The Abnormal Procedures Section shall include, at the beginning, a check list with regard to order of action when sequence is essential to safety.

A. 当前的服务通告清单是人工编制的。

B. 目前的服务通告清单在手册级别编制。

C. 正式的勤务通告单由人工搜集。

A. The lower seal is invisible prior to switching the lower bearing on.

B. The lower seal becomes visible when you push the lower bearing up.

C. The lower seal comes into view when you pull the lower bearing down.

A. 更换油温恒温器控制装置。

B. 更换油温温控器控制。

C. 更换滑油恒温控制器。

A. The temperature value must be more than 800 kPa.

B. The compression value must be more than 800 kPa.

C. The pressure value must be more than 800 kPa.

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. 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. Passenger reading lights at cabin rows 12B, 14C, and 17A does not come on.

B. Passenger reading lights at cabin rows 12B, 14C, and 17A do not illuminate.

C. Passenger reading lights at cabin rows 12B, 14C, and 17A is not on.

A. The power source that are discussed respectively under the appropriate chapter heading shall provide power to at least two systems.

B. When two or more systems are served by a single power source, that power source will be discussed separately under the appropriate chapter heading.

C. The system that is powered by two or more power sources shall be discussed separately under the appropriate chapter heading.

A. Clamps should be spaced at intervals not exceeding 24 inches. Clamps on wire bundles should be selected so that they have a snug fit without pinching wires.

B. Pins should be spaced at intervals not exceeding 24 inches. Pins on harness should be selected so that they have a snug fit without pinching wires.

C. Pins should be spaced at intervals not exceeding 24 inches. Pins on harness should be selected so that they have a snug fit without scratching wires.

A. The Unusual Procedures Check List should be in concrete, abbreviated form.

B. The Emergency Procedures Check List should be in constant, abbreviated form.

C. The Abnormal Procedures Check List should be in concise, abbreviated form.