Optical Fiber Communication Test Questions - Set 2

1)   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  Explanation 

ANSWER: Plastic fiber optic cable

Explanation:
No explanation is available for this question!


2)   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  Explanation 

ANSWER: LSZH

Explanation:
No explanation is available for this question!


3)   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  Explanation 

ANSWER: Impurity atoms in glass material

Explanation:
No explanation is available for this question!


4)   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  Explanation 

ANSWER: All of the above

Explanation:
No explanation is available for this question!


5)   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  Explanation 

ANSWER: square of electric field

Explanation:
No explanation is available for this question!


6)   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  Explanation 

ANSWER: Raman Effect

Explanation:
No explanation is available for this question!


7)   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  Explanation 

ANSWER: Lateral

Explanation:
No explanation is available for this question!


8)   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  Explanation 

ANSWER: C, B, A

Explanation:
No explanation is available for this question!


9)   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  Explanation 

ANSWER: Mechanical

Explanation:
No explanation is available for this question!


10)   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  Explanation 

ANSWER: 0.05

Explanation:
No explanation is available for this question!