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B. low-level prog chart
C. Terminal Aerodrome forecast
(C)
45.Isobars on a surface weather chart represent line of equal pressure
A. at a given atmospheric pressure
B. at the surface
C. reduce to sea level
(C)
46.What effect if any does altitude have on Vmc for an 不增压发动机飞机？
A. Decrease with altitude Increase
B. None
C. Increase with altitude
(A)
3.What condition is necessary for the formation of structural icing in flight?
# supercooled water drops.
4.Which conditions result in the formation of frost?
# Temperature of the collecting surface is below the dew-point and the dew-point is also below freezing
5. A prognostic chart depicts the conditions?
#. forecast to exist at a specific time.
8.What is the safest and most effect takeoff and initial climb 2 engine plane
A. best engine out rate-of climb airspeed while on the ground the lift off and climb at that V;
Vmc then lift off at that speed and climb at 最大angle-of-climb-V;
C. V slight above VMC the lift and climb at the best rate-of-climb-V.
（C）
9. How should 反推propellers be used during landing for maximum effectuates in stop.
A. Gradually increase reverse power to maximum as roll out speed;
B. Select reverse-pitch after landing and lose idle power setting of the engines;
C. Use maximum reverse power as soon as possible after touchdown
C1
0.怎么复飞?
.make a climb turn toward the landing runway…..;
11.What is the primary cause of all changes in the Earth’s weather?
A. change in air pressure over Earth’s surface;
B. Variation of solar energy at surface;
C. Movement of air mass from moist areas to dry areas.
(B)
12高空急流relatives to surface lows and fronts
A. 在lows and crosses both 暖锋和冷锋;
B. at north of the surface systems;
C. south of the low and 暖锋
(B)
13What term describes are elongated areas of lows pressure?
A. hurricane or typhoon;
B. Ridge;
C. Trough
(C)
15.What is the highest speed possible with out supersonic flow over the wing?
A. critical mach No.;
B. initial suffer speed;
C. transonic index
A1
6.Where is the critical altitude of a supercharge-reciprocating engine?
A .the altitude at which maximum allowable BMEP can be obtained;
B. the highest altitude at which a desired manifold pressure can be obtained;
C. highest altitude where the mipfure can be leaned to best power ratio;
B1
7.Which statement is true concerning the wake turbulence produced by a large transport aircraft.
A. wake turbulence behind a propeller driven aircraft is negligible because jet engine thrust is a necessary
factor in the formation of vortices;
B. the vortex characteristic of any given aircraft may be altered by extending the flaps or changing the
speed;
C. vortices can be avoided by flying come be low an behind the flight path of the generating aircraft
(B)
18. Embedded 雷暴
A. 雷暴are obscured by other type of clouds;
B. 雷暴are predicted to develop in a stable air mass;
C. 严重雷暴are embed a squall line.
A2
1.If both the ram air input and drain hole of the pitot system are blocked by ice what airspeed indication
can be expected?
A. constant indicated airspeed during a descent;
B. no variation of indicated airspeed in level flight if large power changes are made;
C. decrease of indicated airspeed during a climb
(B)
22.In addition to the localizer; glide slope; marker beacons; approach lighting and HIRL, which ground
components are required to be operative for a category II instrument approach to a DH below 150 feet
ACL??
A. TDZL;RCLS and RVR;
B. RCLS and REIL;
C. Rader and RVR
(A)
23.How can a airplane produce the same lift in ground effect as when out of ground effect?
A. a higher angle of attack;
B. A lower angle of attack;
C. The same angle of attack.
(B)
24.Under what condition should stalls never be practiced in a twin-engine airplane?
A. with one engine inoperative;
B. with full flaps and gear extended;
C. with climb power on
（A）
26.What is the difference between a visual and a contact approach?
A. a visual approach is initiated by ATC;
B. both are the same;
C. a visual approach is an IFR
c
27.What weather difference is found on each side of a “dry line”?
A. extreme temperature difference.
B. strut versus cumulus clouds.
C. Dew-point difference
C2
8Which area or areas of the northen hemisphere experance a generally East to West movement of
weather system?
A. subtropical only;
B. Arctic only;
C. Arctic and subtropical;
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