WEAX 301_WXQuizMod2
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School
Embry-Riddle Aeronautical University *
*We aren’t endorsed by this school
Course
201
Subject
Geography
Date
Dec 6, 2023
Type
docx
Pages
7
Uploaded by stephanie.moody
Attempt History
Attempt
Time
Score
LATEST
Attempt 1
31 minutes
83.5 out of 100
Correct answers are hidden.
Score for this attempt:
83.5
out of 100
Submitted Oct 24 at 12:56pm
This attempt took 31 minutes.
Question 1
6 / 6 pts
Air pressure and air density both decrease with increasing altitude.
True
False
Question 2
7 / 7 pts
Air is a compressible gas and therefore air pressure and air density are directly
correlated; i.e., if air pressure decreases, air density would also decrease.
True
False
Question 3
7 / 7 pts
Which of the following factors play a role in determining atmospheric pressure? Choose
all that apply:
temperature
air density
elevation
humidity
Question 4
6 / 6 pts
The force that plays the biggest role in the observed vertical structure of air pressure
and air density is:
buoyancy
Coriolis effect
wind
gravity
Question 5
7 / 7 pts
Station pressure readings must be “adjusted to sea level” to:
make surface pressure charts look like topographic maps
properly identify and track surface high and low pressure systems
none of these options are correct
add in the effect of elevation on air pressure
Question 6
6 / 6 pts
Extreme / record-breaking cases aside, a realistic range of sea level pressure values on
Earth is ~950 millibars to ~1050 millibars.
True
False
Question 7
6 / 6 pts
In standard atmospheric conditions, pressure decreases at approximately 1 in. Hg per
1,000 feet through the entire troposphere.
True
False
Question 8
7 / 7 pts
If an altimeter is set properly while on the ground at an airfield, it will indicate an altitude
equal to the airfield elevation.
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True
False
Question 9
7 / 7 pts
An aircraft is flying from a region of warmer temperatures into a region of colder
temperatures. If, along this flight route, the aircraft is holding a constant indicated
altitude, the aircraft's true altitude will_______.
decrease
none of these options are correct
increase
remain constant
Incorrect
Question 10
0
/ 7
pts
A pressure altimeter senses a
_____
in outside air pressure and correlates that to
an
_____
in altitude.
increase; increase
decrease; decrease
increase; decrease
decrease; increase
Question 11
7 / 7 pts
Even low elevation airports can experience high density altitude conditions.
True
False
Question 12
7 / 7 pts
Of the four main forces acting on an aircraft, which TWO are most impacted by changes
in air density?
thrust and drag
drag and weight
lift and thrust
lift and drag
Partial
Question 13
3.5
/ 7
pts
Which of the following are caused by high density altitude?
Choose all that apply:
reduced lift
increased aircraft weight
higher service ceiling
more runway needed for take off
reduced rate of climb
decreased landing roll distances
increased true airspeed for a prescribed indicated airspeed
Incorrect
Question 14
0
/ 6
pts
Density altitude will be higher than the airport elevation when the airport reports _____
than standard pressure and/or _______ than standard temperature.
lower; higher
lower; lower
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higher; lower
higher; higher
Question 15
7 / 7 pts
Which of the following combinations of generalized conditions would result in the highest
value of density altitude?
low elevation, low temperature, low humidity
low elevation, high temperature, low humidity
high elevation, high temperature, high humidity
high elevation, low temperature, high humidity
Quiz Score:
83.5
out of 100