96
884 题目： provisional or modi f ied route are displayed as
A： a sol id white line
B： a dashed white line
C： a dashed magenta l ine
885 题目： A minimum instrument altitude for enroute operations of f of publ ished
airways which provides obstruction clearance of 1,000 feet in nonmountainous
terrain areas and 2,000 feet in designated mountainous areas within the United
States is cal led
A：Minimum Obstruction Clearance Altitude (MOCA).
B： Of f-Route Obstruction Clearance Altitude (OROCA).
C：Minimum Safe/Sector Altitude (MSA).
886 题目：What is the purpose of a control tab?
A：Move the f light controls in the event of manual reversion.
B： Reduce control forces by def lecting in the proper direction to move a
primary f l ight control .
C： Prevent a control surface from moving to a ful l-def lection position due to
aerodynamic forces.
887 题目：What sources ref lect the most accurate information on current and
forecast icing conditions?
A： Low-Level Sig Weather Prog Chart, RADATs, and the Area Forecast.
B： PIREPs, Area Forecast, and the Freezing Level Chart.
C： PIREPs, AIRMETs, and SIGMETs.
888 题目： A commercial operator plans to ferry a large, four-engine,
reciprocating-engine-powered airplane from one faci lity to another to repair an
inoperative engine. Which is an operational requirement for the three-engine
f l ight?
A： The gross weight at takeof f may not exceed 75 percent of the maximum
B：Weather conditions at the takeof f and destination airports must be VFR
C： The computed takeof f distance to reach V1 must not exceed 70 percent of
889 题目： Below that altitude, except when in cruise f light, are non-safety related
cockpit activities by f light crew members prohibited?
A： 3,000 meters.
B： 3,600 meters.
C： 6,000 meters.
890 题目：When cleared for an IFR approach to an uncontrol led airport with no FSS,
what precaution should the pi lot take after being advised to change to advisory
frequency?
A：Monitor ATC for traf f ic advisories as wel l as UNICOM.
B： Broadcast position and intentions on the Common Traf f ic Advisory
Frequency and moni tor the frequency.
C：Wait unti l visual contact is made with the airport and then broadcast
position and intentions to land on UNICOM.
891 题目： A passenger briefing by a crewmember shal l be given, instructing
passengers on the necessity of using oxygen in the event of cabin
depressurization, prior to f light conducted above
A： FL200
B： FL240
C： FL250
892 题目： In which meterolosical condition can f inite a low pressure area from
A：warm front or occlanded fronts
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B： slow-moving cold front or stationary front
C： cold front
893 题目：What is the primary function of the leading edge flaps in landing
conf iguration during the flare before touchdown?
A： prevent flow separation
B： decrease rate of sink.
C： increase prof i le drag.
894 题目：what action should be taken when cleared for approach whi le……
A： descend to min vector alt
B： remain at last assigned altitude unti l establ ish on publ ished route segment
C： descend to initial approach f ix altitude
895 题目：Which ground components are required to be operative for a Category II
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