MCQOPTIONS
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MCQOPTIONS
This section includes 259 Mcqs, each offering curated multiple-choice questions to sharpen your Electrical Engineering knowledge and support exam preparation. Choose a topic below to get started.
| 251. |
In single mode fibers, which is the most beneficial index profile? |
| A. | step index |
| B. | graded index |
| C. | step and graded index |
| D. | coaxial cable |
| Answer» C. step and graded index | |
| 252. |
Multimode graded index fibers use incoherent source only. |
| A. | true |
| B. | false |
| Answer» C. | |
| 253. |
2 BASIC OPTICAL LAWS AND DEFINITIONS, OPTICAL MODES AND CONFIGURATIONS |
| 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 | |
| 254. |
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 | |
| 255. |
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 | |
| 256. |
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 | |
| 257. |
Multimode step index fiber has a large core diameter of range is |
| A. | 100 to 300 μm |
| B. | 100 to 300 nm |
| C. | 200 to 500 μm |
| D. | 200 to 500 nm |
| Answer» B. 100 to 300 nm | |
| 258. |
A typically structured glass multimode step index fiber shows as variation of attenuation in range of |
| A. | 1.2 to 90 db km-1 at wavelength 0.69μm |
| B. | 3.2 to 30 db km-1 at wavelength 0.59μm |
| C. | 2.6 to 50 db km-1 at wavelength 0.85μm |
| D. | 1.6 to 60 db km-1 at wavelength 0.90μm |
| Answer» D. 1.6 to 60 db km-1 at wavelength 0.90μm | |
| 259. |
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 | |