1228.Temporarily attach the cable to the adjacent structure.

A. If as many as 50% of the holes are contaminated,you should clean the display units behinds the holes.

B. The holes on the bottom of the display unit should be cleaned once over 50% of them are clogged due to contamination.

C. If contamination causes a blockage of more than 50 percent of the holes,then clean the holes on the rear of the display units.

A. 左大翼二号油箱盖板断裂。

B. 左大翼二号油箱接近门变形。

C. 左大翼二号油箱入口门脱落。

A. Use the upper latch mechanism to lock the lower display unit in the middle.

B. The latch mechanism at the top is used to secure the center display unit on the bottom.

C. The center lower display unitis installed with the latch mechanism at the top.

A. The testing machine will run the tests in manual mode.

B. The test set will automatically run the tests.

C. The test apparatus will give the test parameter automatically.

A. Setting cable tension,flight control surfaces travel limitsand stops are the main tasks of rigging.

B. Cable tension set,flight controls travel limits adjustment and travel stops set are the rigging procedures.

C. Rigging involves setting cable tension,adjusting travel limits of flight controls,and setting travel stops.

A. Documents must be temporarily edible.

B. Documents must be readily revisable.

C. Documents must be permanently durable.

A. Use the upper latch mechanism to lock the lower display unit in the middle.

B. The latch mechanism at the top is used to secure the center display unit on the bottom.

C. The center lower display unitis installed with the latch mechanism at the top.

A. The exit doors are mainly used for passenger boarding.

B. The exit doors are only used for evacuation.

C. The exit doors are not only used for the passengers to evacuate from the airplane but also used for normal exit.

A. 直接从高压气瓶中放气是不可取的。

B. 不要直接用高压气瓶从系统中抽气。

C. 不要直接用高压气瓶给系统充气。

A. 不要组装或修理点火嘴。

B. 不要拆解或修理点火嘴。

C. 不要组装或更换点火嘴。