| Moisture accumulating in electric motors and generator windings having a cold insulation resistance greater than 50,000 ohms may be baked out with internal heat. What is the usual method for developing this heat to evaporate the moisture? |
| A) feeding current into the windings at low voltage |
| B) short circuiting the armature and field windings |
| C) short circuiting the field windings and passing current through the armature |
| D) obtaining current from a DC source such as an electric welder and feeding it into the armature while running the motor at full speed |