AVIA 340 Quiz: Final
Due May 10 at 11:59pm Points 170 Questions 41 Time Limit 90 Minutes
Instructions
The quiz:
Covers the Learn material from Module 1: Week 1 - Module 8: Week 8.
Contains 41 multiple-choice, true/false and essay questions.
Is limited to 90 minutes.
Allows 1 attempt.
Is worth 170 points.
You may refer to your notes and textbooks at any time during the assessment.
Submit this assignment by 11:59 p.m. (ET) on Friday of Module 8: Week 8.
Attempt History
Attempt Time Score
LATEST Attempt 1 71 minutes 122.5 out of 170 ** Some questions not yet graded
Correct answers are hidden.
Score for this quiz: 122.5 out of 170 *
Submitted May 10 at 4:26am
This attempt took 71 minutes.
Question 1
Not yet graded / 30 pts
In 250-300 words, explore one topic in this course that you found most useful to your aviation
career. Is this topic a hazard in aviation? Why has learning about the topic helped you in your
career?
Be specific. Be sure to view the rubric to ensure expectations are meet.
Your Answer:
I learned so much vital information concerning weather systems and its effect on flight safety
that it is hard to pin point just one aspect. Every single weather concept we learned this semester
is extremely useful and will be as I continue to study weather phenomena. The most useful topic
thus far in my brief aviation career has to be that of wind shear and microbursts. Through
researching weather related accidents I was shocked to learn the high number of commercial
aviation crashes that have been caused by these two weather conditions.
I have also had the opportunity to experience the severe downdraft created by wind shear and
microburst. Before this I began this course, I didn't really understand the severity of what I had
experienced on a solo training flight. A storm system popped up suddenly, as they typically are
known to do here on the gulf coast, one early fall afternoon. Knowing I shouldn't be flying in or
around such conditions I returned to the pattern post haste and began my landing checklist.
The storm cell was approximately 15 miles from the airport. Just as I was about to make my
transition to the flare sequence of my landing, I couldn't have been no more than twenty (20) feet
above the runway when all of the sudden it was as if I had hit a brick wall. The winds had
picked up some but nothing so too extreme so I proceeded to land and as I said I hit that wall
about twenty (20) feet above the runway and my ground speed went to nearly a stand still. I
immediately applied full power while carefully lowering the nose of the aircraft so I wouldn't get
caught in a stall situation. Everything worked out and I was able to land without a mishap
occurring but I was visibly shaken. I explained to my instructor what had taken place and he
mentioned a microburst, but until I took this course I didn't understand the microburst
phenomena as I do now.
I knew going into this course that it would be one of the most important classes I would take in
my journey to commercial aviation and I feel that way now that were are in the last days of the
course. I have learned so much but what I truly learned is that more study on weather systems is
in order. In fact, I am going to become a student of weather for the rest of my life because of the
drastic results it can have on an aircrafts ability to fly safely.
Question 2
3.5 / 3.5 pts
Friction force magnitude is directly proportional to wind speed.
True
False
Question 3
3.5 / 3.5 pts
All clouds contain water.
True
False
Question 4
3.5 / 3.5 pts
Pressure is the ratio of any quantity to the volume or area it occupies.
True
False
Question 5
3.5 / 3.5 pts
Water is more resistant to temperature changes than land.
True
False
Question 6
3.5 / 3.5 pts
Density altitude is the pressure altitude corrected for temperature deviations from the standard
atmosphere.
True
False
Question 7
3.5 / 3.5 pts
Greenhouse warming is most enhanced during ____ nights.
overcast
rainy
clear
partly cloudy
Incorrect Question 8
0 / 3.5 pts
Why do commercial airplanes usually fly in the lower stratosphere?
To avoid general aviation traffic
To avoid atmospheric turbulence in the troposphere Incorrect answer
To avoid convection in the troposphere
Both b and c
Question 9
3.5 / 3.5 pts
What is the standard atmosphere value at sea level commonly used for U.S. Aviation?
1013.2 hPa
29.92 inHg
1013.2 mb
14.7 psi
Question 10
3.5 / 3.5 pts
Stable air suppresses vertical motion while unstable air enhances it.
True
False
Question 11
3.5 / 3.5 pts
In what part of the atmosphere are meteors found?
Troposphere
Thermosphere
Mesosphere
Stratosphere
Question 12
3.5 / 3.5 pts
500 millibars is equivalent to 10,000 feet (based on standard temperatures).
True
False
Question 13
3.5 / 3.5 pts
Diurnal temperature variation is the property of the ambient air that either enhances or
suppresses vertical motion of air parcels and determines which type of clouds and precipitation a
pilot will encounter.
