Question 177Motor Plants - Assistant Engineer

The correct answer is B) will carry a 100% overload for a brief period. Electric starting motors for diesel engines require high current for operation, and they are designed to carry a 100% overload for a brief period to provide the necessary power to start the engine. This temporary overload capacity is a critical feature, as the starting process can draw a significant amount of current that would otherwise exceed the motor's continuous rating. The other options are incorrect because: A) a generator is not always required as the power source, as the battery can provide the necessary current; C) a current/voltage regulator is not necessary for the starting motor's operation; and D) the motor is designed to operate briefly under high current demand without overheating.