TOP Air Force Block III Equipment Custodian
Training TEST
Aerodynamics - CORRECT ANSWERS -The study of forces and the resulting motion of objects
through the air.
Fuselage - CORRECT ANSWERS -Main structural unit of an aircraft
Empennage - CORRECT ANSWERS -Commonly called "the tail" of an aircraft
-Consists of the vertical and horizontal stabilizers
Wings - CORRECT ANSWERS -Provide the force of lift when rapidly moving through the air
Landing Gear - CORRECT ANSWERS -Absorbs the shock of landing
-Supports the aircraft in the ground
Power plant - CORRECT ANSWERS -Primary purpose is to supply thrust
Lift - CORRECT ANSWERS -Acts vertically and counteracts the effect of weight
-Key aerodynamic force
Airfoil - CORRECT ANSWERS -Any surface designed to obtain a reaction upon itself (producing
lift) from the air through which it passes through
Bernoulli's Principle - CORRECT ANSWERS -As fluid velocity increases the pressure decreases
-Pressure differential between the upper and lower surfaces of the wing creates an upward force
called lift
Angle of Incidence - CORRECT ANSWERS -The angle formed by the longitudinal axis of the
aircraft and the chord of the wing by the angle at which the wing is attached to the fuselage
,Relative Wind - CORRECT ANSWERS -Direction of the airflow with respect to the wing, created
by motion of the aircraft moving through the air
-However the wind is hitting you
Angle of Attack (AOA) - CORRECT ANSWERS -Angle between the wing chord line and relative
wind
-Meaning the angle between the chord line and flight path
Relationships between AOA and lift - CORRECT ANSWERS -As AOA increased, so does drag
-When air can't flow smoothly over the wing's upper surface, burbling begins
-If continued the wing will stall
Weight - CORRECT ANSWERS -Force of gravity acting downward
-Directly opposes lift
-Never constant (ex. Airdrops, fuel burning)
Thrust - CORRECT ANSWERS -Produced by the engine and overcomes drag
-Forward acting force that opposes drag
Drag - CORRECT ANSWERS -The backward force, caused by the disruption of airflow over
wings, fuselage, and protruding objects
Parasitic Drag - CORRECT ANSWERS -Disruption in the flow of air around the aircraft's surface
Parasitic Form - CORRECT ANSWERS -Created by any structure that protrudes into the relative
wind
Parasitic Interference - CORRECT ANSWERS -Occurs when varied currents of air traveling over
the aircraft's surface meet and interact
Parasitic Skin Friction - CORRECT ANSWERS -Caused by the roughness of the aircraft's skin
surface
,Induced Drag - CORRECT ANSWERS -Main by-product of lift
-Directly related to the angle of attack
Relationship of thrust and drag - CORRECT ANSWERS -During straight and level flight at
constant speed, thrust and drag are equal
-When thrust is increased; it momentarily exceeds drag and airspeed will increase
-Increase in airspeed, drag will also increase
-When thrust is less than drag; aircraft slows down until two forces become equal again
-Drag increase twice as much as airspeed; Double airspeed=quadruple drag
Relationship of lift and weight(gravity) - CORRECT ANSWERS -Lift always acts perpendicular to
the direction of the relative wind
-If lift becomes less than weight, the aircraft will descend
-If lift becomes greater than weight, the aircraft will climb
Wing area affecting lift and drag - CORRECT ANSWERS -Lift and drag are roughly proportional
to the wing area
-The only thing that can change is the shape of the wing itself, like the flaps
Types of airfoils - CORRECT ANSWERS -Positive camber - lower surface had a convex curve
-Negative camber - the lower surface has a concave curve
-Zero camber - the lower surface no curve, strait surface
Flaps and slats affecting lift and drag - CORRECT ANSWERS -Increases the curvature of the
camber on the upper surface and creating a concave lower surface, increasing the lift of the wing
External induced airfoil change - CORRECT ANSWERS -Slight coating of frost or ice on a wing
can cause unsafe conditions
-Airflow is disrupted, and lift capability can be destroyed by changing the camber of the wing
How does airspeed affect lift and drag - CORRECT ANSWERS -Increase in velocity of air passing
over the wing increases lift and drag
, Air Density - CORRECT ANSWERS -Air density increases, lift and drag increases
-Air density decreases, lift and drag decrease
-Affected by pressure, temperature, and humidity
Longitudinal Axis - CORRECT ANSWERS -Nose to tail
-Movement is Roll
-Created by ailerons
Lateral Axis - CORRECT ANSWERS -Wingtip to wingtip or side to side
-Movement is Pitch
-Created by Elevators
Vertical Axis - CORRECT ANSWERS -Top to bottom
-Movement is Yaw
-Created by rudder
Ailerons - CORRECT ANSWERS -Controls roll
-Located on each wing and move simultaneously in opposite directions
Elevator - CORRECT ANSWERS -Controls pitch
-On the trailing edge of the horizontal stabilizer, which forms part of the empennage or tail
Rudder - CORRECT ANSWERS -Controls yaw
-Connected to the trailing edge of the vertical stabilizer
Control Tabs - CORRECT ANSWERS -Moves the aileron, rudder, and elevator by aerodynamic
pressure
Trim Tabs - CORRECT ANSWERS -Small, adjustable surfaces on the trailing edge of the primary
flight controls
Training TEST
Aerodynamics - CORRECT ANSWERS -The study of forces and the resulting motion of objects
through the air.
