| When an aluminum plate is bolted to a steel plate, what is required at the bolted joint to minimize bimetallic corrosion? |
| A) The plates should be electrically insulated from one another by use of non-conductive gaskets and non-conductive ferrule sleeves with the bolts. |
| B) The plates should be bonded together electrically by joining the plates by a bonding strap in addition to bolting together. |
| C) Steel and aluminum are so close together on the Noble series that no particular provision need be made for bolting steel and aluminum plates together. |
| D) The plates should be bolted together in such a way as to ensure good electrical contact between the plates. |
