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Cards In This Set
| Front | Back |
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Rising columns of air are called __________.
a. thermals
b. vents
c. gravity
d. relative wind
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A. thermals
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Which aircraft were the first that had directional control?
a. gliders
b. helicopters
c. hot air balloons
d. jets
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A. gliders
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Another word for Bernoullian lift is
a. Newtonian
b. induced
c. reduced
d. mechanical
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B. induced
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The tube used to show what causes air to accelerate when it passes through the middle is called a __________.
a. Bernoulli
b. Venturi
c. Newtonian
d. London
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B. Venturi
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The upper surface of an airplane’s wing has more curvature of _________ than the surface under the wing.
a. suction
b. density
c. chord
d. camber
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D. camber
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Relative wind is also known as __________.
a. low pressure
b. airflow
c. high pressure
d. static
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B. airflow
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Air is a __________ that the wings move through.
a. liquid
b. mechanical device
c. fluid
d. force
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C. fluid
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When you increase the speed of an airplane, more ________ will occur.
a. weight
b. stall
c. lift
d. camber
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C. lift
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For most general aviation wings, stall occurs around __________ degrees.
a. 17
b. 25
c. 10
d. 30
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A. 17
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The nose right, nose left motion is called _______.
a. roll
b. drag
c. pitch
d. yaw
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D. yaw
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The P-47 Thunderbolt has ________ large "paddle blades" to harness over 2,000 horsepower.
a. three
b. five
c. four
d. two
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C. four
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Warm air is __________ than an equal amount of cold air.
a. lighter
b. heavier
c. larger
d. smaller
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A. lighter
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Gliders were used during World War II by the Allies to ________.
a. drop bombs
b. deliver supplies
c. spy on the enemy
d. haul soldiers into battle
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D. haul soldiers into battle
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Divebrakes, on a sailplane, are more conventionally called __________.
a. spoilers
b. engines
c. ailerons
d. flaps
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A. spoilers
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A hot air balloon operates on the principle of ________.
a. inertia
b. dynamics
c. Bernoulli
d. buoyancy
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D. buoyancy
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