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Optical Fiber Communication Quiz | Optical Fiber Communication Multiple Choice Questions and Answers

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Free download in PDF Optical Fiber Communication Multiple Choice Questions and Answers for competitive exams. These short objective type questions with answers are very important for Board exams as well as competitive exams. These short solved questions or quizzes are provided by Gkseries.
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(1) By using Springroove splicing technique, what is the value of mean insertion loss for multi mode graded index fiber?
[A] 0.01
[B] 0.03
[C] 0.05
[D] 0.09
Answer: 0.05
(2) Which splicing technique involves the alignment and locking of broken fiber edges by means of positioning devices & optical cement?
[A] Fusion
[B] Mechanical
[C] Both a and b
[D] None of the above
Answer: Mechanical

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(3) Which is the correct order of sequential steps for an electric arc fusion technique?

A. Pressing of fiber ends for fusion

B. Application of heat for smoothening of end-surfaces

C. Alignment of broken fiber edges

[A] A, B, C
[B] B, A, C
[C] C, B, A
[D] C, A, B
Answer: C, B, A
(4) Which kind/s of misalignment assist/s in the reduction of overlap region in fiber?
[A] Angular
[B] Longitudinal
[C] Lateral
[D] All of the above
Answer: Lateral
(5) Which among the following is regarded as an inelastic scattering of a photon?
[A] Kerr Effect
[B] Raman Effect
[C] Hall Effect
[D] Miller Effect
Answer: Raman Effect
(6) In Kerr effect, induced index change has its proportionality with respect to _________
[A] square of electric field
[B] cube of electric field
[C] cube root of electric field
[D] one-fourth power of electric field
Answer: square of electric field
(7) Which among the following represent/s the measure/s to minimize the inhomogenities for Mie scattering reduction?
[A] Extrusion Control
[B] Increase in relative R.I. difference
[C] Removal of imperfections due to glass manufacturing process
[D] All of the above
Answer: All of the above
(8) During the design of FOC system, which among the following reasons is/are responsible for an extrinsic absorption?
[A] Atomic defects in the composition of glass
[B] Impurity atoms in glass material
[C] Basic constituent atoms of fiber material
[D] All of the above
Answer: Impurity atoms in glass material
(9) In multifiber cable system, which form of outer jacket/s consist/s of polyolefin compounds and are regarded as halogen free?
[A] OFNR
[B] OFNP
[C] LSZH
[D] All of the above
Answer: LSZH
(10) Which type of fiber optic cable has/have its/their core with the size of about 480 μm to 980 μm & made up of polymethylmethacrylate (PMMA)?
[A] Glass fiber optic cable
[B] Plastic fiber optic cable
[C] Plastic clad silica fiber optic cable
[D] All of the above
Answer: Plastic fiber optic cable
(11) Which type of photonic crystal fiber exhibit/s its/their similarity to the periodic crystalline lattice in a semiconductor?
[A] Index guiding fiber
[B] Photonic bandgap fiber
[C] Both a and b
[D] None of the above
Answer: Photonic bandgap fiber
(12) Which among the following do/does not support/s the soot formation process?
[A] OVPO
[B] MCVD
[C] PCVD
[D] All of the above
Answer: PCVD
(13) In an optical fiber, the concept of Numerical aperture is applicable in describing the ability of __________
[A] Light Collection
[B] Light Scattering
[C] Light Dispersion
[D] Light Polarization
Answer: Light Collection
(14) If a light travels in a certain medium and it gets reflected off an optically denser medium with high refractive index, then it is regarded as _______
[A] External Reflection
[B] Internal Reflection
[C] Both a and b
[D] None of the above
Answer: External Reflection
(15) What is the typical value of refractive index for an ethyl alcohol?
[A] 1
[B] 1.36
[C] 2.6
[D] 3.4
Answer: 1.36
(16) In single-mode fibers, how does the fraction of energy traveling through bound mode appear in the cladding?
[A] As a crescent wave
[B] As a gibbous wave
[C] As an evanescent wave
[D] All of the above
Answer: As an evanescent wave
(17) Which property/ies of PCM stream determine/s the fidelity to original analog signal?
[A] Sampling rate
[B] Bit depth
[C] Both a and b
[D] None of the above
Answer: Both a and b
(18) For a sine wave, the frequency is represented by the cycles per ______
[A] Second
[B] Minute
[C] Hour
[D] None of the above
Answer: Second
(19) Which among the following is provided by an optical receiver for the regeneration of data signal with minimum error?
[A] Photo-diode
[B] Signal Processing Circuits
[C] Linear Circuitry
[D] None of the above
Answer: Linear Circuitry
(20) In an optical fiber communication system, which among the following is not a typical transmitter function?
[A] Coding for error protection
[B] Decoding of input data
[C] Electrical to optical conversion
[D] Recoding to match output standard
Answer: Recoding to match output standard

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