220. 所需转速驱动发电机的机械装置。

A. Ground service bus has no power, but the external power can be supplied.

B. Ground service bus is not energized with external power.

C. Ground service bus is power off when external power is supplied.

A. The values must not be more than the approved differences.

B. The values must not exceed the allowable differences.

C. The values must not exceed the approved error.

A. 覆盖物正覆盖在动力装置上和周围。

B. 覆盖在动力装置上和周围的可拆卸覆盖物。

C. 覆盖物正覆盖在动力装置上。

A. Measure the movement of the inboard and outboard flaps.

B. Measure the move for the inboard and outboard flaps.

C. Examine movement of the inboard and outboard flaps.

A. Estimate the quality of fuel used for the flight.

B. Compute the quantity of fuel required for the flight.

C. Evaluate the quantity of fuel in the flight.

A. 调整加速度计的精度。

B. 准确调整陀螺仪。

C. 调整罗盘的精度。

A. 拉力连杆组件将拉力载荷从轮轴传递到减震支柱。

B. 张力连杆组件将张力负载从轴心传递到减震支柱。

C. 扭力连杆组件能将扭力载荷从轴传递到减震支柱。

A. Turn the handle of the door until the lower gate is lifted.

B. For lowering the upper door,door handle should be turned.

C. The lever of door should be turned until the lower door opens.

A. Chromate is added into the primer to protect corrosion.

B. A material that protects the primer from corrosion in contained in it.

C. There is corrosion-preventive material in the primer.

A. Blind rivet is a special rivet used in a sheet metal structure that can be installed when either side of the metal can get access to.

B. Blind rivet is a special rivet used in a sheet metal structure that can be installed when neither side of the metal can get access to.

C. Blind rivet is used in a sheet metal structure because there is not enough space to both sides of the metal.