Engine : Electricity - 686/1386
|
|---|
| « Previous Question |
| In addition to improper brush pressure or seating, what can result in excessive sparking at the brushes of a DC propulsion motor? |
| A) operating at continuously varying loads such as during maneuvering |
| B) reversed armature polarity with respect to the field |
| C) reversed main field polarity with respect to the armature |
| D) improper positioning of brush rigging outside the neutral plane |
loading answer...
| Comments |
|---|
| There are no comments for this question. |