mitchell slop

"Aerospace education is a mission of the Civil Air Patrol. It was derived from a Public Law that was signed into existence on what date?"

"July 1

"What nation leads the world in aerospace technology?"

"United States"

"What is any machine that is capable of flying through the air called?"

"An aircraft"

"Which aircraft is kept aloft by aerodynamic forces upon its wings and thrust forward by a propeller

jet

"The word aerospace is a combination of which two words?"

"Aeronautics and space"

"Which gas makes up the greatest percentage of Earth's atmosphere?"

"Nitrogen"

"If 'sub' means below

'trans' means between

"If a control surface (such as a vertical or horizontal stabilizer) does not move or provide lift

can it still be considered an airfoil?"

"If you mount a ski rack on top of an automobile

it creates aerodynamic ______ and affects gas mileage."

"Forces in motion are said to be ______?"

"Dynamic"

"If the air is dead calm at an airport

can airplanes still fly?"

"When an airplane moves down the runway for takeoff

the flow of air created in the opposite direction is known as the ______?"

"What is the imaginary line connecting the leading and trailing edges of a wing called?"

"Chord line"

"In the myth of Icarus and Daedalus

which error best describes their flight issue? (a. Wax melted

"What significant event occurred on November 21

1783?"

"In 1299 AD

Marco Polo observed sailors from what nation being used as observers aboard kites?"

"A bird is a living ______ machine."

"Flying"

"A large bubble of warm air is used to lift what kind of flying machine?"

"Hot air balloon"

"Who is credited with inventing the hot air balloon?"

"Joseph and Étienne Montgolfier"

"When you learn the Important Terms in Introduction to Aerospace

you are learning a new ______?"

"The action of a bird's wing moving air downward and backward can be compared to a ______ on an airplane."

"Propeller"

"A bird has two primary control surfaces for maneuvering. What are they?"

"Wings and tail"

"When a bird's wings move downward and propel it forward while providing lift

this is an example of which of Newton's laws?"

"The curvature (camber) on the upper surface of a bird's wing creates what kind of lift mechanism?"

"Bernoulli's principle"

"As a fluid (like air) accelerates

its pressure drops. This is an example of whose law?"

"As air flows over the top of a wing and accelerates

what happens to the air pressure?"

"As air passes under a wing

lift generated by air impacting the underside is an example of whose law?"

"What is the imaginary line in an airfoil that connects the leading and trailing edges?"

"Chord line"

"What is the curvature on top of a wing called?"

"Camber"

"What are the two natural forces acting upon an airplane in flight?"

"Gravity and drag"

"What are the two artificial forces acting upon an airplane in flight?"

"Lift and thrust"

"A 160 lb person weighs 1

280 lbs during a high-G maneuver. How many Gs is that?"

"Bicycle helmets have a teardrop/streamlined shape to reduce which natural force?"

"Drag"

"Complete the flight sequence: Power provides [1]

overcoming [2]. The wing accelerates [3]

"The control surfaces on the trailing edge of a paper airplane's wing are called ______?"

"Elevators (or elevons)"

"What are the four ways to increase lift on an airfoil?"

"Increase speed

"Angling a wing upward increases the angle of ______

and exceeding the critical angle causes a loss of lift known as a ______?"

"At what point will a wing stall?"

"When the critical angle of attack is exceeded"

"What does 'burble' mean in aerodynamics

and when does it occur over a wing?"

"Which axis passes through an airplane from nose to tail?"

"Longitudinal axis"

"Which axis passes through an airplane from top to bottom?"

"Vertical axis"

"Which axis passes through an airplane from wingtip to wingtip?"

"Lateral axis"

"Movement around the longitudinal axis (nose to tail) is called ______?"

"Roll"

"Movement around the vertical axis (top to bottom) is called ______?"

"Yaw"

"Movement around the lateral axis (wingtip to wingtip) is called ______?"

"Pitch"

"The point where all three axes intersect is called the ______?"

"Center of gravity"

"Which control surface on an airplane controls roll about the longitudinal axis?"

"Ailerons"

"The elevator causes the nose of the aircraft to move in which direction?"

"Pitch up and down"

"The ailerons cause the aircraft to do what about its longitudinal axis?"

"Roll"

"Which control surface causes the aircraft to yaw about its vertical axis?"

"Rudder"

"What is a single control surface combining an elevator and horizontal stabilizer called?"

