A、 Parallel wound motor is DC electric motor whose field coils are connected in serial with the armature.
B、 A parallel wound motor operates at a relatively constant speed.
C、 Due to its character of low starting torque, Parallel wound motor is always used as starter.
答案：B
A、 Parallel wound motor is DC electric motor whose field coils are connected in serial with the armature.
B、 A parallel wound motor operates at a relatively constant speed.
C、 Due to its character of low starting torque, Parallel wound motor is always used as starter.
答案：B
A. 按照适航检查5340-04的要求,不能拆下定位销;
B. 除非符合程序适航检查5340-04的要求,否则不要拆下定位销;
C. 持续适航检查的要求不包括拆下定位销;
A. 在最后运转发动机20分钟。
B. 在地面运转发动机20分钟。
C. 发动机慢车运转20分钟。
A. 定位器与跑道中心线对齐,下滑道与跑到出口成一定角度。
B. 航道与跑道中心线对齐,下滑道与跑到入口成恒定角度。
C. 航道与跑道中心线对齐,下滑道与跑到出口成恒定角度。
A. 在密封的零件表面涂抹磷酸酯基液压油。
B. 在接触封严的零件表面涂抹矿物液压油。
C. 在零件与封严相连接的地方涂抹液压油
A. Clean the ground fuel before starting the engine.
B. Remove fuel from ground before attempting another start.
C. Remove the fuel from t he ground before you try to start the engine again.
A. drink contaminated water.... must happen.
B. drink water free xxx, illness can occur.
C. Drink water with Xxx, you will be sick.
A. 通过侧面油箱的门获取控制组件。
B. 通过侧面油箱的孔触摸控制组件。
C. 通过油箱侧面的开口接近控制组件。
A. The pilot should keep up in flight, whatever happening.
B. The pilot should keep on in flight, whatever happen.
C. The pilots should perform calmly in flight, no matter what happens.
A. 当靶标移动到或离开临近传感器激活区域则将改变临近传感器电子性能。
B. 当目标进入或离开临近传感器作动区域则将改变临近传感器电子信号。
C. 当目标移动到或离开临近传感器工作区域则将改变临近传感器电子信息。
A. 液压油箱的更换将会需要分解。
B. 液压油箱的更换步骤将需要分解进行。
C. 更换液压油箱时的拆卸步骤可能会分解。
