NIFE AERODYNAMICS Exam Questions and Answers With Verified Solutions
2025
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
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
symmetric - produces no lift at 0 AOA
negative - produces negative lift at 0 AOA
define wingspan - ✔✔the distance from wingtip to wingtip
define wing area - ✔✔the surface area from wingtip to wingtip including the fuselage
define chordwise airflow - ✔✔flow from leading edge to trailing edge
define spanwise airflow - ✔✔flow from wing root to wingtip
define pitch attitude - ✔✔rotation about the lateral axis
define flight path - ✔✔the path described by the aircraft through an airmass
define relative wind - ✔✔the apparent airflow experienced by the aircraft
2025
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
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
symmetric - produces no lift at 0 AOA
negative - produces negative lift at 0 AOA
define wingspan - ✔✔the distance from wingtip to wingtip
define wing area - ✔✔the surface area from wingtip to wingtip including the fuselage
define chordwise airflow - ✔✔flow from leading edge to trailing edge
define spanwise airflow - ✔✔flow from wing root to wingtip
define pitch attitude - ✔✔rotation about the lateral axis
define flight path - ✔✔the path described by the aircraft through an airmass
define relative wind - ✔✔the apparent airflow experienced by the aircraft
