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Free download in PDF Optical Fiber Communication MCQs 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.
81
Which among the following stages is/are adopted in Splice Loss Experiment?
[A]
Translational
[B]
Rotational
[C]
Both a and b
[D]
None of the above
82
In chromatic dispersion, which parameter for the modulation of the received signal is measured with the help of a vector voltmeter?
[A]
Amplitude
[B]
Frequency
[C]
Phase
[D]
Period
83
For measuring the shape of input pulse in time-domain intermodal dispersion method, the test fiber is replaced by another fiber whose length is less than ___ of the test fiber.
[A]
1%
[B]
5%
[C]
10%
[D]
20%
84
Why is an electrical isolation required between several portions of an electronic circuit?
[A]
Provision of high voltage protection
[B]
Reduction in noise level
[C]
Both a & b
[D]
None of the above
85
Basically, solitons are pulses which propagates through the fiber without showing any variation in ______
[A]
Amplitude
[B]
Velocity
[C]
Shape
[D]
All of the above
86
Which band/s specify/ies the operation range of Erbium doped fiber amplifier (EDFA)?
[A]
By O band
[B]
By C band
[C]
By S band
[D]
All of the above
87
In an optical network, increase in the number of lasers ________the bit rate.
[A]
Increases
[B]
Stabilizes
[C]
Decreases
[D]
None of the above
88
Which among the following parameters is/are decided by the front-end of a receiver?
[A]
Sensitivity
[B]
Bandwidth
[C]
Both a and b
[D]
None of the above
89
Which nature of charge carriers give rise to the current fluctuations thereby resulting into the generation of shot noise?
[A]
Continuous
[B]
Discrete
[C]
Sampled
[D]
All of the above
90
On which factor/s do/does the response time of photodiode depend/s?
[A]
Diffusion time of photo carriers outside the depletion region
[B]
Diffusion time of photo carriers within the depletion region
[C]
RC time constant
[D]
All of the above
91
In an eye-diagram, digital signals with very bad interference resembles the shape of _____
[A]
circle
[B]
rectangle
[C]
triangle
[D]
straight line
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