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forward.
B X
What is the condition known as when gusts cause a swept
wing-type airplane to roll in one direction while yawing in
the other?
A.Porpoise.
B.Wingover.
C.Dutch roll
C X
What is the effect on total drag of an aircraft if the airspeed
decreases in level flight below that speed for maximum L/D?
A.Drag increases because of increased induced drag.
B.Drag increases because of increased parasite drag.
C.Drag decreases because of lower induced drag.
A X
What is the primary function of the leading edge flaps in
landing configuration during the flare before touchdown?
A.prevent flow separation.
B.decrease rate of sink.
C.increase profile drag.
A X
What is the principal advantage of a sweepback design wing
over a straight wing design?
A.The critical Mach number will increase significantly.
B.Sweepback will increase changes in the magnitude of force
coefficients due to compressibility.
C.Sweepback will accelerate the onset of compressibility
effect.
A X
What is the purpose of a control tab?
A.Move the flight controls in the event of manual reversion.
B.Reduce control forces by deflecting in the proper direction
to move a primary flight control.
C.Prevent a control surface from moving to a full-deflection
position due to aerodynamic forces.
A X
What is the purpose of a servo tab?
A.Move the flight controls in the event of manual reversion.
B. Reduce control forces by deflecting in the proper direction
to move a primary flight control.
C. Prevent a control surface from moving to a full-deflection
position due to aerodynamic forces.
B X
What is the purpose of an elevator trim tab?
A.Provide horizontal balance as airspeed is increased to
allow hands-off flight.
B.Adjust the speed tail load for different airspeeds in flight
allowing neutral control forces.
C.Modify the downward tail load for various airspeeds in
flight eliminating flight-control pressures.
C X
What is the reason for variations in geometric pitch along
a propeller or rotor blade?
A.It permits a relatively constant angle of attack along its
length when in cruising flight.
B.It prevents the portion of the blade near the hub or root
from stalling during cruising flight.
C.It permits a relatively constant angle of incidence along
its length when in cruising flight.
A X
what is the relationship between induced and parasite drag
when the gross weight is increased?
A.parasite drag increases more than induced drag
B. induced drag increases more than parasite drag
C. both parasite and induced drag are equally increased.
B X
What is the relationship of the rate of turn with the radius
of turn with a constant angle of bank but increasing airspeed?
A.-rate will decrease and radius will increase.
B.Rate will decrease and radius will decrease.
C.Rate and radius will increase.
A X
What is the result of a shock-induced separation of airflow
occurring near the wing root of a swept wing aircraft?
A.-A high-speed stall and sudden pitch up
B.A severe moment or "tuck under"
C.-Severe porpoising
B X
What taxi action is expected of an aircraft upon landing at
a controlled airport?
A. continue taxiing in the landing direction.
B. exit the runway at the any suitable taxiway, or make a 180
degrees turn on the runway if overshot a expect taxiway.
C. exit the runway at the nearest suitable taxiway without
delay.
C X
What true airspeed and angle of attack should be used to
generate the same amount of lift as altitude is increased?
A. The same true airspeed and angle of attack
B. A higher true airspeed for any given angle of attack
C. A lower true airspeed and higher angle of attack
B X
What will be the ratio between airspeed and lift if the angle
of attack and other factors remain constant and airspeed is
doubled? lift will be
A.The same.
B.Two times greater.
C.Four times greater.
C X
When are inboard ailerons normally used?
A.Low-speed flight only.
B.High-speed flight only.
C.Low-speed and high-speed flight.
C X
Which condition would INITIALLY cause the indicated airspeed
and pitch to increase and sink rate to decrease?
A. Sudden increase in a headwind component.
B. Sudden decrease in a headwind component.
C. Tailwind which suddenly increase in velocity.
A X
Which direction from the primary control surface does a servo
tab move?
A.Some direction.
B.Opposite direction.
C.Remains fixed for all positions.
　
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