Login
or
Register for FREE!
Login
or
Register for FREE!
Subel. 7
1
175 questions
2
99 questions
3
196 questions
4
65 questions
5
143 questions
6
140 questions
7
87 questions
8
55 questions
10 questions
7-01
7-02
7-03
7-04
7-05
7-06
7-07
7-08
Hide Distractors
Hide Distractors
7-01
7-02
7-03
7-04
7-05
7-06
7-07
7-08
Basic
This is an old (expired) question pool. Click here to go to the current version
Subelement 7
Radio Wave Propagation
Section 7-01
line of sight, ground wave, ionospheric wave (sky wave)
7-01-01
What type of propagation usually occurs from one hand- held VHF transceiver to another nearby?
A.
Tunnel propagation
B.
Sky-wave propagation
C.
Auroral propagation
Correct Answer
D.
Line-of-sight propagation
7-01-01
This question does not yet have an explanation!
Register to add one
Tags:
none
7-01-02
How does the range of sky-wave propagation compare to ground- wave propagation?
A.
It is much shorter
B.
It is about the same
C.
It depends on the weather
Correct Answer
D.
It is much
longer
7-01-02
This question does not yet have an explanation!
Register to add one
Tags:
none
7-01-03
When a signal is returned to earth by the ionosphere, what is this called?
A.
Tropospheric propagation
B.
Ground-wave propagation
Correct Answer
C.
Sky-wave propagation
D.
Earth-moon-earth propagation
7-01-03
This question does not yet have an explanation!
Register to add one
Tags:
none
7-01-04
How are VHF signals propagated within the range of the visible horizon?
Correct Answer
A.
By
direct
wave
B.
By sky wave
C.
By plane wave
D.
By geometric wave
7-01-04
This question does not yet have an explanation!
Register to add one
Tags:
none
7-01-05
Skywave is another name for:
Correct Answer
A.
ionospheric
wave
B.
tropospheric wave
C.
ground wave
D.
inverted wave
7-01-05
This question does not yet have an explanation!
Register to add one
Tags:
none
7-01-06
That portion of the radiation which is directly affected by the surface of the earth is called:
A.
tropospheric wave
B.
ionospheric wave
C.
inverted wave
Correct Answer
D.
ground
wave
7-01-06
This question does not yet have an explanation!
Register to add one
Tags:
none
7-01-07
At HF frequencies, line-of-sight transmission between two stations uses mainly the:
A.
troposphere
B.
skip wave
C.
ionosphere
Correct Answer
D.
ground
wave
7-01-07
This question does not yet have an explanation!
Register to add one
Tags:
none
7-01-08
The distance travelled by ground waves:
A.
depends on the maximum usable frequency
B.
is more at higher frequencies
Correct Answer
C.
is
less
at higher frequencies
D.
is the same for all frequencies
7-01-08
This question does not yet have an explanation!
Register to add one
Tags:
none
7-01-09
The radio wave which follows a path from the transmitter to the ionosphere and back to earth is known correctly as the:
A.
F layer
B.
surface wave
Correct Answer
C.
ionospheric
wave
D.
skip wave
7-01-09
This question does not yet have an explanation!
Register to add one
Tags:
none
7-01-10
Reception of high frequency (HF) radio waves beyond 4000 km is generally possible by:
A.
ground wave
Correct Answer
B.
ionospheric
wave
C.
skip wave
D.
surface wave
7-01-10
This question does not yet have an explanation!
Register to add one
Tags:
none
Go to 6-13
Go to 7-02
×
Log in
Sign in with Google
- or -
Stay logged in
Forgot password?
- or -
Continue as guest