MCQOPTIONS
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MCQOPTIONS
This section includes 15 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. |
What does n denotes in the equation given below, if vc is the crack velocity; A is the constant for the fiber material and KI is the strength intensity factor? |
| A. | Refractive index |
| B. | Stress corrosion susceptibility |
| C. | Strain |
| D. | Young’s modulusView Answer |
| Answer» C. Strain | |
| 2. |
Stress corrosion must be considered while designing and testing optical fiber cables. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 3. |
Calculate percentage strain at break for a Si-O bond with a fracture strength of 3.52*1010Nm-1 and Young’s modulus of 9 *109Nm-1. |
| A. | 3.1 % |
| B. | 2.8 % |
| C. | 4.5 % |
| D. | 3.9 % |
| Answer» E. | |
| 4. |
An Si-O bond with a Young’s modulus of 9*1010Nm-1 have an elliptical crack of depth 7nm. The surface energy is 2.29 J. Estimate fracture stress for silica fiber. |
| A. | 4.32*109Nm-1 |
| B. | 6.32*109Nm-1 |
| C. | 5.2*109Nm-1 |
| D. | 3*109Nm-1 |
| Answer» B. 6.32*109Nm-1 | |
| 5. |
Optical fibers for communication use are mostly fabricated from ___________ |
| A. | Plastic |
| B. | Silica or multicomponent glass |
| C. | Ceramics |
| D. | Copper |
| Answer» C. Ceramics | |
| 6. |
It is not important to cover these optical fibers required for transmission. |
| A. | True |
| B. | False |
| Answer» C. | |
| 7. |
When optical fibers are to be installed in a working environment, the most important parameter to be considered is? |
| A. | Transmission property of the fiber |
| B. | Mechanical property of the fiber |
| C. | Core cladding ratio of the fiber |
| D. | Numerical aperture of the fiber |
| Answer» C. Core cladding ratio of the fiber | |
| 8. |
What does n denotes in the equation given below, if vc is the crack velocity; A is the constant for the fiber material and KI is the strength intensity factor? |
| A. | |
| B. | Refractive index |
| C. | Stress corrosion susceptibility |
| Answer» C. Stress corrosion susceptibility | |
| 9. |
Which statistics are used for calculations of strengths of optical fibers? |
| A. | Edwin statistics |
| B. | Newton statistics |
| C. | Wei-bull statistics |
| D. | Gamma statistics |
| Answer» D. Gamma statistics | |
| 10. |
Stress corrosion must be considered while designing and testing optical fiber cables. State whether the given statement is true or false. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 11. |
Calculate percentage strain at break for a Si-O bond with a fracture strength of 3.52*1010Nm-1 and Young’s modulus of 9 *109Nm-1.$ |
| A. | 3.1 % |
| B. | 2.8 % |
| C. | 4.5 % |
| D. | 3.9 % |
| Answer» E. | |
| 12. |
An Si-O bond with a Young’s modulus of 9*1010Nm-1 have an elliptical crack of depth 7nm. The surface energy is 2.29 J. Estimate fracture stress for silica fiber.$ |
| A. | 4.32*10<sup>9</sup>Nm<sup>-1</sup> |
| B. | 6.32*10<sup>9</sup>Nm<sup>-1</sup> |
| C. | 5.2*10<sup>9</sup>Nm<sup>-1</sup> |
| D. | 3*10<sup>9</sup>Nm<sup>-1</sup> |
| Answer» B. 6.32*10<sup>9</sup>Nm<sup>-1</sup> | |
| 13. |
Optical fibers for communication use are mostly fabricated from |
| A. | Plastic |
| B. | Silica or multicomponent glass |
| C. | Ceramics |
| D. | Copper |
| Answer» C. Ceramics | |
| 14. |
It is not important to cover these optical fibers required for transmission. State whether the given statement is true or false. |
| A. | True |
| B. | False |
| Answer» C. | |
| 15. |
When optical fibers are to be installed in a working environment, the most important parameter to be considered is |
| A. | Transmission property of the fiber |
| B. | Mechanical property of the fiber |
| C. | Core cladding ratio of the fiber |
| D. | Numerical aperture of the fiber |
| Answer» C. Core cladding ratio of the fiber | |