Questions and Answers 100% Solved
What is density? - ✔✔rho (ρ) - mass per unit of volume
What happens to density if you increase humidity? - ✔✔Density decreases
(inverse relationship)
What's a moment? - ✔✔Rotational force around a point.
What is a moment arm? - ✔✔Distance from the force.
How do you find the moment? - ✔✔Force x Distance
What is static pressure? - ✔✔The amount weight/air molecules above you.
What is the gas law? - ✔✔P = ρRT
If pressure remains constant, and density goes up, what happens to
temperature? - ✔✔It must go down (Gas Law: P = ρRT)
What four conditions are required for steady airflow? - ✔✔Temperature,
density, veolcity, and pressure must remain constant
Describe the 5 airspeeds - ✔✔ICETG: Instrument Air Speed, Calibrated Air
Speed, Equivalent Air Speed, True Air Speed, and Ground Speed
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, How does the plane determine instrument air speed? - ✔✔Pito tube measures
total pressure. Static air ports measure static pressure. Dynamic Pressure =
Total - Static --> convert to knots
How is calibrated air speed calculated? - ✔✔Indicated air speed adjusted for
instrument error
How is equivalent air speed calculated? - ✔✔Calibarated air speed adjusted for
compressibility
How is true air speed calculated? - ✔✔Equivalent air speed adjusted for density
What is true air speed? - ✔✔The speed at which the airplane is traveling
through the air mass
How is ground speed calculated? - ✔✔True air speed adjusted for wind
How does a headwind affect ground speed? - ✔✔Slower than true air speed
How does a tail wind affect ground speed? - ✔✔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? - ✔✔It will increase because the true air speed increases
(density is going down, but indicated air speed is staying the same)
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