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Optical Fibers - Optical Communications MCQs

Optical Fibers MCQs : This section focuses on the "Optical Fibers" in Optical Communications. These Multiple Choice Questions (MCQs) should be practiced to improve the Optical Communications skills required for various interviews (campus interview, walk-in interview, company interview), placement, entrance exam and other competitive examinations.

Question 1

Which fiber is used for long-distance transmission?

A. multimode
B. single-mode fiber
C. dual-mode fiber
D. None of the above

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Question 2

The types of optical fibers depend on the?

A. refractive index
B. materials used
C. mode of propagation of light
D. All of the above

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Question 3

Total internal reflection is the principle on which the optical fiber communication is based

C. Can be true or false
D. Can not say

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Question 4

Which of the following is not correct factors that are responsible for generating attenuation of optical power in fiber?

A. Absorption
B. Scattering
C. Organic solvents
D. Waveguide effect

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Question 5

Which of the following is an Advantages of Optical Fibre Communication?

A. Economical and cost-effective
B. Thin and non-flammable
C. Less power consumption
D. All of the above

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Question 6

Multimode step index fiber has ___________

A. Large core diameter and small numerical aperture
B. Large core diameter & large numerical aperture
C. Small core diameter and large numerical aperture
D. Small core diameter & small numerical aperture

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Question 7

_____ THz is the bandwidth of the optical fiber.

A. 100
B. 400
C. 900
D. 1500

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Question 8

Multimode graded index fibers are manufactured from materials with ___________

A. Higher purity than multimode step index fibers.
B. Lower purity
C. No impurity
D. Impurity as same as multimode step index fibers.

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Question 9

Which statistics are used for calculations of strengths of optical fibers?

A. Edwin statistics
B. Newton statistics
C. Gamma statistics
D. Wei-bull statistics

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Question 10

Silica or multi-component glass are used for the fabrication of optical fibers.

C. Can be true or false
D. Can not say

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