Term
| Bernoulli’s Principle states: “The internal pressure of a fluid ________ at points where the speed of the fluid |
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Definition
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Term
| When air is forced to travel at a faster speed across the top of a wing versus the bottom, this will result in ________ the wing |
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Definition
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Term
| Which statement best expresses Newton’s Third Law of Motion |
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Definition
| For every action, there is an equal and opposite reaction |
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Term
| The three principle airfoils on an aircraft that produce lift are |
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Definition
| wing, propeller, and horizontal tail surfaces |
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Term
| An imaginary straight line drawn from the leading edge to the trailing edge of a cross section of an airfoil is called the |
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Definition
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Term
| The direction of the relative wind is determined by the |
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Definition
| flight path of the aircraft |
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Term
| What force in flight counteracts lift? |
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Definition
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Term
| What is used to determine the angle of attack |
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Definition
| Relative wind and chord line |
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Term
| 9. Actual atmospheric pressure at a given time and place does not depend on which of the following |
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Definition
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Term
| For an aircraft to maintain a constant airspeed and maintain straight and level flight, what must be in balance? |
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Definition
| Thrust and drag; lift and weight |
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Term
| Which are the primary control surfaces on an airplane |
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Definition
| Rudder, ailerons, and elevator |
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Term
| Movement around the vertical axis is controlled by the |
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Definition
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Term
| Movement around the longitudinal axis is called |
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Definition
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Term
| Which action would cause a change in pitch? |
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Definition
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Term
| Which control allows the pilot to relieve manual pressure on the primary controls? |
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Definition
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Term
| At approximately what angle of attack will air no longer flow smoothly over the wing’s upper surface? |
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Definition
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Term
| The most hazardous aspect of structural icing is |
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Definition
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Term
| What type of icing is an aircraft likely to encounter when flying in temperatures above freezing |
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Definition
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Term
| The forces that are acting on a helicopter in flight are lift, thrust, _______, and _______ |
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Definition
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Term
| What term defines a maneuver in which a helicopter is in motionless flight over a reference point, and maintaining a constant heading and altitude |
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Definition
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Term
| What is the basic purpose of the autorotation maneuver in a helicopter |
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Definition
| Provide a controlled landing when the engine is no longer supplying power |
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Term
| The pitch (angle of attack) of a helicopter rotor blade is controlled by the |
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Definition
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Term
| The primary source of lift on an airfoil is created by a differential in ________. |
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Definition
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Term
| The statement, “the internal pressure of a fluid decreases at points where the speed of the fluid increases” is a part of ________. |
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Definition
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Term
| What are the three principle airfoils |
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Definition
| wings, horizontal tail, propeller |
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Term
| What is the curvature of the airfoil from the leading edge to the trailing edge |
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Definition
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Term
| Which two movements are controlled by the control yoke |
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Definition
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Term
| Which of the following is a primary control surface |
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Definition
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Term
| The extension of flaps causes an increase in ________. |
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Definition
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Term
| . Lift is created as air flows smoothly over an airfoil. A stall occurs when the ________ of ________ is exceeded. |
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Definition
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Term
| Air stops flowing smoothly over an airfoil between _________ and ________ degrees angle of attack |
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Definition
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Term
| What are the three primary causes of stalls? |
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Definition
| Airspeed, violent flight maneuvers, wind shear |
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