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of an approach coupler to the Category II DH.
452 题目：When using cabin heat in light single-engined aircraft it should be
remembered that
A： the use of ful l cabin heat during take-of f can degrade the aircrafts take-off
performance
B： there is a possibi l ity that carbon monoxide can be introduced directly into
the cockpit through exhaust leaks in the heart exchanger
C： cabin heat should be used in cruising f l ight only, and never in cl imbs or
descents
453 题目：What is the principal advantage of a sweepback design wing over a
straight wing design?
A： The critical Mach number wi l l increase signi f icantly.
B： Sweepback wi l l increase changes in the magnitude of force coef f icients due
to compressibi l ity
C： Sweepback wi l l accelerate the onset of compressibi l ity ef fect
454 题目： In sensing the orientation of the body in space, the brain assigns the
highest priority to information coming from
A： the eyes
B： the inner
C： the proprioceptive system
目：When a fl ight engineer is a required crewmember on a f l ight, it is necessary for
A： one pi lot to hold a f l ight engineer certi f icate and be qual i fied to perform the
f l ight engineer duties in an emergency
B：the fl ight engineer to be properly certi f icated and qual i f ied, but also at least
one other f l ight crewmember must be qual i f ied and certi fied to perform f l ight
engineer duties
C： at least one other f light crewmember to be qual i fied to perform f l ight
engineer duties, but a certif icate is not required
455 题目： Under what condition is VMC the highest?
A： Gross weight is at the maximum al lowable value.
B： CG is at the most rearward al lowable position.
C： CG is at the most forward al lowable position.
456 题目： The leading edge of an advancing cold air mass is
51
A：warm front
B： stationary front
C： cold front
457 题目： [Refer to Figures 4-50,4-51,4-52,4-53, and 4-54.] What is the total fuel
required at .80 Mach?
A： 22,836 pounds
B： 22,420 pounds
C： 22,556 pounds
458 题目：Which is a necessary condition for the occurrence of a low-level
temperature inversion wind shear?
A： the temperature di f ferential between the cold and warm layers must be at
least 10℃ .
B： a calm or light wind near the surface and a relatively strong wind just above
the inversion.
C： a wind direction di f ference of at least 30℃ between the wind near the
surface and the wind just above the inversion.
459 题目： [Refer to Figure 4-29.] What is the change of total drag for a
140,000-pound airplane when conf igurat ion is changed from f laps 25o, gear down,
to f laps 0o, gear up, at a constant airspeed of 165 knots?
A： 9,500 pounds.
B： 10,400 pounds.
C： 11,300 pounds.
460 题目： A strong wind shear can be expected
A： on the low pressure side of a 100-knot jetstream core.
B：where the horizontal wind shear is 15 knots, in a distance equal to
2.5?longitude.
C： if the 5°C isotherms are spaced 100 NM or closer together
461 题目：What is the advantage of a three-bar VASI?
A： Pilots have a choice of gl ide angles
B： A normal gl ide angle is afforded both high and low cockpit aircraft.
C：The three-bar VASI is mush more visible and can be used at a greater height.
462 题目： The decision-making process is quite complex; however, it can be
condensed into six elements, using the acronym DECIDE. The f irst D is
A： Detect the fact that a change has occurred
B： Do the necessary action to adapt to the change
C： Do what we must to do in the situation
463 题目： The static organ is responsible for the perception of linear acceleration.
The statement is
A： right
B：wrong.
464 题目： (Refer to Figure 6-5) What is the MSA on the airway B215 between
TAIYUAN and DAWANGZHUANG?
A： FL 10,100 feet
B： FL 8,100 feet
C： FL 39,400 feet
465 题目：(Refer to Figure 6-6) Using an average ground speed of 150 knots, what minimum indicated
rate of climb must be maintained to meet the required climb gradient of 5% to 4,930 as specified
on the SID?
A：760 feet/minute.
52
B：851 feet/minute.
C：699 feet/minute
466 题目：What is the minimum number of f l ight attendants required on an airplane
with a passenger seating capacity of 333 when 46 passengers are aboard?
A： Seven
B： Five
C： Three
467 题目：Which are the only cloud types forecast in the Terminal Aerodrome
Forecast
A： Altocumulus
B： Cumulonimbus
C： Stratocumulus
468 题目： the purpose of diluting ethylene glycol deicing fluid with weather in
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