Fiber Optics MCQ

Fiber Optics MCQ

  • Admin
  • 03rd Jun, 2022

Fiber Optics MCQ Questions

Take Fiber Optics MCQ Test & Online Quiz to Test your Knowledge

Practice below the best Fiber Optics MCQ Questions that check your basic knowledge of Fiber Optics. This Fiber Optics MCQ Test contains 25 Multiple Choice Questions. You have to select the right answer to the question. Apart from this, you can also download the Fiber Optics MCQ PDF below completely free.

Fiber Optic MCQ Questions

1) Fiber optics was invented by .........

  • A. Thomas Mensah
  • B.Thomas Edison
  • C.John Henry Holmes
  • D.None of the above

2) Fiber optic cable operate at frequencies near

  • A. 2 GHz
  • B.20 MHz
  • C.200 MHz
  • D.800 THz

3) Which is the most beneficial index profile in single mode fibers?

  • A. Step index
  • B.Coaxial cable
  • C.Graded index
  • D.Step and graded index

4) Which of the following statistics are used for calculations of strengths of optical fibers?

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

5) The micro-bending losses are depend on ...........

  • A. Diameter
  • B.Core material
  • C.Refractive index
  • D.Mode and wavelength
Download Free : Fiber Optics MCQ PDF

6) Which of the following can induce a considerable amount of attenuation in optical fibers?

  • A. Dispersion
  • B.Micro-bending
  • C.Radiation Exposure
  • D.Diffusion of hydrogen

7) ............. categories exists in case of cable design.

  • A. 2
  • B.3
  • C.4
  • D.5

8) Which of the following is described by the concept of numerical aperture in an optical fibre?

  • A. Light scattering
  • B.Light collection
  • C.Light dispersion
  • D.Light polarisation

9) Which of the following is not a typical transmitter function In an optical fibre communication system?

  • A. Decoding of input data
  • B.Decoding of input data
  • C.Electrical to optical conversion
  • D.Recoding to match output standard

10) ............. are not used nowadays for optical fibre communication system.

  • A. Coaxial cable
  • B.Multimode fibre
  • C.Single-mode fibre
  • D.Multimode graded-index fibres

11) Which component provides additional strength and prevents the fiber from any damage?

  • A. Core
  • B.Cladding
  • C.Buffer Coating
  • D.None of the above

12) Which kind of dispersion phenomenon gives rise to pulse spreading in single mode fibers?

  • A. Material
  • B.Intermodal
  • C.Intramodal
  • D.None of the above

13) Which kind of optical devices are adopted or applicable for routing signals from one waveguide to another?

  • A. Optical Splitter
  • B.Optical Coupler
  • C.Optical Combiner
  • D.None of the above

14) Which of the following method determines the dispersion limitation of an optical link?

  • A. Rise time budget
  • B.Link power budget
  • C.Both A & B

15) Which of the following is the width of the range of wavelengths emitted by the light source?

  • A. Bandwidth
  • B.Beamwidth
  • C.Spectral width
  • D.Chromatic Dispersion

16) When a beam of light enters one medium from another, ........... will not change?

  • A. Speed
  • B.Direction
  • C.Frequency
  • D.Wavelength

17) The wavelength of light has no role in ..........

  • A. Reflection
  • B.Diffraction
  • C.Interference
  • D.Polarization

18) Which kind of dispersion is caused by the difference in the propagation times of light rays that take different paths down a fiber?

  • A. Modal dispersion
  • B.Delay dispersion
  • C.Material dispersion
  • D.Wavelength dispersion

19) Which is the average insertion loss of fusion splice in fiber optics?

  • A. 0.9 dB
  • B.0.19 dB
  • C.0.09 dB
  • D.0.009 dB

20) Which type of fiber has the highest modal dispersion?

  • A. Graded index mode
  • B.Step-index multimode
  • C.Step-index single mode
  • D.Graded index multimode

21) .............. is used as an optical transmitter on the Fiber Optical Communications.

  • A. APD
  • B.LED
  • C.PIN diode
  • D.LSA diode

22) Which of the following is regarded as an inelastic scattering of a photon?

  • A. Hall Effect
  • B.Kerr Effect
  • C.Miller Effect
  • D.Raman Effect

23) Which of the following is responsible for generating attenuation of an optical power in fiber?

  • A. Scattering
  • B.Absorption
  • C.Waveguide effect
  • D.All of the Above

24) In circulator, an optical path of signal follows ...............

  • A. A closed loop
  • B.An open loop
  • C.A double loop
  • D.None of above

25) Which of the following fibers does not used nowadays for optical fiber communication systems?

  • A. Coaxial cable
  • B.Multimode fibre
  • C.Single-mode fibre
  • D.Multimode graded-index fibres

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