Quiz 14.1 Practice Quiz: ECE 026-ECE42S1 - Integration Course 3 for ECE
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Quiz 14.1 Prac�ce Quiz
Due May 21 at 11:59pm
Points 9
Questions 9
Available May 20 at 12am - May 21 at 11:59pm
Time Limit 10 Minutes
Allowed Attempts Unlimited
Instruc�ons
This is a practice exam. The result will NOT be recorded.
You will see your score, but the correct answers will not be shown.
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A�empt History
LATEST
Attempt
Time
Score
Attempt 1
10 minutes
3 out of 9
 Correct answers are hidden.
Score for this attempt: 3 out of 9
Submitted May 20 at 6:14pm
This attempt took 10 minutes.
Unanswered
Question 1
0 / 1 pts
The output noise in an amplifier consists of__.
The noise at the communications medium and the internal noise of the
amplifier
5/20/2023, 8:46 PM
Quiz 14.1 Practice Quiz: ECE 026-ECE42S1 - Integration Course 3 for ECE
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The audible and the electrical noise in the environment
The noise at the input and at the communications medium
The noise at the input and the internal noise of the amplifier
Incorrect
Question 2
0 / 1 pts
Which of the following is NOT an advantage of digital over analog
transmission? (1) Better suited for multiplexing (2) Resistant to additive
noise with the use of regeneration (3) Better transmission properties (4)
Simpler to measure and evaluate
None
3 and 4
1 and 3
4 only
Question 3
1 / 1 pts
Calculate the minimum bandwidth required to pass a pulse train without
distortion if its rise time is 4 nanosecond.
87.5 kHz
114.28 kHz
40 kHz
5/20/2023, 8:46 PM
Quiz 14.1 Practice Quiz: ECE 026-ECE42S1 - Integration Course 3 for ECE
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https://tip.instructure.com/courses/40053/quizzes/618566?module_item...
25 kHz
Question 4
1 / 1 pts
In sky wave propagation, when the radiation angle exceeds the critical
angle, __.
It is under normal operation
The signal is lost
The frequency decreases
The frequency increases
Incorrect
Question 5
0 / 1 pts
The wavelength of a wave in a waveguide
is greater than of free space
is directly proportional to the group velocity
depends only on the waveguide dimensions and the free-space
wavelength
is inversely proportional to the phase velocity
5/20/2023, 8:46 PM
Quiz 14.1 Practice Quiz: ECE 026-ECE42S1 - Integration Course 3 for ECE
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Question 6
1 / 1 pts
Sometimes called as Link Margin, is essentially a ͞fudge Factor͟ included
in system gain equations that considers the non ideal and less
predictable characteristics of radio wave propagation and terrain
sensitivity.
Received signal level
Fade margin
Threshold
Free space loss
Unanswered
Question 7
0 / 1 pts
When the angle of elevation is too small, the signals between the earth
station and the satellite __.
passes through much more of the earth's atmosphere
has a maximum value
passes through much less of the earth's atmosphere
will be diffracted
5/20/2023, 8:46 PM
Quiz 14.1 Practice Quiz: ECE 026-ECE42S1 - Integration Course 3 for ECE
5 of 5
Unanswered
Question 8
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0 / 1 pts
The forward power in a transmission line is 5mW. Find the reflected
power if the SWR in the line is 2.7.
3.4 mW
10.88 mW
2.3 mW
1.06 mW
Unanswered
Question 9
0 / 1 pts
The process of adding PDU information as the data travels down the
hierarchy
Packeting
Encapsulation
Framing
Decapsulation
Quiz Score: 3 out of 9
5/20/2023, 8:46 PM