| A vessel is constructed with a steel hull and an aluminum superstructure. Which statement is TRUE? |
| A) If the superstructure is stressed, an aluminum structure requires additional expansion joints to prevent fracture. |
| B) The aluminum structure is usually attached to a steel coaming by a method that insulates the two metals. |
| C) The aluminum will provide greater resistance to the spread of fire by conduction. |
| D) The steel at the area of the aluminum-to-steel connection must be closely checked for galvanic corrosion. |
