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单选题

烟幕和逆温层的正确关系是()。

A
烟幕可出现在不同高度的几个逆温层下
B
烟幕只出现在地面附近高度较低的逆温层下
C
逆温层越高,烟幕就越厚,可到对流层顶
D
在大气不稳定时,烟幕可抬升而形成霾或浮尘

答案解析

正确答案:B
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单选题

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单选题

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单选题

One key Standard Operating Procedure is the Approach Briefing. All crew members must understand what is planned for on the approach and must be involved during the discussion of the plan. Both horizontal and vertical position awareness elements need to be established. The Flight Safety Foundation recommends that in addition to the standard briefing items such as: ? chart date ? runway in use ? approach type ? glideslope angle and ? crossing altitudesThe following items should be briefed as appropriate: ? automation setup and usage ? navigation equipment setup and monitoring ? rate and angle of descent ? intermediate altitudes and call outs ? altitude alert settings and acknowledgements ? approach gates ? timing ? runway environment ? lighting ? expectations when going visual to include: ? offsets ? radio altimeter usage and awareness; and ? a discussion of possible risk factors including conditions that will dictate a go-around. Ok in the event of a missed approach we'll climb straight ahead to 1,800 feet, climbing right turn to 4,000...A number of specific items must be a part of the approach briefing. As previously reviewed, the crew must discuss, plan and prepare for the possibility of a go-around. The briefing should include a discussion of the use of all available navigation and approach aids appropriate to the approach being flown. A discussion of the use of the radio altimeter should also be a part of the briefing.2.What does conditions that will dictate a go-around mean?

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One key Standard Operating Procedure is the Approach Briefing. All crew members must understand what is planned for on the approach and must be involved during the discussion of the plan. Both horizontal and vertical position awareness elements need to be established. The Flight Safety Foundation recommends that in addition to the standard briefing items such as: ? chart date ? runway in use ? approach type ? glideslope angle and ? crossing altitudesThe following items should be briefed as appropriate: ? automation setup and usage ? navigation equipment setup and monitoring ? rate and angle of descent ? intermediate altitudes and call outs ? altitude alert settings and acknowledgements ? approach gates ? timing ? runway environment ? lighting ? expectations when going visual to include: ? offsets ? radio altimeter usage and awareness; and ? a discussion of possible risk factors including conditions that will dictate a go-around. Ok in the event of a missed approach we'll climb straight ahead to 1,800 feet, climbing right turn to 4,000...A number of specific items must be a part of the approach briefing. As previously reviewed, the crew must discuss, plan and prepare for the possibility of a go-around. The briefing should include a discussion of the use of all available navigation and approach aids appropriate to the approach being flown. A discussion of the use of the radio altimeter should also be a part of the briefing.1. What is the passage mainly about?

单选题

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单选题

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单选题

The following parameters have been recommended by The Flight Safety Foundation to define a stabilized approach. They should be met by 1,000 feet above touchdown in IMC conditions. ? The aircraft is on the correct flight path. ? Only small changes in heading and pitch are required to maintain the flight path. ? The speed of the aircraft is not more that Vref + 20 knots indicated airspeed and not less than Vref. ? The sink rate is no more than 1,000 feet per minute. ? The aircraft is in the proper approach and landing configuration. ? The power setting is no lower than the minimum specified for the type of aircraft. ? All briefings and checklists have been performed. All of these approach parameters must be met by 500 feet, including visual approaches. If your Standard Operating Procedures do not include parameters for a stabilized approach, The Flight Safety Foundation recommends that you use the parameters just listed. In a situation where you are unsure of your position such as an unexpected radio altimeter reading (in other words, a radio altimeter reading that is surprising or that does not agree with the pilots' expectations), a go-around should be called for. Always check altitude against range. ? You should not see radar altitudes less than 1,000 feet while on an instrument approach prior to ('prior to' = before) the initial fix. ? You should never see radar altitudes of less than 500 feet between the initial fix and final approach fix. ? You should never see less than 250 feet past the final approach fix unless you are on an approach with lower minimums or until going visual. Pre-planning and a good approach briefing will allow you to make a timely go-around decision when ? weather is having a significant impact such as the loss of visual reference, or ? there is a significant cross wind, head wind, tail wind or wind shear.3. What is the meaning of power setting?

单选题

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单选题

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单选题

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