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Airplane upset recovery: stalls, angle of attack and energy
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Questions in this quiz (18)
11. The predominant number of airplane upsets are caused by:
- Aa. Environmental factors.
- Bb. Airplane system anomalies.
- Cc. Pilot-induced factors.
22. Most of the multiengine turbojet loss-of-control incidents that are caused by environmental factors are because of:
- Aa. Microbursts.
- Bb. Windshear.
- Cc. Airplane icing.
- Dd. Wake turbulence.
33. Technology in modern airplanes reduces the flight crew workload. Therefore, while initiating the
recovery from an airplane upset, the pilot should:- Aa. Verify that the autopilot and autothrottles are still engaged.
- Bb. Engage the autopilot and autothrottles, if disengaged.
- Cc. Reduce the level of automation by disengaging the autopilot and autothrottles.
- Dd. Ask the other pilot “What is it doing now?”
44. Which of the following statements regarding energy is true?
- Aa. Kinetic energy decreases with increasing airspeed.
- Bb. Potential energy is approximately proportional to airspeed.
- Cc. Chemical energy remains constant throughout a flight.
- Dd. Kinetic energy can be traded for potential energy, and potential energy can be traded for kinetic energy.
55. The objective in maneuvering the airplane is to manage energy so that:
- Aa. Kinetic energy stays between limits (stall and placards).
- Bb. Potential energy stays between limits (terrain to buffet altitude).
- Cc. Chemical energy stays above certain thresholds (not running out of fuel).
- Dd. All of the above.
66. The airplane angle of attack is the angle between the airplane longitudinal axis and the oncoming air.
- ATrue
- BFalse
77. Exceed the critical angle of attack and the surface will stall, and lift will decrease instead of increasing. This is true:
- Aa. Unless the airplane is in a nosedown pitch attitude.
- Bb. Only if the airspeed is low.
- Cc. Only if the airplane is in a nose-high pitch attitude.
- Dd. Regardless of airplane speed or attitude.
88. The angle of attack at which a wing stalls reduces with __ Mach.
- ADecreasing.
- BIncreasing.
99. Airplane stall speeds are published in the Approved Flight Manual for each airplane model. These speeds are presented as a function of
airplane weight. Therefore, if a pilot maintains airspeed above the appropriate speed listed for the airplane weight, the airplane will not
stall.- ATrue.
- BFalse.
1010. Large downward aileron deflections:
- Aa. Could induce air separation over that portion of the wing at very high angles of attack.
- Bb. Should never be used when recovering from an airplane upset.
- Cc. Are more effective at high angles of attack.
1111. Dihedral is the positive angle formed between the lateral axis of an airplane and a line that passes through the center of the wing.
Which of the following statements is incorrect?- Ab. The term “dihedral effect” is used when describing the effects of wing sweep and rudder on lateral stability.
- Ba. Dihedral contributes to airplane lateral stability.
- Cc. A wing with dihedral will develop stable rolling moments with sideslip.
- DIf the relative wind comes from the side of an airplane that has dihedral-designed wings, the wing into the wind is subject to a
decrease in lift
1212. Rudders on modern jet transport airplanes are usually designed and sized to:
- Aa. Create large sideslip capability during recovery from stall.
- Bb. Counter yawing moment associated with an engine failure at very low takeoff speeds.
- Cc. Counter rolling moment created by ailerons and spoilers.
1313. While already at high speed, what happens if Mach is allowed to increase?
- Aa. Airflow over parts of the airplane begins to exceed the speed of sound.
- Bb. Shock waves can cause local airflow separation.
- Cc. Characteristics such as pitchup, pitchdown, or buffeting may occur.
- Dd. All of the above.
1414. Positive static stability is defined as the initial tendency to return to an initial undisturbed state after a disturbance.
- Aa. True
- Bb. False.
1515. Movement about the airplane lateral axis is called:
- AYaw.
- BRoll.
- CPitch.
- DSideslip.
1616. Which of the following statements is always true?
- Aa. Weight points 90 deg from the airplane longitudinal axis.
- Bb. Lift must always be aligned with the center of gravity.
- Cc. Weight always points to the center of the Earth.
- Dd. The center of gravity never changes in flight.
1717. If the engines are not aligned with the airplane center of gravity, a change in engine thrust will:
- Aa. Have no effect on pitching moment.
- Bb. Be accompanied by a change in pitching moment.
1818. To maintain altitude in a banked turn, the lift produced by the airplane must be:
- Aa. Greater than the airplane weight, and the amount is a function of bank angle.
- Bb. Greater than the airplane weight, and the amount is a function of altitude.
- Cc. Equal to the weight of the airplane.
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- Quiz on Untitled, created by Jakobus Pretoriu on 20/06/2016.
- Author
- Jakobus Pretoriu
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- English
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