AERO 315 GR 1 PREP EXAM QUESTIONS
AND ANSWERS GRADED A+ 2025/2026
Reason for designing new aircraft - ANS response to a need from customer (i.e. changes in
doctrine, politics, existing systems old, and need of new technology)
Steps of Engineering Method - ANS Define the problem
Collect data
Synthesize one or more design concepts
Select best alternatives
Make decision on choice
Describe how EM used in framing and resolving ill-defined problems - ANS Define - problems
for which only partial information is available and more than one solution can be acceptable;
EM helps by assembling and reviewing info you know, creating and analyzing possible solutions
to get info you don't know, and repeat cycle until success
Identify major figures in history of aircraft design and contributions - ANS Chinese first to fly
1 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
, European Joseph-Michel and Jacques-Etienne made built first hot air balloon
Franch Octave Chanute built human gliders
Wright brothers made first sustained flight aircraft
What would be considered by the USAF to be a valid reason for designing a new aircraft? -
ANS National Security requires that we have the newest aircraft in the world
What correctly describes one of the influences World War I had on aviation? - ANS The large
number of trained pilots and inexpensive surplus military aircraft available in the US after the
war led to a vast expansion of aviation activities, enterprises, and public awareness
If you were designing a helicopter to land on the top of Mount Everest, and you did some
research to find out what the atmospheric conditions were there, what step of the Engineering
Method would you be accomplishing? - ANS Collecting Info
What are the four fundamental flow properties that define the condition of a fluid? -
ANS Temperature, Density, Velocity, and Pressure
When a gas is Perfect, or Ideal, what properties can be related in an equation? - ANS Density,
temperature, and pressure
An aircraft's instruments measure an air temperature of 20 degrees C and an air pressure of 95
kPa. What is the air density for these conditions? - ANS 1.13 kg/m3
The most important aspect of dimensionless parameters is their value in establishing -
ANS Similarity
What is the Mach number if your velocity is 800 ft/s and the local speed of sound is 1000 ft/s? -
ANS 0.8
2 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
AND ANSWERS GRADED A+ 2025/2026
Reason for designing new aircraft - ANS response to a need from customer (i.e. changes in
doctrine, politics, existing systems old, and need of new technology)
Steps of Engineering Method - ANS Define the problem
Collect data
Synthesize one or more design concepts
Select best alternatives
Make decision on choice
Describe how EM used in framing and resolving ill-defined problems - ANS Define - problems
for which only partial information is available and more than one solution can be acceptable;
EM helps by assembling and reviewing info you know, creating and analyzing possible solutions
to get info you don't know, and repeat cycle until success
Identify major figures in history of aircraft design and contributions - ANS Chinese first to fly
1 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
, European Joseph-Michel and Jacques-Etienne made built first hot air balloon
Franch Octave Chanute built human gliders
Wright brothers made first sustained flight aircraft
What would be considered by the USAF to be a valid reason for designing a new aircraft? -
ANS National Security requires that we have the newest aircraft in the world
What correctly describes one of the influences World War I had on aviation? - ANS The large
number of trained pilots and inexpensive surplus military aircraft available in the US after the
war led to a vast expansion of aviation activities, enterprises, and public awareness
If you were designing a helicopter to land on the top of Mount Everest, and you did some
research to find out what the atmospheric conditions were there, what step of the Engineering
Method would you be accomplishing? - ANS Collecting Info
What are the four fundamental flow properties that define the condition of a fluid? -
ANS Temperature, Density, Velocity, and Pressure
When a gas is Perfect, or Ideal, what properties can be related in an equation? - ANS Density,
temperature, and pressure
An aircraft's instruments measure an air temperature of 20 degrees C and an air pressure of 95
kPa. What is the air density for these conditions? - ANS 1.13 kg/m3
The most important aspect of dimensionless parameters is their value in establishing -
ANS Similarity
What is the Mach number if your velocity is 800 ft/s and the local speed of sound is 1000 ft/s? -
ANS 0.8
2 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
