Remove and discard the cotter pins a

单选题以下描述临界迎角的选项是？

A、Operational Test: That procedure required to ascertain only that a system or unit is operable. These tests should require no special equipment or facilities other than that are installed on the aircraft and should be comparable to the tests performed by the flight crew. It is not intended that the operational test of the unit shall meet the specifications and tolerances ordinarily established for overhaul, or major maintenance periods.

B、On pressurized aircraft, the cabin air is distributed with a system of air ducts leaded from the pressurization source into and throughout the cabin. Typically, air is ducted to and released from ceiling ventilation.

C、Critical angle of attack is the angle at which a fluid or air flow begins to separate from a surface, causing a reduction in the efficiency of the flow. The critical attack angle is an important consideration in the design of aerodynamic surfaces, such as airplane wings, turbine blades, as it determines the maximum angle of attack that can be achieved without causing a loss of lift or propulsion.

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单选题请根据上述共用题干进行判断（因题干未明确问题，推测可能为根据材料判断相关情况）

A、未提及相关内容

B、错误

C、正确

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单选题以下描述操作测试的选项是？

A、Operational Test: That procedure required to ascertain only that a system or unit is operable. These tests should require no special equipment or facilities other than that are installed on the aircraft and should be comparable to the tests performed by the flight crew. It is not intended that the operational test of the unit shall meet the specifications and tolerances ordinarily established for overhaul, or major maintenance periods.

B、On pressurized aircraft, the cabin air is distributed with a system of air ducts leaded from the pressurization source into and throughout the cabin. Typically, air is ducted to and released from ceiling ventilation.

C、Critical angle of attack is the angle at which a fluid or air flow begins to separate from a surface, causing a reduction in the efficiency of the flow. The critical attack angle is an important consideration in the design of aerodynamic surfaces, such as airplane wings, turbine blades, as it determines the maximum angle of attack that can be achieved without causing a loss of lift or propulsion.

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单选题请根据上述共用题干进行判断（因题干未明确问题，推测可能为根据材料判断相关情况）

A、未提及相关内容

B、正确

C、错误

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单选题请根据上述共用题干进行判断（因题干未明确问题，推测可能为根据材料判断相关情况）

A、未提及相关内容

B、正确

C、错误

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单选题英文原文“A weight and balance loading form and an explanation of the calculation procedure shall be provided.”的正确翻译是以下哪个选项？

A、应提供重量平衡装载表,同时提供相关计算程序的解释说明

B、应提供重量和平衡载荷表以及说明计算程序.

C、应提供重量和平衡载荷表以及计算步骤说明.

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单选题以下描述座舱空气分配的选项是？

A、Operational Test: That procedure required to ascertain only that a system or unit is operable. These tests should require no special equipment or facilities other than that are installed on the aircraft and should be comparable to the tests performed by the flight crew. It is not intended that the operational test of the unit shall meet the specifications and tolerances ordinarily established for overhaul, or major maintenance periods.

B、On pressurized aircraft, the cabin air is distributed with a system of air ducts leaded from the pressurization source into and throughout the cabin. Typically, air is ducted to and released from ceiling ventilation.

C、Critical angle of attack is the angle at which a fluid or air flow begins to separate from a surface, causing a reduction in the efficiency of the flow. The critical attack angle is an important consideration in the design of aerodynamic surfaces, such as airplane wings, turbine blades, as it determines the maximum angle of attack that can be achieved without causing a loss of lift or propulsion.

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单选题英文原文“In addition to the weight and balance loading form, the manufacturer may provide a device to be used to calculate weight and balance. Instructions for its use shall be provided.”的正确翻译是以下哪个选项？

A、除重量和平衡舱单外,制造商还可提供用于计算重量和平衡的装置,并提供使用说明.

B、除重量平衡装载表外,制造商还可提供重量平衡的计算设备,并提供使用说明.

C、制造商可提供用于计算配重和配平的装置,来补充配重和配平装载表,并提供使用说明.

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