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A.an abrupt change from a climb to straight and level flight
B.an aircraft which has been in a shallow turn for some time rolls back to level flight
C.an abrupt recovery or a rapid correction is made.
C X
268..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
269..Where does a prohibited airspace be set up?
A.Over domestic only.
B.Over open sea.
C.Over domestic or open sea.
A X
270..Hazardous vortex turbulence that might be encountered behind large aircraft is created only when that
aircraft is
A. Developing lift.
B. Operating at high airspeeds.
C. Using high power settings.
A X
271..Below FL180, en route weather advisories should be obtained from an FSS on
A.122.1MHz
B.122.0MHz
C.123.6MHz
B X
272..Under what condition does ATC issue safety alerts?
A. When collision with another aircraft is imminent.
B. If the aircraft altitude is noted to be in close proximity to the surface or an obstacle.
C. When weather conditions are extreme and wind shear or large hail is in the vicinity.
B X
273..What action is expected of an aircraft upon landing at a controlled airport?
A. continue taxiing in the landing direction until advised by the tower to switch to ground control frequency.
B. exit the runway at the nearest suitable taxiway and remain on tower frequency until instructed otherwise
C. exit the runway at the nearest suitable taxiway and switch to ground control upon crossing the taxiway holding
lines.
B X
274..An authoritative leader
A.tends to make final decisions in an emergency, but seldom in other situations
B.tends to make all team decisions and controls all resources
C.may ultimately decide the team's actions, but seldom takes into consideration the team members' experience,
knowledge, and preferences.
B X
275..Upon which factor does wing loading during a level coordinated turn in smooth air depend?
26
A.Rate of turn
B.Angle of bank
C.True airspeed
B X
276..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
277.[Refer to Figure 4-37.] How many minutes of dump time is required to reach a weight of 144,500 pounds?
Initial weight: 180,500 lb,Zero fuel weight: 125,500 lb
A.13 minutes.
B.15 minutes.
C.16 minutes.
B X
278..How are smoke cleared or dispersed?
A.By wind or the movement of air.
B.By convective mixing in cool night air.
C.By evaporation similar to the clearing of fog.
A X
279..(Refer to Figure 2-10) This is an example of
A.An ILS Critical Area Holding Position Sign
B.A runway Boundary Sign
C.An ILS Critical Area Boundary Sign
C X
280..[Refer to Figures 4-46, 4-47 and 4-48.] What are the fuel requirements from Chicago Midway Airport to
Greater Buffalo Intl?
A.2,224 pounds.
B.1,987 pounds.
C.1,454 pounds.
A X
281..What instrument flight time may be logged by a second-in-command of an aircraft requiring two pilots?
A.All of the time the second-in-command is controlling the airplane solely by reference to flight instruments.
B.One-half the time the flight is on an IFR flight plan.
C.One-half the time the airplane is in actual IFR conditions.
A X
282..(Refer to Figure 2-6) Which RMI illustration indicates the aircraft is southwest of the station and moving
closer TO the station?
A.1
B.2
C.3
A X
283..Which is a necessary condition for the occurrence of a low-level temperature inversion wind shear?
A.the temperature differential 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 difference of at least 30℃ between the wind near the surface and the wind just above the
inversion.
B X
284..In the friction layer of the northern hemisphere, the wind of low pressure area is.
A. clockwise inbound wind
B.counter clockwise outbound wind
C.counter clockwise inbound wind
C X
285..What aural and visual indications should be observed over an ILS inner marker?
A. Continuous dots at the rate of six per second.
B. Continuous dashes at the rate of two per second.
C. Alternate dots and dashes at the rate of two per second.
　
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