2412.Put the mask on and breathe through it to make sure that the oxygen supply is correct.

A. The airworthiness problem needs to be resolved by the way any other airplane does in the operator's fleet has equal or more damaging corrosion,and it has to be done before the regular check of that zone.

B. The airworthiness problem needs immediate action ahead of the next planning inspection of that zone,because it would probably occur on another plane in the operator's fleet,causing equivalent or more serious corrosion.

C. Due to any other airplane in the operator's fleet could have the comparable or more vital corrosion,the airworthiness problem should be investigated immediately before the next periodic inspection of that zone.

A. There will be no fire.

B. Fire will occur sometimes.

C. There is danger of fire.

A. Choose the hydraulic system you will apply pressure.

B. Pressurize the selected hydraulic system.

C. Choose the hydraulic system you will depressurize.

A. The operation of new generation aircraft has adopted the operation method of damage tolerance.

B. The damage tolerance design method is applicable to the new type aircraft.

C. The design concept of damage tolerance was successfully applied to the design of new generation aircraft.

A. Overhaul of any components covered in this chapter shall be completed in accordance with data other than those provided by the manufacturer.

B. None of the components covered by this chapter shall be overhauled except in accordance with the manufacturer's data.

C. All components covered in this chapter must be overhauled according to the technical dataprovided by the manufacturer.

D. C.All components covered in this chapter must be overhauled according to the technical dataprovided by the manufacturer.

A. The flap angles can not be found in Table 1.

B. The flap angles are stated in Table 1.

C. In Table 1,there are no flap angles.

A. Do not alleviate pressure to the aft flange.

B. Do not apply pressure to the aft flange.

C. Do not apply pressure to the aft screw bolt.

A. 从安装位置向上提起气瓶。

B. 向上提起做动筒到安装位置。

C. 提起并安装气缸到位。

A. Write notes only to give content,not commands.

B. Write notes only to give information,not instructions.

C. Write cautions only to give information,not orders.

A. OEUs 将主汇流条上的 5V 交流电转换成 115V 交流电以供给排呼叫灯和 12V 交流电的阅读灯。

B. OEUs 将来自主汇流条的 115V 交流电转换成用于排呼叫灯的 5V 交流电和用于阅读灯的 12V 交流电。

C. OEUs 将来自主汇流条的 115V 交流电转换成 5V 和 12V 的直流电,用于排呼叫灯和阅读灯。

D. B.OEUs 将来自主汇流条的 115V 交流电转换成用于排呼叫灯的 5V 交流电和用于阅读灯的 12V 交流电。

E. Us 将来自主汇流条的 115V 交流电转换成 5V 和 12V 的直流电,用于排呼叫灯和阅读灯。