| Besides isolating and tagging out the motor, and opening both ends, which of the listed precautions should be taken when cleaning the internals of a motor with compressed air? |
| A) Use the highest pressure air available, beyond that of the service air system. |
| B) Be certain that the air is clean, but moisture content is permissible to take advantage of the cleaning ability of water. |
| C) Be certain that the air is clean, but oil content is permissible to take advantage of the insulating quality of oil. |
| D) Be certain that the air is clean and free of moisture and oil. |
