501 MCQ Questions on DC Machine
1. A DC cumulatively compounded motor delivers rated load torque at rated speed. If the series field is short-circuited, then the armature current and speed will (a) both decrease. (b) both increase. (c) increase and decrease respectively. (d) decrease and increase respectively. 2. A dc cumulatively compounded generator was operating satisfactorily and supplying power to […]