WorkSheet 1
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| The acute angle formed by the chord line of a wing and the relative wind is known as the - - longitudinal dihedral angle. - - angle of incidence. - - angle of attack. | show 🗑
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| Wing dihedral, a rigging consideration on most airplanes of conventional design, contributes most to stability of the airplane about its - - longitudinal axis. - -vertical axis. - - lateral axis. | show 🗑
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| Other than the manufacturer maintenance manual what other document could be used to determine the primary flight control surface deflection for an imported aircraft that is reassembled after shipment? - - Aircraft type certificate data sheet. - - Import manual for the aircraft. - - The certificate of airworthiness issued by the importing country. | show 🗑
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| If a pilot reports that an airplane flies left wing heavy, this condition may be corrected by - - increasing the angle of incidence of the left wing or decreasing the angle of incidence of the right wing, or both. - - increasing the dihedral angle of the left wing, or decreasing the dihedral angle of the right wing, or both. - - adjusting the dihedral angle of the left wing so that differential pressure between the upper and lower wing surfaces is increased. | show 🗑
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| show | the vertical axis but not the longitudinal axis.
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| show | pitch
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| As the angle of attack of an airfoil increases, the center of pressure will - - move toward the trailing edge. - - remain stationary because both lift and drag components increase proportionally to increased angle of attack. - - move toward the leading edge. | show 🗑
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| The angle of incidence is that acute angle formed by - - the angular difference between the setting of the main airfoil and the auxiliary airfoil (horizontal stabilizer) in reference to the longitudinal axis of the aircraft. - - a line parallel to the wing chord and a line parallel to the longitudinal axis of the aircraft. - - a line parallel to the wing from root to tip and a line parallel to the lateral axis of the aircraft. | show 🗑
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| show | so that the airplane will have a nose-heavy tendency.
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| show | rudder
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| The elevators of a conventional airplane are used to provide rotation about the - - longitudinal axis. - - lateral axis. - - vertical axis. | show 🗑
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| Washing- in the left wing of a monoplane, for purposes of rigging corrections after a flight test, will have what effect on the lift and drag of that wing? - - Both drag and lift will decrease due to decreased angle of attack. - - Both drag and lift will increase due to increased angle of attack - - the drag will decrease due to the effect of the lift increase R | show 🗑
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| What type of flap system increases the wing area and changes the wing camber? - - Fowler flaps. - - Slotted flaps. - - Split flaps. | show 🗑
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| If the right wing of a monoplane is improperly rigged to a greater angle of incidence than designated in the manufacturer's specifications, it will cause the - - airplane to be off balance both laterally and directionally. - - airplane to pitch and roll about the lateral axis. - - right wing to have both an increased lift and a decreased drag. R | show 🗑
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| The chord of a wing is measured from - - wingtip to wingtip. - - wing root to the wingtip. - - leading edge to trailing edge. | show 🗑
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| When the lift of an airfoil increases, the drag will - - decrease. - - also increase. - - increase while the lift is changing but will return to its original value. | show 🗑
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| show | Thickness and chord
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| Improper rigging of the elevator trim tab system will affect the balance of the airplane about its - - lateral axis. - - longitudinal axis. - - vertical axis. R | show 🗑
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| An airplane that has a tendency to gradually increase a pitching moment that has been set into motion has - - poor longitudinal stability. - - good lateral stability. - - poor lateral stability. | show 🗑
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| The purpose of wing slats is to - - reduce stalling speed - - decrease drag - - reduce lift. | show 🗑
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Created by:
sampizzuto