QUESTIONS WITH SOLUTIONS GRADED A+
◉ The objective in maneuvering the airplane is to manage energy so
that:
(A) Kinetic energy stays between limits (stall and placard)
(B) Potential energy sstays between limits (terrain and buffet altitude)
(C) Chemical energy stays above certain thresholds (not running out of
fuel)
(D) All of the above. Answer: (D) All of the above
◉ What is the effect on total drag is airspeed slows below L/D Max?
(A) Drag increases because of increased parasite drag
(B) Drag decreases because of lower induced drag
(C) Drag increases because of increased induced drag. Answer: (C) Drag
increses because of increased induced drag
◉ A jet pilot flying at L/D Max is obtain best:
,(A) Range
(B) Endurance
(C) Ride Quality. Answer: (B) Endurance
◉ When a jet aircraft is flown at the appropriate airspeed for maximum
range, which type of drag predominates?
(A) Parasite
(B) Induced
(C) Each type of drag contributes equally. Answer: (A) Parasite
◉ While already at high speed, what happens if Mach is allowed to
increase?
(A) Airflow over parts of the airplane begin to exceed the speed of sound
(B) Shock waves can cause local airflow separation
(C) Characteristics such as pitch-up, pitch-down, or buffeting may occur.
(D) All of the above. Answer: (D) All of the above
◉ What is the result of a shock-induced separation of airflow occurring
symmetrically near the wing root of a swept wing aircraft?
(A) A high-speed stall and sudden pitch-up
,(B) Severe porpoising.
(C) A severe moment or "Mach Tuck. Answer: (C) A severe moment or
"Mach Tuck
◉ The speed of sound generally decreases with increasing altitude. This
occurs because:
(A) The air temperature decreases.
(B) The air pressure decreases.
(C) The composition of the air changes.. Answer: (A) The air
temperature decreases.
◉ Critical Mach number can be defined as:
(A) The speed at which the aircraft is traveling faster than sound.
(B) The maximum Mach number at which an aircraft may be safely
operated.
(C) The speed of an aicraft in which airflow over any part of the aircraft
or structure first reaches, but doesn't exceed, Mach 1.0.. Answer: (C)
The speed of an aicraft in which airflow over any part of the aircraft or
structure first reaches, but doesn't exceed, Mach 1.0.
, ◉ Stability in the vertical axis tends to drive the sideslip angle toward
zero. The most dynamic stability about the vertical axis on modern jet
transports is from:
(A) The vertical fin
(B) The rudder
(C) An active stability augmentation system/yaw damper
(D) Pilot roll input. Answer: (C) An active stability augmentation
system/yaw damper
◉ Swept wings cause a significant:
(A) increase in effectiveness of flaps.
(B) Reduction in effectiveness of flaps
(C) flap actuation reliability issue. Answer: (B) Reduction in
effectiveness of flaps
◉ Why is convergence of Stall AOA and MMO hazardous?
(A) Any decrease in airspeed will cause the aircraft to buffet and
potentially stall
(B) Any increase in airspeed will cause the aircraft to buffet and
potentially cause Mach Tuck