576.Pages of permanently bound handbooks need not be dated.

A. Ensure you switch off the brown VALVE CLOSED light next to each switch.

B. Make sure the amber VALVE CLOSED light below each switch goes off.

C. The purple VALVE CLOSED light under each switch is confirmed off.

A. Detection and coding systems shall be used so that it's easy to isolate faults,repair routes and replace the components.

B. You should use the detecting and coding system that can help to remove faults,repair lines and change the components.

C. To facilitate troubleshooting,repair of circuits,and replacement of components,an identification and coding system should be used.

A. Wait for the paint to dry completely before polishing it again.

B. Do not apply the second layer of paint if the first layer has dried thoroughly.

C. Let the first layer of paint dry fully before you apply the second layer.

A. Troubleshoot the VHF Communication system per FIM.

B. Do the troubleshooting procedure on the VHF navigation system.

C. Do the fault isolation procedure for the ADIRU system.

A. 为防止外来物摩擦,对表面抛光。

B. 为防止不必要的磨损,对表面进行打磨修理。

C. 对表面进行抛光以防止不必要的磨损。

A. 确保表面没有铁锈。

B. 确保表面没有灰尘。

C. 确保表面没有油渍。

A. Sentence forms shall be simple and direct ,omitting discussions of theory except where essential for practical understanding and application.

B. The sentence form should be easy and direct,avoiding discussion of theory except when practical understanding and application are necessary.

C. The form of a sentence should be simple and direct,and the discussion of theory should be omitted in addition to practical understanding and application.

A. 支撑柱将地板结构固定在适当位置。

B. 支撑柱将地板结构固定在地面上。

C. 支撑柱适用于稳定的地板结构。

A. 航行灯从熄灭变为明亮。

B. 转弯灯从熄灭变为暗亮。

C. 航行灯从暗亮变为明亮。

A. Long sentences are easy to read.

B. Long sentences are difficult to read.

C. Short sentences are difficult to understand.