ASSIGNMENT SHEET 2-1-3: BASIC THEORY REVIEW

Justin Vaughan
Quiz by Justin Vaughan, updated more than 1 year ago
Justin Vaughan
Created by Justin Vaughan almost 5 years ago
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Description

This lesson is a basic introduction to the theory of aerodynamics. It provides a knowledge base in aerodynamic mathematics, air properties, airspeed and altitude definitions and measurements, airfoil and wing design, and the importance of center of gravity (CG).

Resource summary

Question 1

Question
A moment is ______.
Answer
  • the force with which a mass is attracted toward the center of the earth
  • the result of mass x acceleration
  • a body’s capacity to do work
  • created when a force is applied at some distance from an axis or fulcrum, producing rotation about that point

Question 2

Question
Mass per unit of volume defines which of the following?
Answer
  • Work
  • Play
  • Density
  • Power

Question 3

Question
Potential energy is ______.
Answer
  • the ability of a body to do work due to its motion
  • dependent on mass and velocity
  • a scalar measure of a body’s capacity to do work
  • the ability of a body to do work due to its position or state of being

Question 4

Question
The Law of Interaction states ______.
Answer
  • “For every action there is an equal and opposite reaction.”
  • “A body at rest tends to stay at rest.”
  • “Two opposite forces cannot interact.”
  • “An unbalanced force acting upon a body produces an acceleration in the direction of the force that is directly proportional to the force and inversely proportional to the mass of the body.”

Question 5

Question
True airspeed will be ______ indicated airspeed at 10,000 feet MSL.
Answer
  • less than
  • equal to
  • greater than
  • not enough information to determine

Question 6

Question
The chord of an airfoil is defined as ______.
Answer
  • the angle between the longitudinal axis and the horizon
  • a measure of the wing along the chordline, from the leading edge to the trailing edge
  • an infinitely long line drawn through the leading and trailing edges of an airfoil
  • the length of a wing

Question 7

Question
Air density is _____ at 10,000 feet compared to ______ feet.
Answer
  • lower/5000
  • equal/5000
  • equal/20,000
  • lower/20,000

Question 8

Question
The altimeter setting for standard day where pressure altitude equals true altitude is ______in-Hg.
Answer
  • 29.92
  • 92.29
  • 92.92
  • 1013.2

Question 9

Question
The center of gravity is the point at which ______.
Answer
  • lift is generated
  • all aerodynamic forces are concentrated
  • elevator authority is lost
  • all weight is concentrated

Question 10

Question
The ______ axis is which the aircraft nose moves left or right about the center of gravity.
Answer
  • center
  • yaw
  • pitch
  • roll
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