There are two recirculation air filters installed behind the end wall lining at the aft end of the forward cargo compartment. The air filters are in filter housings on the left and the right side of the mix manifold bay.

A. Only approved personnel can do the installation procedure.

B. Only releasing personnel can do the installation procedure.

C. Only authorized personnel can do the replacement procedure.

A. The condition of the radome is very important for its performance.

B. The condition of the antenna influences its properties greatly.

C. The condition of the radar has an important effect on its characteristics.

A. If the pressure decreases quickly, the shear pins in the latch will break.

B. If the pressure reduces gradually, the shear pins in the lock will break.

C. If the pressure drops radically, the alignment pin in the lock will damages.

A. 做脆弱测试。

B. 做疲劳试验。

C. 做渗漏测试。

A. 对于全发工作起飞距离， 应显示不同周围温度、高度、重量和风与起飞距离的对应关系。应包括地面滚转和达到50英尺障碍物高度的总距离。

B. 对于全发工作起飞距离， 应显示不同周围温度、高度、重量和风的条件下所需的起飞距离。应包括地面滑跑距离和达到离地面50英尺时的水平距离。

C. 对于全发工作起飞距离，应显示不同周围温度、高度、重量和风的条件下所需的距离。提供的数据应包括从滑跑始点到飞机达到高于起飞表面50英尺所经过的水平距离。

A. The associated warning light should illuminate after 30 seconds.

B. The associated caution light should deactivate after a duration of 30 seconds.

C. The caution light, regardless of its position, should turn off within 30 seconds.

A. This system does not supersede the normal channels of communication for items not covered by the CAP.

B. This system will not change the normal ways of communication for items not listed by the CAP.

C. The normal methods of communication for items contained in the CAP will not be shifted.

A. 调节的精度可以改变。

B. 调整后的精度可能会改变。

C. 调节的程序可以改变。

A. If you use solvent in a closed space, make sure that there is good airflow in the work area.

B. When using composite in confined space, make sure it has good ventilation.

C. You can not use sealant in enclosed space on condition that there is no good ventilation.

A. 相关警戒灯必须在30秒后熄灭。

B. 故障的警告灯必须在30秒后关闭。

C. 相关警告灯会在30秒后熄灭。