There is a water spray or deluge system on LNG vessels that provide a water spray over all areas around the cargo system. What can this system be used for?

Correct Answer: Option C — both "A" and "B"

Liquefied Natural Gas (LNG) water spray systems serve dual protective functions. They shield surrounding superstructure and equipment from intense radiant fire heat while preventing catastrophic brittle fracture of non-cryogenic mild steel hull plating caused by extreme cryogenic liquid spills.