Standard multimode fibers |
| D. | Non zero dispersion shifted fibers |
| Answer» C. Standard multimode fibers | |
| 3. |
Single mode fibers allow single mode propagation; the cladding diameter must be at least ___________ |
| A. | Twice the core diameter |
| B. | Thrice the core diameter |
| C. | Five times the core diameter |
| D. | Ten times the core diameter |
| Answer» E. | |
| 4. |
The fibers mostly not used nowadays for optical fiber communication system are ___________ |
| A. | Single mode fibers |
| B. | Multimode step fibers |
| C. | Coaxial cables |
| D. | Multimode graded index fibers |
| Answer» B. Multimode step fibers | |
| 5. |
Multimode graded index fibers with wavelength of 0.85 m have numerical aperture of 0.29 have core/cladding diameter of ___________ |
| A. | 62.5 m/125 m |
| B. | 100 m/140 m |
| C. | 85 m/125 m |
| D. | 50 m/125 m |
| Answer» C. 85 m/125 m | |
| 6. |
Multimode graded index fibers have overall buffer jackets same as multimode step index fibers but have core diameters ___________ |
| A. | Larger than multimode step index fibers |
| B. | Smaller than multimode step index fibers |
| C. | Same as that of multimode step index fibers |
| D. | Smaller than single mode step index fibers |
| Answer» C. Same as that of multimode step index fibers | |
| 7. |
The performance characteristics of multimode graded index fibers are ___________ |
| A. | Better than multimode step index fibers |
| B. | Same as multimode step index fibers |
| C. | Lesser than multimode step index fibers |
| D. | Negligible |
| Answer» B. Same as multimode step index fibers | |
| 8. |
Multimode graded index fibers are manufactured from materials with ___________ |
| A. | Lower purity |
| B. | Higher purity than multimode step index fibers. |
| C. | No impurity |
| D. | Impurity as same as multimode step index fibers. |
| Answer» C. No impurity | |
| 9. |
Multimode step index fibers have a bandwidth of ___________ |
| A. | 2 to 30 MHz km |
| B. | 6 to 50 MHz km |
| C. | 10 to 40 MHz km |
| D. | 8 to 40 MHz km |
| Answer» C. 10 to 40 MHz km | |
| 10. |
Multimode step index fiber has a large core diameter of range is ___________ |
| A. | 100 to 300 m |
| B. | 100 to 300 nm |
| C. | 200 to 500 m |
| D. | 200 to 500 nm |
| Answer» B. 100 to 300 nm | |
| 11. |
A typically structured glass multimode step index fiber shows as variation of attenuation in range of ___________ |
| A. | 1.2 to 90 dB km<sup>-1</sup> at wavelength 0.69 m |
| B. | 3.2 to 30 dB km<sup>-1</sup> at wavelength 0.59 m |
| C. | 2.6 to 50 dB km<sup>-1</sup> at wavelength 0.85 m |
| D. | 1.6 to 60 dB km<sup>-1</sup> at wavelength 0.90 m |
| Answer» D. 1.6 to 60 dB km<sup>-1</sup> at wavelength 0.90 m | |
| 12. |
Multimode step index fiber has ___________ |
| A. | Large core diameter & large numerical aperture |
| B. | Large core diameter and small numerical aperture |
| C. | Small core diameter and large numerical aperture |
| D. | Small core diameter & small numerical aperture |
| Answer» B. Large core diameter and small numerical aperture | |