A、 APU start attempts are inhibited above 25,000 feet with both busses off,only one start attempt is allowed below 25000 feet.
B、 With both busses power off,APU start attempts is recommended above 25000 feet and only one start could be accepted below 25,000 feet.
C、 APU start attempts are not recommended above 25,000 feet.With both busses off,only one start attempt is recommended below 25,000 feet.
答案：C
A、 APU start attempts are inhibited above 25,000 feet with both busses off,only one start attempt is allowed below 25000 feet.
B、 With both busses power off,APU start attempts is recommended above 25000 feet and only one start could be accepted below 25,000 feet.
C、 APU start attempts are not recommended above 25,000 feet.With both busses off,only one start attempt is recommended below 25,000 feet.
答案：C
A. Pressurization of the pneumatic crossover manifold and use of an external air source connected to the air charging valve manifold to pressurize the reservoirs for ground maintenance is the second method.
B. You can use the second method to pressurize crossover manifold and use an external air source connected to the air charging valve manifold to pressurize the reservoirs for ground maintenance.
C. The second method is that it is not necessary to pressurize the pneumatic crossover manifold but to use an external air source connected to the air charging valve manifold to pressurize the reservoirs for ground maintenance.
A. Water above the kitchen floor can seep in through small holes in the floor surface,invisible to the naked eye.
B. Eyes cannot see the vapor which may penetrate through small holes of the floor surface in the galley.
C. Moisture above the galley floor can go through small holes in the floor surface area and stay out of view.
A. 分配系统是指系统中用于将高压或低压空气分配到用户系统的那部分。
B. 分布系统是指系统中用于向正在运行中的系统分配高压或低压空气的那部分。
C. 配电系统是指系统中用于将高压或低压空气分配到有需求系统的那部分。
A. 应当提供在客舱内或发动机冒烟或起火的情况的处理程序。
B. 应对机舱内或发动机的烟雾报警有特定的处理说明。
C. 手册中专门描述了如何应对飞机起火或冒烟的紧急情况的处理措施。
A. 本部分用于相同的安排方法和识别特定主题材料。
B. 本部分规定了安排和识别某些主题材料的同类方法。
C. 本部分提供了安排和识别特定主题素材的统一方法。
A. ASD 感谢所有对本规范做出整理的组织、公司和个人。
B. ASD 感谢所有对本规范做出贡献的组织、公司和个人。
C. ASD 感谢所有对本特例做出解释的组织、公司和个人。
A. By way of the control unit,enter the opening in the side of the tank.
B. Get access to the control unit through the opening in the side of the tank.
C. Get access to the control unit by opening one side of the tank.
A. 对于利用空气作为防冰介质的涡轮类动力装置,发动机防冰功能包含在空气系统中。
B. 因为涡轮类型动力组合使用气体作为防止积冰的渠道,发动机防积冰设备被储存在空气系统下。
C. 因为涡轮动力装置将空气用来防止积冰,发动机防冰包含在通风系统中。
A. Make sure that all the emergency exits are clear of unwanted objects.
B. Make sure that all the exits are clear of foreign objects.
C. Make sure that all the emergency entrance are freee of unwanted objects.
A. 如果滑油渗漏超过 5 滴,每分钟检测密封胶。
B. 如果滑油渗漏超过每分钟 5 滴,检查密封胶。
C. 如果燃油渗漏超过每分钟 5 滴,更换密封胶。
