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WorksheetsAERODYNAMICS
Total questions: 16
Worksheet time: 8mins
1. Aspect ratio of a wing is defined as the ratio between the
wingspan and the mean cord.
square of the cord to the wingspan.
wingspan to the wing root.
A wing with a very high aspect ratio (such as a glider) will have
Increased drag
Low stall speed
Poor control qualities
The desired effect of using winglets on aircraft wing tips is to
Optimize dihedral
Reduce aspect ratio
Increase the lift to drag ratio
The purpose of aircraft wing dihedral is to
Increase lateral stability
Increase longitudinal stability
Increase lift coefficient
Which two laws of physics explain the force of LIFT as an airfoil/wing moves through the air?
Newton’s Third Law of Motion and Bernoulli’s Principle
Pascal’s Law and Pythagorean Theorem
The Theory of Relativity and Boyle’s Law
An airplane wing is designed to produce lift resulting from
positive air pressure below and above the wing’s surface.
positive air pressure below the wing’s surface and negative air pressure above the wing’s surface
negative air pressure below the wing’s surface and positive air pressure above the wing’s surface along with the downward deflection of air.
Which angle is determined by the aircraft design and the location of the wing?
Angel of attack
Angle of Axis
Angel of incidence
How is lift generated in a helicopter?
The angle of attack and the relative wind.
The Coriolis effect.
A pressure differential created by rotation of the main rotor blades.
Which of the following statements are correct regarding a helicopter flight controls?
When the cyclic control stick is raised, the blade angle of all the rotor blades increase uniformly.
When the collective control lever is raised, the blade angle of all the rotor blades increases uniformly.
When the collective control lever is raised, the blade angle of the tail rotors blades are increased uniformly.
All helicopters can make a controlled landing in the event of engine failure. This maneuver is known as
Freewheeling flight
Vertical flight
Autorotation
Which of the following statements are correct regarding a helicopter flight controls?
When the cyclic control stick is raised, the blade angle of all the rotor blades increase uniformly.
When the collective control lever is raised, the blade angle of all the rotor blades increases uniformly.
When the collective control lever is raised, the blade angle of the tail rotors blades are increased uniformly.
What is the purpose of the tail rotor on a helicopter
Counteract the rotational force generated by the main rotor system.
Create a force that controls the aircraft around the vertical/yaw axis.
Both A and B are correct.
What is "form drag"?
Main by-product of lift
Disruption of airflow caused by structure such as landing gear.
What is "friction drag"?
Main by product of lift
Roughness on the skin surface
What is "interference drag"?
Main by-product of lift.
Airflow around one part of the airplane that interacts with an adjacent part.
What is "induced drag"?
Roughness of the airplane skin.
The main by-product of lift.
