【Daily Topic】【Electrical Edition 20170324】
Thread Content
Participation reward: 2 Wealth. Correct reward: 8 Wealth. Multiple-choice question: To ensure that contactor KM2 operates only after contactor KM1 has operated, what is required? ( ) A. Insert KM2’s normally open contact in series with KM1’s coil circuit. B. Insert KM2’s normally closed contact in series with KM1’s coil circuit. C. Insert KM1’s normally open contact in series with KM2’s coil circuit. D. Insert KM1’s normally closed contact in series with KM2’s coil circuit. C
A. Insert the normally open contact of KM2 in series in the coil circuit of KM1
C. Insert the normally open contact of KM1 in series in the coil circuit of KM2
C. Insert the normally open contact of KM1 in series in the coil circuit of KM2