ANSWERS
Which of the following statements regarding energy is true? - ANS Kinetic energy can be
traded for potential energy, and potential energy can be traded for kinetic energy.
The objective in maneuvering the airplane is to manage energy so that: - ANS All of the
above (objective in maneuvering the airplane)
What is the effect on total drag if airspeed slows below L/Dmax? - ANS Drag increases
because of increased induced drag
A jet pilot flying at L/Dmax will obtain best: - ANS Endurance
When a jet aircraft is flown at the appropriate airspeed for maximum range, which type of drag
predominates? - ANS Parasite
When already at high speed, what happens if Mach is allowed to increase? - ANS All of the
above (what happens if Mach is allowed to increase)
What is the result of a shock-induced separation if airflow occurring symmetrically near the
wing root of a swept wing aircraft? - ANS A severe moment or "Mach tuck"
The speed of sound generally decreases with increasing altitude. This occurs because: -
ANS The air temperature decreases
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, Critical Mach number can be defined as: - ANS The speed of an aircraft in which airflow over
any part of the aircraft or structure first reaches, but doesn't exceed, Mach 1.0
The most dynamic stability about the vertical axis on modern jet transports is from: - ANS An
active stability augmentation system/yaw damper
Swept wings causes a significant - ANS Reduction in effectiveness of flaps
Why is convergence of stall AOA and Mmo hazardous? - ANS All of the above (convergence
of stall AOA hazardous)
To maintain altitude in a banked turn, the lift produced by the airplane must be: -
ANS Greater than the airplane weight, and the amount is a function of bank angle
Excessive bank angles at high altitudes can be hazardous because - ANS All of the above
High altitude recovery from slow flight turning is best accomplished by: - ANS Increasing
thrust to maximum available thrust and reducing bank angle while accelerating to airspeed
above L/D max speed. In a thrust limited situation, exiting slow flight will require an immediate
descent as an aerodynamic stall is imminent
Maximum altitude for an airplane is: - ANS The lowest of the above listed altitudes
Exceed the critical angle of attack and the surface will stall, and lift will decrease instead of
increasing. This is true: - ANS Regardless of airplane speed or attitude
Which of the following statements is true? - ANS Recovery from approach to stall warning is
the same as recovery from a stall
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