Type B
Base of the flames.
What 'type' the fire is. The right extinguisher must be used for any fire. Or, more importantly - it can be very dangerous to use the wrong type of extinguisher, such as one with water should never be used on an electrical fire.
powder or foam :)
foam fire extinguisher or a fire retardant spray
the kind that puts the freaking fire out
Neither a gasoline or electrical fire should be put out by water. A gasoline fire should be put out by a fire extinguisher labeled A B C. An electrical fire should first have the power switched off. Then the fire extinguisher should be used.
Have it recharged by a service company
The bottom or base- where the fuel is located.
type B
You need to use a Class B extinguisher on flammable liquids.
A water-type or water-based foam type of extinguisher should not be used on an electrical fire because water and foam are electrical conductors and could result in electrocution of the person using the extinguisher or anyone stepping in the water.
Fire extinguisher