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Free download in PDF Wireless Communication Multiple Choice Questions with 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.
61
Mobile Assisted Handoff (MAHO) provides
[A]
Faster handoffs
[B]
Suitability for frequent handoffs
[C]
MSC need not monitor the signal strength
[D]
All of the above
62
When all of the radio channels are in use in a trunking system
[A]
The user is blocked
[B]
The access to the system is denied
[C]
The queue may be provided
[D]
All of the above
63
Interference in cellular systems is caused by
[A]
Two base stations operating in same frequency band
[B]
Two calls in progress in nearby mobile stations
[C]
Leakage of energy signals by non cellular systems into cellular frequency band
[D]
All of the above
64
Co-channel reuse ratio depends upon
[A]
Radius of the cell
[B]
Distance between the centers of the co channel cells
[C]
Frequency allocation of nearest cells
[D]
Both a and b
65
The techniques used to improve the capacity of cellular systems are
[A]
Splitting
[B]
Sectoring
[C]
Coverage zone approach
[D]
All of the above
Answer: Random access protocol
66
Distributed antenna systems are used at
[A]
Transmitters of mobile systems
[B]
Transmitters of base stations
[C]
Inputs and outputs of repeaters
[D]
Receivers of mobile stations
Answer: Inputs and outputs of repeaters
67
Antenna down tilting refers to
[A]
Decreasing the S/N ratio at the antenna input
[B]
Decreasing the strength of antenna
[C]
Focusing radio energy towards ground
[D]
All of the above
Answer: Focusing radio energy towards ground
68
The rainbow pattern seen on a CD is an example of
[A]
Reflection
[B]
Refraction
[C]
Diffraction
[D]
None of the above
69
When a wave falls on a perfect conductor
[A]
Wave is partially reflected and partially transmitted
[B]
All incident energy is reflected back without loss of energy
[C]
Part of energy gets absorbed
[D]
Both a and c
Answer: All incident energy is reflected back without loss of energy
70
Brewster angle is the angle at which
[A]
No reflection occurs at the first medium
[B]
Reflection coefficient is zero
[C]
The wave gets refracted in the direction of source
[D]
Both a and b
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