LESSON 2
PRACTICE EXERCISE
ANSWER KEY AND FEEDBACK
Item
Correct Answer and Feedback
1.
B.
Jungle terrain
Rocky terrain provides better conductivity for radio wave propagation than jungle
terrain. (page 2-5, Table 2-1)
2.
C.
This region of the atmosphere is the most important because of its use for long-
3.
D.
The power output
The strength of the ground wave at the receiver depends on the power output and
transmission path, and the local weather conditions. (page 2-3, para 3)
4.
C.
A surface wave follows the curvature of the Earth due to the process of
5.
B.
Sea water
Salt water has the best degree of conductivity. (page 2-4, para 3a(4))
6.
A.
Jungle
Jungle terrain is the worst environment. Radio waves are absorbed by jungle
vegetation, reducing transmission range. (page 2-4, para 3a(4))
7.
A.
Increases
The angle of tilt increases as frequency increases. (page 2-5, para 3a(5)
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