Individual wire identification codes are established to assist in tracing circuitry.

A. 操作变暗的电门，确保强度稍微变化。

B. 操作调光电门，确保光线强度发生变化。

C. 运行昏暗的开关，确保光线变化强烈。

A. Keep all the parts that are serviceable and discard those that are broken.

B. Retain the parts that are functional and discard those that are of poor condition.

C. Keep all the parts that are operational and drop those that are contaminated.

A. 为了参考使用，标签分隔符应该按顺序排列。

B. 交错使用制表分隔符将有助于参考。

C. 为了便于参考，隔页签应交错排列。

A. Turn the adjuster clockwise to make the display brighter.

B. Turn the adjuster clockwise to make the display dimmer.

C. Adjust the brightness of the display by turning the adjuster.

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. The specification gives the symbols for relays, diodes, and other parts of the system.

B. The specification gives the requirement for markings on relay, triode and other parts of the system.

C. The specification excludes symbols for relays, diodes, and other system parts.

A. 滑油必须要分析。

B. 对滑油进行分析。

C. 已经分析了滑油。

A. The smoke sensor in each detector monitors when the smoke density is above a previous limit. If the density keeps higher than the limit for about eight seconds, the sensor set the detector to the alarm condition.

B. The smoke sensor in each detector monitors for smoke density above a preset limit. If the density stays above the limit for appropriately eight seconds, the sensor sets the detector to the alarm condition.

C. The smoke transducer monitors for smoke density above a presumed limit of each detector. If the density remains over the limit about eight seconds, the transducer turn the detector to the alarm condition.

A. 拆卸/安装部分应清晰地描述拆卸和重新安装部件或装置所要求的步骤方法，以及应观察的预防措施。

B. 拆卸/安装部分应明确地说明拆卸和重新安装部件或装置所需的步骤要求，不需包含观察到的预防措施。

C. 拆卸/安装部分应清楚地说明拆卸和重新安装部件或装置所需的步骤顺序，以及应遵守的预防措施。

A. 4个轴承支撑N2轴的后部。

B. 第4号轴承支撑N2轴的后部。

C. 第4号轴承支持N2轴的前部。