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

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Questions
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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