Module 1_3 Quiz

1. Which of the following statements about space waves is most correct?

a) Space waves cannot travel in the atmosphere, only outer space.
b) Space waves always travel in straight lines.
c) Communications satellites use space waves.
d) Space waves are a type of ground wave.
e) c and d are both correct.

2. Which of the following statements about surface waves is most correct?

a) Surface waves refract (bend) off the ionosphere.
b) Surface waves always travel in straight lines.
c) HF radio waves sometimes travel in surface wave mode.
d) Surface waves are a type of ground wave.
e) c and d are both correct.

3. Wich of the following statements about sky waves is the most correct?

a) Sky waves refract (bend) off the ionosphere.
b) Sky waves always travel in straight lines.
c) HF radio waves sometimes travel in sky wave mode.
d) Communication satellites use sky waves.
e)a and c are both correct.