LESSON 1/LEARNING EVENT 1
PRACTICE EXERCISE
Instructions:
Select
the
BEST
response,
and
circle
the
correct
answer.
1.
What is the speed of radio waves?
a.
186,000 miles per second.
b.
186,000,000 miles per second.
c.
300,000 miles per second.
d.
302,808 miles per second.
2.
The frequency range of the VLF band is--
a.
.03 to 3 MHz.
b.
below .03 MHz or below 30 kHz.
c.
30 to 300 MHz.
d.
above 3 MHz.
3.
Which of the following will not reflect radio energy?
a.
Sea water.
b.
Fresh water.
c.
Jungle.
d.
Metal buildings.
4.
Refraction is--
a.
radio energy
entering
and
leaving
a
layer
at
the
same
angle.
b.
similar to radio energy striking a mirror.
c.
similar to disfraction.
d.
radio energy bending upon entering a ionospheric layer and
returning to earth.
13
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