曝光臺(tái) 注意防騙 網(wǎng)曝天貓店富美金盛家居專(zhuān)營(yíng)店坑蒙拐騙欺詐消費(fèi)者

B X
Which direction from the primary control surface dose an
anti-servo tab move?
A.Same direction.
B.Opposite direction.
C.Remains fixed for all positions
A X
Which direction from the primary control surface dose an
elevator adjustable trim tab move when the control surface
is moved?
A.Same direction.
B.Opposite direction.
C.Remains fixed for all positions.
C X
Which flight conditions of a large jet airplane create the
most severe flight hazard by generating wingtip vortices of
the greatest strength?
A. Heavy, slow, gear and flaps up.
B. Heavy, slow, gear and flaps down.
C. Heavy, fast, gear and flaps down.
A X
Which is a purpose of ground spoilers?
A. Reduce the wings lift upon landing
B. Aid in rolling an airplane into turn.
C. Increase the rate of descent with out gaining airspeed.
A X
Which is a purpose of leading-edge slats on high-performance
wings?
A.-Decrease lift at relative slow speeds.
B.-Improve aileron control during low angles of attack.
C.-Direct air from the high pressure area under the leading
edge along the top of the wing.
C X
Which is a purpose of the leading-edge flaps?
A.Increase the camber of the wing.
B.Reduce lift without increasing airspeed.
C.Direct airflow over the top of the wing at high angles of
attack.
A X
Which is a purpose of wing-mounted vortex generators?
A. Reduce the drag caused by supersonic flow over portions
of the wing
B. Increase the onset of drag divergence and aid in aileron
effectiveness at high speed
C. Break the airflow over the wing so the stall will progress
from the root out to the tip of the wing
A X
Which is true regarding the forces acting on an aircraft in
a steady-state descent? The sum of all
A.-upward forces is less than the sum of all downward forces.
B.-rearward forces is greater than the sum of all forces.
C.-forward forces is equal to the sum of all rearward forces.
C X
Which of the following are considered primary flight
controls?
A.Tabs.
B.Flaps.
C.Outboard ailerons.
C X
Which of the following is not the way of increasing MCRIT in
jet transport designs
A. give the wing a lower camber
B. increase wing sweep.
C.add slats
C X
Which statement is true concerning the wake turbulence
produced by a large transport aircraft?
A. Vortices can be avoided by flying 300 feet below and behind
the flight path of the generating aircraft.
B. The vortex characteristics of any given aircraft may be
altered by extending the flaps or changing the speed.
C. Wake turbulence behind a propeller-driven aircraft is
negligible because jet engine thrust is a necessary factor
in the formation of vortices.
B X
while maintaining a constant angle of bank and altitude in
a coordinated turn, an increase in airspeed will
A.decrease the rate of turn resulting in a decreased load
factor.
B.decrease the rate of turn resulting in no change in load
factor
C.increase the rate of turn resulting in no change in load
factor
B X
While making prolonged constant rate turns under IFR
conditions, an abrupt head movement
A.(續(xù)正文， can create the illusion of rotation on an entirely
different axis. This is known as )autokinesis.
B.Coriolis illusion.
C.the leans.
B X
Wingtip vortices created by large aircraft tend to
A. Sink below the aircraft generating the turbulence.
B. Rise from the surface to traffic pattern altitude.
C. Accumulate and remain for a period of time at the point
where the takeoff roll began.
A X
Why do some airplanes equipped with inboard/outboard ailerons
use the outboards for slow flight only?
A.-Increased surface area provides greater controllability
with flap extension.
B.-Aerodynamic loads on the outboard ailerons tend to twist
the wingtips at high speeds.
C.-Locking out the outboard ailerons in high-speed flight
provides variable flight control feel.
B X
Why is it necessary to increase back elevator pressure to
maintain altitude during a turn? To compensate for the
A.loss of the vertical component of lift
B.loss of the horizontal component of lift and the increase
in centrifugal force
C.rudder deflection and slight opposite aileron throughout
the turn
A X
Why must the angle of attack be increased during a turn to
maintain altitude?
A.Compensate for loss of vertical component of lift
B.Increase the horizontal component of lift equal to the
vertical component
C.Compensate for increase in drag
　
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