A、 A maximum distance of 50 feet is required between consumable materials and the work area.
B、 Keep flammable materials at a minimum distance of 50 feet from the work area.
C、 Explosive materials must be kept at least 50 feet away from the work area.
答案：B
A、 A maximum distance of 50 feet is required between consumable materials and the work area.
B、 Keep flammable materials at a minimum distance of 50 feet from the work area.
C、 Explosive materials must be kept at least 50 feet away from the work area.
答案：B
A. 实施训练,直到熟练操作舵面。
B. 对准钻头,直到它与表面垂直。
C. 安装钻头,直到它与表面平齐。
A. Let the plate dry at applicable temperature.
B. Let the plant dry at available temperature.
C. Let the paint dry at ambient temperature.
A. You can not remove the battery.Only an approved service provider can replace it.
B. Do not replace the battery.Only an approved service provider can replace it.
C. Do not replace the battery.Only an approval of a service provider can replace it.
A. It is permitted to show the legends within the diagram instead of listing at the bottom or on an adjacent page by the abbreviation number.
B. Legends shall be explained in a simple way within the diagram at the bottom or on an adjacentpage except for abbreviation with numbers in a list.
C. If the space is enough,the legends shall be stated within the diagram and do not list them by numerical abbreviations at the bottom or on an adjacent page.
D. C.If the space is enough,the legends shall be stated within the diagram and do not list them by numerical abbreviations at the bottom or on an adjacent page.
A. The airworthiness section may recommend each expected replacement time.
B. The replacement time must be set forth in part of airworthiness section.
C. Airworthiness section must set forth each mandatory replacement time.
A. Crucial angle of attack is the angle at which a stream or air flow begins to split from a surface,causing a decrease in efficiency.It is important for designing dynamic surfaces ,such as airplane wings,turbine blades,as it determines the maximum attack angle that can be achieved without causing loss of lift or thrust.
B. Crutial angle of attack is the angle at which a stream or air flow begins to seperate from a surface,causing a decrease in efficiency.It is important for designing aerodynamic surfaces ,such as airplane airfoils,turbine blades,as it determines the maximum attack angle that can be achieved without causing loss of lift or thrust.
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.
A. If the unit is not modified,its service life will be possibly shorter.
B. Without the modification of the unit,its service life is likely shorter than present.
C. Without the modification,it is possible that the service life of this unit will be shorter than usual.
A. 本规范涉及 FAA 的各种调节。
B. 本规范参考了各种 FAA 条例。
C. 本规范称作 FAA 的各种规章。
A. 检查单还可能包含与飞机操作相关的补充信息,如性能数据、可选设备操作等,飞行员可能会经常使用。
B. 检查单还可包含飞行员可能会经常使用的与飞机运行相关的补充信息,如性能数据、选装设备的操作等。
C. 检查单还可能包含与飞机操作相关的补充信息,如绩效数据、备用设备操作等,飞行员可能会经常使用。
A. 字母数字索引的主题应包含在简介中,作为定位所需电路的辅助手段。
B. 简介中应包含按主题排列的字母索引,以帮助定位所需的电路。
C. 简介中应包含数字索引的主题,以帮助确定所需的电路。
