1311. Add the necessary quantity of oil

A. Propellers must be overhauled in a satisfactory shop which should be supplied by the propeller manufacturer in accordance with data.

B. Overhaul of propellers and the shop must meet the data of the propeller manufacturer.

C. Overhaul of propellers must be accomplished in a qualified shop in accordance with data supplied by the propeller manufacturer.

A. The slow moving and high pressure air from the compressor is fed with the combustor or burner in which it is mixed with a highly flammable fuel and ignited.

B. The slow moving and high pressure air from the compressor goes into the combustor or burner in which it is mixed with a highly flammable fuel and ignited.

C. The slow moving and high pressure air from the compressor is fed into the combustor or burner where it is mixed with a highly volatile fuel and ignited.

A. Used to transmit power to the propeller shaft and accessory drives. Includes reduction gearing, gear trains, extension shaft and torque-meter.

B. Used to transmit power to the propeller shaft, if any, and accessory drives. Includes reduction gearing, gear trains, extension shaft and torque-meter.

C. Used to transmit power to the propeller shaft, if any, and interrelated drives. Includes reduction gearing, gear trains, extension shaft and torque-meter.

A. The pack OFF light may go off as soon as the engine starts.

B. The pack should begin to operate two minutes after one engine starts.

C. The pack starts to operate as the engine starts, but the pack OFF light stays on until two minutes after the start.

A. 防腐可能有很多原因

B. 腐蚀可能有很多原因

C. 腐蚀可能有很多防腐措施

A. Nornencluture shall be similar throughout all technical data obtained by the Customer.

B. Nornencluture shall be consistent throughout alI technical data given to the Customer.

C. Nornencluture must be similar throughout all technical data provided to the Customer.

A. 包括风挡玻璃在内的机身和驾驶舱窗户;还有安装在门上的窗户。

B. 驾驶舱风挡玻璃和机舱玻璃;还有安装在门上的窗户。

C. 飞机的窗户包括驾驶舱和客舱玻璃;还包括门上玻璃。

A. 检查部件的接合处及邻近区域。

B. 检查部件的表面以及相关区域。

C. 检查部件的内部以及相邻区域。

A. The positive pressure relief valves are fail safe devices. If the aft outflow valve can＇t be closed, these positive pressure relief valves bleed fuselage pressure overboard.

B. The positive pressure relief valves are fail safe devices. If the positive pressure relief valves fails closed, these aft outflow valve bleed fuselage pressure overboard.

C. The positive pressure relief valves are fail safe devices. If the aft outflow valve fails closed, these positive pressure relief valves bleed fuselage pressure overboard.

A. Short circuit is found during check.

B. After checked and found D4398P is in good condition.

C. After checked and found D4398P is broken.