Top 150+ Solved Broadband Communication Systems MCQ Questions Answer
Q. Who proposed the idea of transmission of light via dielectric waveguide structure?
a. christian huygens
b. karpon and bockham
c. hondros and debye
d. albert einstein
Q. Who proposed the use of clad waveguide structure?
a. edward appleton
b. schriever
c. kao and hockham
d. james maxwell
Q. Which law gives the relationship between refractive index of the dielectric?
a. law of reflection
b. law of refraction (snell’s law).
c. millman’s law
d. huygen’s law
Q. The light sources used in fibre optics communication are :
a. led’s and lasers
b. phototransistors
c. xenon lights
d. incandescent
Q. The ________ ray passes through the axis of the fiber core.
a. reflected
b. refracted
c. meridional
d. shew
Q. Light incident on fibers of angles________the acceptance angle do not propagate into the fiber
a. less than
b. greater than
c. equal to
d. less than and equal to
Q. What is the numerical aperture of the fiber if the angle of acceptance is 16 degree
a. 0.50
b. 0.36
c. 0.20
d. 0.27
Q. The ratio of speed of light in air to the speed of light in another medium is called as_________
a. speed factor
b. dielectric constant
c. reflection index
d. refraction index
Q. When a ray of light enters one medium from another medium, which quality will not change
a. direction
b. frequency
c. speed
d. wavelength
Q. What is the main requirement with the fibers that are intended for splicing?
a. smooth and oval end faces
b. smooth and square end faces
c. rough edge faces
d. large core diameter
Q. In score and break process, which of the following is not used as a cutting tool?
a. diamond
b. sapphire
c. tungsten carbide
d. copper
Q. The heating of the two prepared fiber ends to their fusing point with the application of required axial pressure between the two optical fibers is called as
a. mechanical splicing
b. fusion splicing
c. melting
d. diffusion
Q. Which of the following is not used as a flame heating source in fusion splicing?
a. microprocessor torches
b. ox hydric burners
c. electric arc
d. gas burner
Q. Average insertion losses as low as _________ have been obtained with multimode graded index and single-mode fibers using ceramic capillaries.
a. 0.1 db
b. 0.5 db
c. 0.02 db
d. 0.3 db
Q. _____________ are formed by sandwiching the butted fiber ends between a V-groove glass substrate and a flat glass retainer plate.
a. springroove splices
b. v-groove splices
c. elastic splices
d. fusion splices