首页 试题详情
单选题

Motor controllers are seldom很少 troubled with grounds because _______

Athere are separate switches for the motor and the control

Bthe contactors and relays are mounted on a non-conducting panel

Cthe resistor banks are composed of individual series-connected units

Dthe auxiliary contacts have a high resistance connection

正确答案:A (备注:此答案有误)

相似试题

  • 单选题

    Motor controllers are seldom很少 troubled with grounds because _______

    答案解析

  • 单选题

    Motor the engine without ignition.

    答案解析

热门题库