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NIFE - Aero Review Questions with Correct Answers

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NIFE - Aero Review Questions with Correct Answers What is density? - ANSWER-rho (ρ) - mass per unit of volume What happens to density if you increase humidity? - ANSWER-Density decreases (inverse relationship) What's a moment? - ANSWER-Rotational force around a point. What is a moment arm? -...

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  • November 4, 2024
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KaylinHoffman
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NIFE - Aero Review Questions with

Correct Answers


What is density? - ANSWER✔✔-rho (ρ) - mass per unit of volume


What happens to density if you increase humidity? - ANSWER✔✔-Density decreases (inverse

relationship)


What's a moment? - ANSWER✔✔-Rotational force around a point.


What is a moment arm? - ANSWER✔✔-Distance from the force.


How do you find the moment? - ANSWER✔✔-Force x Distance


What is static pressure? - ANSWER✔✔-The amount weight/air molecules above you.


What is the gas law? - ANSWER✔✔-P = ρRT


If pressure remains constant, and density goes up, what happens to temperature? - ANSWER✔✔-It must

go down (Gas Law: P = ρRT)


What four conditions are required for steady airflow? - ANSWER✔✔-Temperature, density, veolcity, and

pressure must remain constant



Copyright © Stuvia International BV 2010-2024 Page 1/9

, Copyright © KAYLIN 2024/2025 ACADEMIC YEAR. ALL RIGHTS RESERVED FIRST PUBLISH NOVEMBER, 2024




Describe the 5 airspeeds - ANSWER✔✔-ICETG: Instrument Air Speed, Calibrated Air Speed, Equivalent Air

Speed, True Air Speed, and Ground Speed


How does the plane determine instrument air speed? - ANSWER✔✔-Pito tube measures total pressure.

Static air ports measure static pressure. Dynamic Pressure = Total - Static --> convert to knots


How is calibrated air speed calculated? - ANSWER✔✔-Indicated air speed adjusted for instrument error


How is equivalent air speed calculated? - ANSWER✔✔-Calibarated air speed adjusted for compressibility


How is true air speed calculated? - ANSWER✔✔-Equivalent air speed adjusted for density


What is true air speed? - ANSWER✔✔-The speed at which the airplane is traveling through the air mass


How is ground speed calculated? - ANSWER✔✔-True air speed adjusted for wind


How does a headwind affect ground speed? - ANSWER✔✔-Slower than true air speed


How does a tail wind affect ground speed? - ANSWER✔✔-Faster than true air speed


At a constant indicated air speed, you are flying at 5,000 ft with a 10kt headwind. You climb to 10,000ft

again with a 10kt head wind. What will happen to ground speed? - ANSWER✔✔-It will increase because

the true air speed increases (density is going down, but indicated air speed is staying the same)


What is the mean camber line? - ANSWER✔✔-Locus of ponts halfway between the upper and lower

surface of the wing




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