NIFE AERODYNAMICS EXAM
QUESTIONS AND ANSWERS 100%
PASS
define vector - ✔✔represents magnitude and direction
define air density - ✔✔the amount of air mass per unit volume
define moment - ✔✔a vector quantity of a force applied perpendicularly over a distance
state the requirements for an airplane to be in equilibrium flight - ✔✔the sum of all
forces and moments around the center of gravity equals zero
state the requirements for an airplane to be in trimmed flight - ✔✔the sum of all
moments are equal to zero
describe the relationship between temperature and altitude - ✔✔as altitude increases,
temperature decreases
describe the relationship between humidity and air density - ✔✔as humidity increases,
density decreases
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, state the general gas law - ✔✔P=pRT (pressure = density*constant*temperature)
define steady airflow - ✔✔airflow with constant pressure, density, temperature, and
velocity
explain the continuity equation - ✔✔area1*velocity1=area2*velocity2
explain Bernoulli's Equation, given dynamic pressure, static pressure, and total pressure
- ✔✔total pressure = static pressure + dynamic pressure (1/2*density*velocity^2)
explain the different types of airspeeds - ✔✔indicated (IAS) - velocity from the cockpit
calibrated (CAS) - IAS corrected for instrument error
equivalent (EAS) - CAS corrected for compressibility
true (TAS) - EAS corrected for density
ground (GS) - TAS corrected for wind
define mean camber line - ✔✔the halfway point between the upper and lower surface of
an airfoil
define chord - ✔✔the distance of a line straight through from the leading to trailing
edge
define camber and camber types - ✔✔the max distance between MCL and chordline.
positive - produces lift at 0 AOA
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QUESTIONS AND ANSWERS 100%
PASS
define vector - ✔✔represents magnitude and direction
define air density - ✔✔the amount of air mass per unit volume
define moment - ✔✔a vector quantity of a force applied perpendicularly over a distance
state the requirements for an airplane to be in equilibrium flight - ✔✔the sum of all
forces and moments around the center of gravity equals zero
state the requirements for an airplane to be in trimmed flight - ✔✔the sum of all
moments are equal to zero
describe the relationship between temperature and altitude - ✔✔as altitude increases,
temperature decreases
describe the relationship between humidity and air density - ✔✔as humidity increases,
density decreases
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, state the general gas law - ✔✔P=pRT (pressure = density*constant*temperature)
define steady airflow - ✔✔airflow with constant pressure, density, temperature, and
velocity
explain the continuity equation - ✔✔area1*velocity1=area2*velocity2
explain Bernoulli's Equation, given dynamic pressure, static pressure, and total pressure
- ✔✔total pressure = static pressure + dynamic pressure (1/2*density*velocity^2)
explain the different types of airspeeds - ✔✔indicated (IAS) - velocity from the cockpit
calibrated (CAS) - IAS corrected for instrument error
equivalent (EAS) - CAS corrected for compressibility
true (TAS) - EAS corrected for density
ground (GS) - TAS corrected for wind
define mean camber line - ✔✔the halfway point between the upper and lower surface of
an airfoil
define chord - ✔✔the distance of a line straight through from the leading to trailing
edge
define camber and camber types - ✔✔the max distance between MCL and chordline.
positive - produces lift at 0 AOA
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