2069. Dutch roll is an undesirabl, low-amplitude oscillation about both the yaw and roll axes that affects many swept wing airplanes,which is minimized by the use of a yaw damper

A. 技术动词在特定的技术与操作语境中给出指示和信息。

B. 技术动词用于描述指示和信息,以适用于特定的技术与操作环境。

C. 技术动词是指示性的词汇,提供有关特定技术与操作的信息。

A. 错误的连接会造成损伤

B. 松散的接头会造成损伤

C. 损伤的原因是松散的连接

A. Boost pump is generally used in lubrication system.

B. Boost pump is usually driven by electrical power.

C. Boost pump is mounted on the engine’s accessory gearbox and driven by the gearbox.

A. Obey the safety precautions when you do work with high voltages.

B. Obey the safety warnings when you do work with high impedance.

C. Obey the safety cautions when you do work with high capacitance.

A. 有24片宽弦钛合金风扇叶片。

B. 有24片宽弦合金钢风扇叶片。

C. 有弦宽为24的钛合金风扇叶片。

A. 如果是活页表,使用“标准”或通用的页面布局。

B. 如果发现松动的页面,使用“标准”或通用的装订页。

C. 如果是活页形式,使用“标准”或常用的页面大小。

A. Propeller governor is a device that adjusts the speed of the engine or propeller by increasing or decreasing the clearance of the propeller through the clearance changing mechanism on the propeller hub.

B. Propeller governor is the device that regulates the rpm of the engine or propeller by increasing or decreasing the propeller pitch, through a pitch change mechanism in the propeller hub.

C. Propeller governor is through the propeller hub of the propeller pitch changing machine, adjusts the speed of the propeller or engine by increasing or decreasing the propeller gap.

A. Replace components that worn more than the maximum limits.

B. Replace components that worn more than the less than limits.

C. Replace components that worn more than the minimum limits.

A. The actuator travel is limited by the stroke of surface

B. The actuator move is limited by the move of surface

C. The actuator travel is limited by the move of surface

A. Make sure that you do not get the cable.

B. Make sure that theres no trapped cable.

C. Make sure that the wire bundle is not twisted.