1424.You must use ear protection when you are near an engine that is in operation.

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. Licensed personnel appropriately finish the requirements of all other maintenance on airplane.

B. All other maintenance required on airplane should be done by the personnel who have the corresponding license.

C. All other maintenance requires that the properly licensed personnel should be on airplane.

A. 如果你决定不更换此组件,记录其温度最多 15 个循环。

B. 监控它的温度最少 15 个循环后,决定是否更换此组件。

C. 如果你的决定是不更换该组件,则监控其温度至少 15 个循环。

A. The accuracy of the adjustment can vary.

B. The accuracy of the adjustment can be fixed.

C. The precision of the adjustment can be prevented .

A. Report any corrosion found to the manufacturer.

B. Report any cracks found to the manufacturer.

C. Report any damage found to the manufacturer.

A. Basic control and operation information describing how the airplane components are controlled and how they operate,including any special procedures,and limitations that apply.

B. Basic control and operation information describing how the airplane components are controlled and operated,including any special procedures,and limitations that apply.

C. Basic control and operation information describing how the airplane components control and operate,including any special procedures and limitations that apply.

A. 确保维修飞机时不要撞到勤务箱。

B. 确保勤务车不要撞到飞机。

C. 确保勤务柜不要放在飞机的旁边。

A. Pilots have more opportunity to move stabilizer to nose up position during takeoff thanks to the mach trim actuator who commands elevator to a more nose down position.

B. During takeoff,pilots have more opportunity to move elevator to nose up positionthanks tothe mach trim actuator who commands stabilizer to a more nose down position.

C. During takeoff,pilots have more opportunity to move elevator to nose down position thanks to the mach trim actuator who commands stabilizer to a more nose up position.

D. uring takeoff,pilots have more opportunity to move elevator to nose down position thanks to the mach trim actuator who commands stabilizer to a more nose up position.

A. 当该面积足够凉爽时,喷涂表面。

B. 当该区域足够凉时,抛光表面。

C. 当该区域足够凉时,喷涂表面。

A. Select the specific system that you will apply pressure to.

B. Select the hydraulic system that you will pressurize.

C. Identify the hydraulic system that you will bleed.