Answer the following statement(s) true (T) or false (F)
1. DC series motors that can run at no load may generate runaway speeds and literally throw themselves apart.
2. A drum controller was used on crane motors, elevators, machine tools, and other applications in heavy industry.
3. The reverse direction of a drum controller is accomplished by reversing the current in both the armature circuit and the shunt and series fields.
4. Three-terminal and four-terminal starting rheostats are still widely used.
5. Drum controllers are still frequently used with AC as well as DC motors.
1. TRUE
2. TRUE
3. FALSE
4. FALSE
5. TRUE
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