True
False
Question 14
3.5 / 3.5 pts
The disadvantages of flying in the stratosphere can include:
increased fuel consumption due to warmer temperatures
increased levels of radiation
increased concentration of ozone
All of the above
Question 15
3.5 / 3.5 pts
A gust is a fluctuation of wind speed with variations of 20 knots or more between peaks and
lulls.
True
False
AVIA 340 Quiz 2
Question 16
3.5 / 3.5 pts
A high pressure system is anticyclonic.
True
False
Question 17
3.5 / 3.5 pts
The standard sea level temperature is 59 degrees Celsius.
True
False
Question 18
3.5 / 3.5 pts
High density altitude shortens a pilot's takeoff and landing rolls.
True
False
Question 19
3.5 / 3.5 pts
Clouds form in the atmosphere as a result of condensation of water vapor in rising currents of air.
True
False
Question 20
3.5 / 3.5 pts
The jetstream are the weakest in the winters for both the Northern and Southern Hemisphere.
True
False
Question 21
3.5 / 3.5 pts
High-level clouds that form above 20,000 feet and are usually composed of ice crystals are
known as ______ clouds.
cumuliform
nimbus
cirriform
stratiform
Question 22
3.5 / 3.5 pts
Which of the following are the ultimate users of aviation weather services:
pilots
aircraft dispatchers
air traffic controllers
all of the above
Question 23
3.5 / 3.5 pts
In the United States, hail is most common across the Great Plains region east of the Rocky
Mountains.
True
False
Question 24
3.5 / 3.5 pts
FSSs provide:
pilot weather briefings
en route weather
receive and process IFR and VFR flight plans
all of the above
Question 25
3.5 / 3.5 pts
Coded and/or plain language information elaborating on data in the body may be appended to the
end of the METAR as "notes."
True
False
Question 26
3.5 / 3.5 pts
Which of the following can happen if an aircraft flies into a volcanic ash cloud?
Ash, made of silica, can adhere to the turbine blades
The aircraft can incur abrasive damage
Ash can contaminate hydraulic, instrument, and electronic systems
All of the above
Question 27
3.5 / 3.5 pts
Pure water suspended in the air does not freeze until it reaches a temperature of -32 °C.
True
False
Question 28
3.5 / 3.5 pts
Which of the following would not be listed in a SIGMET:
Severe icing
Widespread dust storm
Moderate turbulence
Widespread sandstorm
Question 29
3.5 / 3.5 pts
Which of the following is true about Clear Air Turbulence (CAT):
It is a turbulence phenomenon occurring in cloud-free regions associated with wind shear,
particularly between the core of a jet stream and the surrounding air.
It can often affect an aircraft without warning
CAT frequency and intensity are maximized during winter when jet streams are strongest
All of the above
Incorrect Question 30
0 / 3.5 pts
Wind direction may be considered variable when the wind speed was 6 knots or less.
True
False Incorrect answer
Question 31
3.5 / 3.5 pts
The directional variability for wind direction in a METAR is coded in a clockwise direction and
consists of the extremes of the wind directions separated by a "X."
True
False
Question 32
3.5 / 3.5 pts
The highest quantities of super cooled liquid water content (SLWC) can be found in cumuliform
clouds.
True
False
Question 33
3.5 / 3.5 pts
A PIREP listed as UUA means it is:
Routine
Urgent
Not important
None of the above
Question 34
3.5 / 3.5 pts
It can be difficult to distinguish visually between an ash cloud and an ordinary cloud.
True
False
Incorrect Question 35
0 / 3.5 pts
Which of the following are SPECI criteria:
volcanic eruption
RVR Incorect Answer
aircraft mishap
all of the above
Question 36
3.5 / 3.5 pts
The HIWAS broadcast area is defined as the area within 50 NM of HIWAS outlets.
True
False
Question 37
3.5 / 3.5 pts
A mountain obscuration is a condition in which mountains or mountain ridges are obscured due
to clouds, precipitation, smoke, or other obscurations.
True
False
IncorrectQuestion 38
0 / 3.5 pts
Which of the following is not issued by the Aviation Weather Center (AWC):
VAAC
AIRMET
FA
NCWF Incorrect Answer
Question 39
3.5 / 3.5 pts
A __________ consists of a group of cells at various stages of their life cycle.
single cell thunderstorm
supercell thunderstorm
multicell cluster thunderstorm
none of the above
Incorrect Question 40
0 / 3.5 pts
SPECIs are only issued every hour.
True Incorrect
False Correct Answer
Question 41
3.5 / 3.5 pts
The FAA does not approve or qualify Internet providers of aviation weather.
True
