You are on a cargo vessel carrying portable tanks of dangerous cargoes in bulk. Which statement is TRUE?

Correct Answer: Option A — All electrical equipment within 10 feet horizontally must be explosion proof or intrinsically safe.

Title 46 CFR mandates that all electrical equipment located within 10 feet horizontally of portable tanks containing dangerous bulk liquids must be explosion-proof or intrinsically safe to mitigate ignition hazards from flammable vapors.