449.No abbreviations may be used unless they are universally meaningful.

A. Correct punctuation is important because it shows that the different parts of the text are reconnected and prevents miscomprehension.

B. Correct punctuation is important because it shows how the different parts of the text are independent and prevents accumulation.

C. Correct punctuation is important because it shows how the different parts of the text are related and prevents ambiguity.

A. The description could be pronounced in the active voice.

B. Descriptive content can be written in active voice.

C. You should read it in voice as you write the descriptive text.

A. The operational test of HFS-900D transceivers is an internal functions check of the HF transceiver and it is a BITE test.

B. The BITE test for the HFS-900D transceivers is the operation test that does the inner check of the HF transceiver.

C. The check of the internal functions of the HF transceiver is a BITE test related to HFS-900D transceivers.

A. 裂缝的最大长度为 5 英尺。

B. 裂缝的最大长度为 5 英寸。

C. 裂缝的最大深度为 5 英寸。

A. 应说明总容量和可用燃料,如果不可用燃料超过 FAR23 的限制,在飞行中不可用数量的信息应被提供。

B. 如果不可用燃油超过 FAR23 的限制,则应说明总容量和可用燃油并确定提供在飞行中不可用燃油量的信息。

C. 应说明总容量和可用燃油,如果不可用燃油超过 FAR23 的限制,应提供确定在飞行中不可用燃油量的信息。

A. Make sure that you can see the oil level through the sight gauge.

B. Make sure that the oil quantity is shown on the oil level indicator.

C. You can read the oil level on the oil level gauge.

A. Oil comes from the supply system to lubricate and cool internal components in the engine.

B. Oil coming from the scavenge system will supply lubrication and cooling for the internal components of the engine.

C. The oil supply system will give lubrication and cooling for the internal components of the engine.

A. 将容器置于排放活门下方。

B. 将排放活门置于油箱下方。

C. 将容器从排放活门下方移开。

A. 确保那些指示的位置是襟翼的位置。

B. 确保指示与襟翼的位置一致。

C. 确保那些迹象同意襟翼的位置

A. Examine the area that is around the drain holes for signs of corrosion.

B. Check the scavenge hole and areas around it for corrosion.

C. Make sure that there's no corrosion around the drain hole.