Final answer:
The appropriate type of portable fire extinguisher for use in case of fire with a fuel-oil storage is a foam extinguisher. Foam extinguishers are designed to fight fires involving flammable liquids, including fuel oils.
Step-by-step explanation:
The appropriate type of portable fire extinguisher for use in case of fire with a fuel-oil storage is a foam extinguisher.
Foam extinguishers are designed to fight fires involving flammable liquids, including fuel oils.
They create a blanket of foam that covers the burning surface and smothers the fire.