"Stabilator"

"When one aileron moves down

what does the other aileron do?"

"A propeller is essentially a wing lifting in which direction?"

"Forward"

"Near the hub of a propeller

the angle of incidence (pitch) is ______ than at the tip."

"The tip of a propeller achieves most of its thrust due to greater ______?"

"Speed (rotational velocity)"

"What is the 'wing' of a propeller called?"

"Blade"

"Fluid motion due to regions of unequal heating is called ______?"

"Convection"

"The ratio between the span of a wing and its chord is called the ______?"

"Aspect ratio"

"The ratio comparing forward distance traveled to altitude lost in a glider is the ______?"

"Glide ratio"

"A column of vertically moving air is known as a ______?"

"Thermal (or updraft)"

"What is the primary energy source driving the motion of Earth's atmosphere?"

"The Sun"

"If sea level temperature is 59°F

what is the average temperature 5

"Using C = 5/9(F - 32)

convert standard sea level temperature (59°F) to Celsius."

"If a glider's wing span is 80 feet and its chord is 4 feet

what is its aspect ratio?"

"If the TG-4A glider has a wingspan of 51 ft and an aspect ratio of 11.85:1

what is its chord width?"

"What effect do dive brakes or spoilers have when deployed on a glider?"

"Increase drag and decrease lift"

"Adding a penny to the nose of a foam glider adds weight ahead of the ______?"

"Center of gravity"

"What is the heat source for filling a hot air balloon envelope called?"

"Burner"

"What lightweight

low-carbon fuel is used in hot air balloon burners?"

"What is the main fabric body of a hot air balloon called?"

"Envelope"

"What physical principle enables a hot air balloon to fly?"

"Buoyancy"

"If a balloon generates ~17-18 lbs of lift per 1

000 cu ft

"With 600 lbs of fixed equipment weight and a 1

200 lb total lift capacity

"What component at the top of a hot air balloon envelope allows hot air release for descent?"

"Parachute valve (or vent)"

"How do hot air balloon pilots steer horizontally?"

"By changing altitude to find different wind directions"

"The exact air-to-fuel ratio where all fuel is burned during combustion is the ______ ratio."

"Stoichiometric"

"An internal combustion engine converts ______ energy into ______ energy."

"Chemical; mechanical"

"What are the four strokes of a four-cycle reciprocating engine?"

"Intake

"In a jet engine

fuel and air are ignited in which stage?"

"Spraying fuel directly into a jet engine's exhaust stream to gain extra thrust is called an ______?"

"Afterburner"

"A fuel-air mixture containing more fuel than needed for normal combustion is called ______?"

"Rich"

"A fuel-air mixture containing less fuel than needed for normal combustion is called ______?"

"Lean"

"In high-wing aircraft

what force feeds fuel from the wing tanks to the engine?"

"What device generates electrical power specifically for an aircraft's spark plugs?"

"Magnetos"

"A recurring sequence of events in an engine is called a ______?"

"Cycle"

"As altitude increases and air thins

what cockpit control reduces fuel flow to maintain the proper ratio?"

"Where are most aircraft carburetors mounted relative to the engine?"

"On the bottom of the engine"

"Air accelerating through a carburetor's restricted section drops in pressure. What is this restriction called?"

"Venturi"

"In a turbofan engine

compressed air enters the combustion chamber

"What are the four operating stages of a jet engine?"

"Intake

"What are the two main functions of engine oil in an aircraft?"

"Lubrication and cooling"

"Which two cockpit instruments monitor the engine's oil system?"

"Oil pressure gauge and oil temperature gauge"

"Which cockpit instrument measures engine rotational speed (RPM)?"

"Tachometer"

"Which three flight instruments operate off the pitot-static system?"

"Airspeed indicator

"Which three flight instruments rely on a spinning gyroscope?"

"Attitude indicator

"Standard sea-level atmospheric pressure of 29.92 inches of mercury equals how many millibars?"

"1013.2 mb"

"As altitude increases in the atmosphere

what happens to barometric pressure?"

"Atmospheric pressure decreases at a rate of approximately ______ inch(es) of mercury per 1

000 feet."

"Which flight instrument measures the rate of altitude change?"

"Vertical Speed Indicator (VSI)"

"Which flight instrument compares ram air pressure against static air pressure?"

"Airspeed indicator"