Fuselage - CORRECT ANSWERS -Main structural unit of an aircraft
Empennage - CORRECT ANSWERS -Commonly called "the tail" of an aircraft
-Consists of the vertical and horizontal stabilizers
Wings - CORRECT ANSWERS -Provide the force of lift when rapidly moving through the air
Landing Gear - CORRECT ANSWERS -Absorbs the shock of landing
-Supports the aircraft in the ground
Power plant - CORRECT ANSWERS -Primary purpose is to supply thrust
Lift - CORRECT ANSWERS -Acts vertically and counteracts the effect of weight
-Key aerodynamic force
Airfoil - CORRECT ANSWERS -Any surface designed to obtain a reaction upon itself (producing
lift) from the air through which it passes through
Bernoulli's Principle - CORRECT ANSWERS -As fluid velocity increases the pressure decreases
-Pressure differential between the upper and lower surfaces of the wing creates an upward force
called lift
Angle of Incidence - CORRECT ANSWERS -The angle formed by the longitudinal axis of the
aircraft and the chord of the wing by the angle at which the wing is attached to the fuselage
,Relative Wind - CORRECT ANSWERS -Direction of the airflow with respect to the wing, created
by motion of the aircraft moving through the air
-However the wind is hitting you
Angle of Attack (AOA) - CORRECT ANSWERS -Angle between the wing chord line and relative
wind
-Meaning the angle between the chord line and flight path
Relationships between AOA and lift - CORRECT ANSWERS -As AOA increased, so does drag
-When air can't flow smoothly over the wing's upper surface, burbling begins
-If continued the wing will stall
Weight - CORRECT ANSWERS -Force of gravity acting downward
-Directly opposes lift
-Never constant (ex. Airdrops, fuel burning)
Thrust - CORRECT ANSWERS -Produced by the engine and overcomes drag
-Forward acting force that opposes drag
Drag - CORRECT ANSWERS -The backward force, caused by the disruption of airflow over
wings, fuselage, and protruding objects
Parasitic Drag - CORRECT ANSWERS -Disruption in the flow of air around the aircraft's surface
Parasitic Form - CORRECT ANSWERS -Created by any structure that protrudes into the relative
wind
Parasitic Interference - CORRECT ANSWERS -Occurs when varied currents of air traveling over
the aircraft's surface meet and interact
Parasitic Skin Friction - CORRECT ANSWERS -Caused by the roughness of the aircraft's skin
surface
,Induced Drag - CORRECT ANSWERS -Main by-product of lift
-Directly related to the angle of attack
Relationship of thrust and drag - CORRECT ANSWERS -During straight and level flight at
constant speed, thrust and drag are equal
-When thrust is increased; it momentarily exceeds drag and airspeed will increase
-Increase in airspeed, drag will also increase
-When thrust is less than drag; aircraft slows down until two forces become equal again
-Drag increase twice as much as airspeed; Double airspeed=quadruple drag
Relationship of lift and weight(gravity) - CORRECT ANSWERS -Lift always acts perpendicular to
the direction of the relative wind
-If lift becomes less than weight, the aircraft will descend
-If lift becomes greater than weight, the aircraft will climb
Wing area affecting lift and drag - CORRECT ANSWERS -Lift and drag are roughly proportional
to the wing area
-The only thing that can change is the shape of the wing itself, like the flaps
Types of airfoils - CORRECT ANSWERS -Positive camber - lower surface had a convex curve
-Negative camber - the lower surface has a concave curve
-Zero camber - the lower surface no curve, strait surface
Flaps and slats affecting lift and drag - CORRECT ANSWERS -Increases the curvature of the
camber on the upper surface and creating a concave lower surface, increasing the lift of the wing
External induced airfoil change - CORRECT ANSWERS -Slight coating of frost or ice on a wing
can cause unsafe conditions
-Airflow is disrupted, and lift capability can be destroyed by changing the camber of the wing
How does airspeed affect lift and drag - CORRECT ANSWERS -Increase in velocity of air passing
over the wing increases lift and drag
, Air Density - CORRECT ANSWERS -Air density increases, lift and drag increases
-Air density decreases, lift and drag decrease
-Affected by pressure, temperature, and humidity
Longitudinal Axis - CORRECT ANSWERS -Nose to tail
-Movement is Roll
-Created by ailerons
Lateral Axis - CORRECT ANSWERS -Wingtip to wingtip or side to side
-Movement is Pitch
-Created by Elevators
Vertical Axis - CORRECT ANSWERS -Top to bottom
-Movement is Yaw
-Created by rudder
Ailerons - CORRECT ANSWERS -Controls roll
-Located on each wing and move simultaneously in opposite directions
Elevator - CORRECT ANSWERS -Controls pitch
-On the trailing edge of the horizontal stabilizer, which forms part of the empennage or tail
Rudder - CORRECT ANSWERS -Controls yaw
-Connected to the trailing edge of the vertical stabilizer
Control Tabs - CORRECT ANSWERS -Moves the aileron, rudder, and elevator by aerodynamic
pressure
Trim Tabs - CORRECT ANSWERS -Small, adjustable surfaces on the trailing edge of the primary
flight controls
