2515. Make sure that equipment in the area is cleared

A. After passing through the air-oil cooler, the temperature of the engine oil decreases.

B. The air-oil cooler uses engine oil to remove heat from ambient air.

C. After passing through the air-oil cooler, the temperature of the engine oil increases.

A. Add oil to correct level

B. Add proper oil

C. Add oil to proper level

A. Soap solution is a good, free of contamination lubricant for most seals;

B. Liquid soap is a good, contaminative lubricant for most seals;

C. Liquid soap is a good, pungent lubricant for most seals;

A. 仅B747刚引进时期,每个月就有4000页必须从手册中删减或增加进手册。

B. 在B747引进时期,仅每个月必须替换或增补的手册就有4000页以上。

C. 在B747刚引进的阶段,仅一个月就需要更换或增加约4000页到手册中。

A. Assemble the movable car before you lift the gearbox.

B. Assemble the movable hoist before you lift the gearbox.

C. Assemble the movable handle before you lift the gearbox

A. Your skin and lungs can be protected.

B. Your skin and lungs can be harmed.

C. Your skin and lungs can be harmed suddenly.

A. 将旋转开关设置为输入

B. 将旋转开关设置为输出

C. 将活动开关设置为输入

A. Do this procedure again.

B. Repeat this procedure.

C. Do this procedure two times.

A. Aircraft alternation defines as the modification of structure or components of the aircraft.

B. Aircraft hangar maintenance contributes to the aircraft alternation.

C. Aircraft alternation includes major or minor alternation, which is the modification of an aircraft’s structure or component without changing to the flight characteristics.

A. List the tools, equipment and materials used for work not normally included in mechanical tools.

B. List the tools, equipment and materials required in the job which are normally included in the mechanic＇s tools.

C. List the tools, equipment and materials required in the job which are not normally included in the mechanic＇s tools.