Multi Hop Propagation MCQ’s

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This set of Antenna Multiple Choice Questions & Answers (MCQs) focuses on “Multi Hop Propagation”.

1. The propagation of wave from transmitter to receiver by touching ground in between them and goes through different layers is called _____
a) Multi-hop single layer
b) Single hop multi layer
c) Multi hop multi layer
d) Single hop single layer

2. The take-off angle for the curved earth surface is given by ____
a) β = 90 – θi – 57.3d/2R
b) β = 180 – θi
c) β = 180 – θi – 57.3d/2R
d) β = 90 – θi

3. Which of the following propagation is used when the receiver is beyond the skip distance?
a) Single hop
b) Single hop multi layer
c) Multi hop
d) Ground wave

4. Calculate the skip distance for the flat earth when a wave is reflected in an ionosphere at a height of 100km at a take-off angle 10°.
a) 172km
b) 35.26km
c) 17.25km
d) 35.26m

5. The propagation of wave from transmitter to receiver without touching the ground is called as ___
a) Single hop distance
b) Virtual height
c) Actual height
d) Multi-hop

6. Find the take-off angle for the flat earth surface with θi = 75.
a) 15
b) 30
c) 105
d) 75

7. The Upper ray is stronger than the lower ray and is mostly preferred for communication.
a) True
b) False

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