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A. Highest altitude where the mixture can be leaned to best power ratio.
B. The highest altitude at which a desired manifold pressure can be obtained.
C. The altitude at which maximum allowable BMEP can be obtained.
B X
727. In a communication process, some characteristics of the sender may affect the encode message.
These conditions include
A. the sender's knowledge, personality, and the ability of he/she make use of the language
B. the sender's skill, attitudes, knowledge, and the social culture system
C. the sender and the receiver's skill, attitudes, knowledge, and the workload
B X
728.. What effect would a light crosswind have on the wingtip vortices generated by a large airplane that
has just taken off?
A. The upwind vortex will tend to remain on the runway longer than the downwind vortex.
B. A crosswind will rapidly dissipate the strength of both vortices.
C. The downwind vortex will tend to remain on the runway longer than the upwind vortex.
A X
729. When a turbine-engine-powered airplane is to be ferried to another base for repair of an inoperative
engine, which operational requirement must be observed?
A. Only the required flight crewmembers may be on board the airplane.
B. The existing and forecast weather for departure, en route, and approach must be VFR.
C. No passengers except authorized maintenance personnel may be carried.
A X
730. If the aircraft enters the strong downdraft burst, where is the aircraft expected to meet the strongest
downdraft?
A. in the center of strong downdraft burst
B. when it enters the strong downdraft burst
C. when leaves the strong downdraft burst
A X
731. In the AIRMET 6 of the Figure 3, which weather phenomenon that influence fly be described.
A. Lines of thunderstorms, fog and rain
B. Nimbostratus, obscured thunderstorms
C. Low ceiling cloud and moderate icing
C X
732. If an ATC controller assigns a speed, which is too fast for the aircraft's operating limitation under the
existing circumstance, what should the pilot do?
A. increase speed to the assigned speed
B. increase speed to the maximum speed at that circumstance
C. advise ATC of the speed that will be used and expect the controller issue new speed.
C X
733.What is the highest speed possible without supersonic flow over the wing?
A. Initial buffet speed.
B. Critical Mach number
C. Transonic index.
B X
734.What action is expected of an aircraft upon landing at a controlled airport?
A. continues 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
735.With the increase of temperature, the airplane's rolling distance will ____when takeoff and landing.
A. remain unchanged
B. increase
C. reduce
B X
736. Under which condition is a flight engineer required as a flight crewmember in CCAR Part 121
operations?
A. If the airplane is being flown on proving flights, with revenue cargo aboard.
B. If the airplane is powered by more than two turbine engines.
C. If required by the airplane's type certificate. .
C X
737.Which passenger announcement(s) must be made after each takeoff?
A. Keep safety belts fastened while seated and no smoking in the aircraft lavatories.
B. Passengers should keep seat belts fastened while seated.
C. How to use the passenger oxygen system and that there is a $1,000 fine for tampering with a smoke
detector.
B X
738.Which component associated with the ILS is identified by the last two letters of the localizer group?
A. Inner marker.
B. Middle compass locator
C. Outer compass locator.
B X
739.What condition is necessary for the formation of structural icing in flight?
A. flying in any clouds
B. Flying in rain.
C. the temperature of the aircraft surface is 0℃ or colder and supercooled water drops.
C X
740.Which is a definition of the term "flight crewmember"?
A. a pilot, flight engineer, or flight navigator assigned to duty in the aircraft during flight time.
B. Any person assigned to perform duty in an aircraft during flight time.
C. Any person assigned to duty in an aircraft during flight except a pilot or flight engineer.
A X
741.Which "rule-of-thumb" may be used to approximate the rate of descent required for a 3 glide path?
A. 5times groundspeed in knots
B. 8times groundspeed in knots
C.10 times groundspeed in knots
　
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