Which type of fire extinguisher is used for petroleum fire?

The correct answer is Option D: Foam type.

For petroleum fires, a foam type fire extinguisher is typically used. Foam extinguishers create a blanket of foam that covers the fuel and prevents the contact of oxygen with the fire, thereby extinguishing the flames. This is effective for liquid fuel fires, including those involving petroleum products.

Option A: Powder type is incorrect because powder extinguishers are more suitable for fires involving solids, not liquids.

Option B: Liquid type is not a standard classification of fire extinguishers. Fire extinguishers are categorized based on the type of fire they are designed to combat (e.g., Class A, B, C, etc.), rather than being called "liquid type."

Option C: Soda acid type is not typically used for petroleum fires. Soda acid extinguishers are more suitable for Class A fires involving ordinary combustible materials.