When water washing epoxy-coated cargo tanks, the temperature and pressure of the wash water should generally not exceed __________.

Correct Answer: Option D — 120°F - 120 psi

Epoxy-coated tanks are sensitive to thermal and mechanical stress. Exceeding 120°F or 120 psi can cause the coating to blister, delaminate, or crack. Maintaining these conservative limits preserves the integrity of the protective barrier, preventing corrosion of the underlying steel and ensuring the longevity of the cargo tank structure.