单项选择题
A constant output voltage from an AC generator is maintained by the （）.
A.prime mover governor B.exciter generator C.voltage regulator D.reverse power relay
单项选择题 What type of rotor is used in split-phase motors?（）
单项选择题 The load sharing characteristics of two diesel generator operating in parallel are mostly dependent on their governor （）.
单项选择题 The first requirement for logical troubleshooting of any system is the ability to （）.
