Basic Aerodynamics Quiz

What is the primary focus of the study of aerodynamics?

• The interaction between a moving object and the atmosphere

• The history of aviation

• The design of aircraft engines

• The chemical composition of the atmosphere

Which layer of the atmosphere is closest to the Earth's surface?

• Thermosphere

• Mesosphere

• Troposphere

• Stratosphere

What is the average temperature at sea level according to the International Standard Atmosphere (ISA)?

• 0 °C

• 15 °C

• 20 °C

• 25 °C

What is the main characteristic of the stratosphere?

• Contains the ozone layer

• It is the densest layer of the atmosphere

• Temperature decreases with altitude

• Weather occurs in this layer

What is the definition of atmospheric pressure?

• The force exerted by the weight of air above a surface

• The density of air at a given altitude

• The humidity level in the atmosphere

• The temperature of the air at sea level

Which gas makes up the largest percentage of the dry atmosphere?

• Carbon Dioxide (CO2)

• Oxygen (O2)

• Nitrogen (N2)

• Argon (Ar)

What happens to atmospheric pressure as altitude increases?

• It increases

• It decreases

• It fluctuates randomly

• It remains constant

What is the upper boundary of the troposphere called?

• Tropopause

• Stratosphere

• Thermopause

• Mesopause

What is the primary reason for the temperature increase in the stratosphere?

• Increased air pressure

• Presence of ozone

• Absence of weather

• Decreased altitude

What is the standard pressure at sea level in hPa?

• 760 hPa

• 1013.25 hPa

• 1000 hPa

• 980 hPa