智慧职教: 关于充电电流不稳故障的症状，甲说充电电流不稳的症状是发动机在中速以上运转，电流表指示充电电流忽大忽小；乙说充电电流不稳的症状是发动机在中速以上运转，充电指示灯忽明忽暗。你认为以上观点（）。
As for the symptoms of unstable charging current fault, a said that the symptoms of unstable charging current are that the engine runs above the medium speed, and the ammeter indicates that the charging current fluctuates between large and small；B said that the symptoms of unstable charging current is that the engine is running above the medium speed, and the charging indicator lights flicker on and off.Do you think the above views ().
As for the symptoms of unstable charging current fault, a said that the symptoms of unstable charging current are that the engine runs above the medium speed, and the ammeter indicates that the charging current fluctuates between large and small；B said that the symptoms of unstable charging current is that the engine is running above the medium speed, and the charging indicator lights flicker on and off.Do you think the above views ().
举一反三
- 在RC充电电路中，当充电时间 t=RC时，充电电流为 A: 最大电流的0.707倍 B: 最大电流的0.37倍 C: 最大电流 D: 以上全错
- 补充充电可以定电流充电，也可以采用定压充电。若采用定电流充电时，第一阶段充电电流为额定容量的（），充电至单格电池电压达到2.4V时电流（），直至充足。
- 因为铅蓄电池定压充电（），所以不适合初充电。 A: 不能调节充电时间 B: 不能调节充电电流 C: 不能采用大电流充电
- 当发动机（）运转时，电流表指示放电（—5~—3A）或电压表无充电电压指示，此种现象称为硅整流发电机不充电故障。 A: 匀速 B: 中速以上 C: 中速以下 D: 低速
- Electric vehicle charging modes includes:(<br/>)。 A: 交流充电 B: 直流充电 C: 电池更换 D: 快速充电