| In monitoring an impressed current cathodic hull protection system, it is important to insure that the propeller screw receive the same cathodic protection as the hull. What should be checked for? |
| A) No checks are necessary since the propeller screw is bronze and needs no protection. |
| B) Nothing can be done short of checking the propeller screw at dry-dock availabilities. |
| C) Insure adequate grounding carbon brush pressure on the rotating shaft and check brushes for wear. |
| D) Insure adequate individual anode current to the anode closest to the propulsion shafting as it passes through the hull. |
