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Principles of Flight 2019

Total questions: 25

Worksheet time: 7mins

Name
Class
Date
1.
This is the name of the force that tries to pull an aircraft down.
a)
Thrust
b)
Weight
c)
Drag
d)
Lift
2.
This is the name of the force that tries to move an aircraft forward.
a)
Thrust
b)
Weight
c)
Drag
d)
Lift
3.
This is the name of the force that tries to hold an aircraft back.
a)
Thrust
b)
Weight
c)
Drag
d)
Lift
4.
This is the name of the force that tries to push an aircraft up.
a)
Thrust
b)
Weight
c)
Drag
d)
Lift
5.
If the angle of attack becomes too great, this condition can occur.
a)
Dive
b)
Stall
c)
Roll
d)
Yaw
6.
These two forces need to overcome their opposite force in order for an aircraft to fly.
a)
Drag & Weight
b)
Thrust & Weight
c)
Lift & Drag
d)
Lift & Thrust
7.
Which of the following is NOT one of the three primary movement of an aircraft?
a)
Pitch
b)
Roll
c)
Sway
d)
Yaw
8.
What motion occurs on the Vertical Axis?
a)
Pitch
b)
Roll
c)
Sway
d)
Yaw
9.
What motion occurs on the Longitudinal axis?
a)
Pitch
b)
Roll
c)
Sway
d)
Yaw
10.
What motion occurs on the Lateral axis?
a)
Pitch
b)
Roll
c)
Sway
d)
Yaw
11.
Whose Principle is used to describe why flight is possible?
a)
Newton
b)
Descartes
c)
Bernoulli
d)
Pascal
12.
Bernoulli's Principle of Pressure Differential states...
a)
The air moves faster under the wing
b)
The air moves faster over the wing
13.
Faster air movement over an airfoil creates a _________ pressure field, which in turn allows lift.
a)
Higher
b)
Lower
14.
Ailerons are located on the _______ and control __________.
a)
Vertical Stabilizer : Pitch
b)
Wings : Roll
c)
Vertical Stabilizer : Yaw
d)
Wings : Pitch
15.
The Elevator is located on the ________ and controls ___________.
a)
Vertical Stabilizer : Pitch
b)
Horizontal Stabilizer : Yaw
c)
Vertical Stabilizer : Yaw
d)
Horizontal Stabilizer : Pitch
16.
The Rudder is located on the _________ and controls __________.
a)
Vertical Stabilizer : Pitch
b)
Horizontal Stabilizer : Yaw
c)
Vertical Stabilizer : Yaw
d)
Horizontal Stabilizer : Pitch
17.
What two terms are used to determine the Aspect Ratio of an aircraft?
a)
Span & Thrust
b)
Span & Chord
c)
Chord & Yaw
d)
Penn & Teller
18.
This angle refers to the angle the wing is attached to the plane in order to improve stability.
a)
Angle of Attack
b)
Angle of Incidence
c)
Dihedral Angle
d)
Angle of Repose
19.
This angle refers to the angle at which the wings are attached to the fuselage.
a)
Angle of Attack
b)
Angle of Incidence
c)
Dihedral Angle
d)
Angle of Repose
20.
This angle refers to the angle at which the wings cut through the air.
a)
Angle of Attack
b)
Angle of Incidence
c)
Dihedral Angle
d)
Angle of Repose
21.
Given: Symmetrical airfoil, AoA=0. What is the lift generated by the airfoil?
a)
max
b)
min
c)
0
22.
What number is Camber line
a)
1
b)
2
c)
4
23.
What is asymmetrical airfoils
a)
pict. 1
b)
pict. 2
24.
Write down the Lift equation formula
a)
Lift=2 x rho x S x v2 x CL
b)
Lift=1/2 x rho x S x v2 x CL
c)
Lift=1/2 x rho / S x v2 / CL
25.

Airflow over a wing produces pressure differences due to changes in the velocity of the air. This explanation of lift is described by

a)

Bernoulli's Principle

b)

Wright's Theorem

c)

Wilbur's Predicate

d)

Orville's Postulate