Fire Extinguishers

It is important for firefighters to follow rules and regulations because the rules and regulations were probably well thought out, discussed, and voted on, and exist for reasons of health and safety.

If the question you're trying to ask is "Why can someone use carbon dioxide as a fire extinguisher?"

The answer is that all combustion reactions (burning) require oxygen. Overwhelming the environment surrounding the fire with CO2 limits the amount of oxygen available to the reaction, stopping the fire.

The answer depends upon whether the boat is under US or Canadian regulations, or something else, whether it is a motorboat, and how big it is, among other things.

Not all boats are required to have a B1 fire extinguisher in the US or Canada.

A water fire extinguisher (called a "Class A"extinguisher) is only useful on fires involving wood, paper, cardboard, and most plastics. An extinguisher labelled "Class B" is for fires involving flammable liquids, and "Class C" is for electrical equipment fires.

A fire extinguisher cools down or extinguishes a fire. There are five types of fire extinguishers used in the US.

Most extinguishers have a pressure gauge which has a Red Zone marked for full pressure. Just look to see if the needle indicated pressure at near the Full mark. Also, most extinguishers are filled with powder. This powder can pack down and cake when not agitated. It is a good idea to turn the extinguisher over, upside down several times. You will feel the powder move about inside the housing.

Roughly $10-$25 for many. Value is driven by condition and rarity. Check Ebay, and look for ones that look like yours. A few very rare types can be expensive.

Fire is a chain reaction of fuel combining with oxygen when there is enough heat to continue burning. The actual "fire" is taking place only at the surface of the fuel, i.e., the "base" of the fire. Spraying fire extinguisher chemicals or water into the smoke or flames is not as effective as aiming directly at the source of the fire.

Consider it empty and and replace with a new or refreshed one.

Foam, dry powder or CO2 gas- a Class B extinguisher

Depends of the type of fire extinguisher.

Common CO2-extinguishers are filled with with compressed CO2. Once released it cooles down the fire below it's burning- or ignition-temperature and replaces the Air. The lack of oxigens will then suffocate the fire.

No matter what type of extinguisher, it's always about cooling of suffocating the flame.

The main source or grouping of the fire, in a sweeping motion.

If it belongs to someone else and you're doing it without permission, yes; if it belongs to you, then "stupid" is probably a more apt term for it. There's not a great deal of fun to be had in playing with the now-ubiquitous dry chemical types anyway. Anecdote: many universities require graduate students in chemistry to take a fire safety class. In one I took, the instructor told us that they used to have the old brass pump-style water fire extinguishers in the dorms; they would occasionally during an inspection find one that had been filled with beer as a sort of impromptu keg. The good news was that beer would at least still put out a fire. When they discovered one that had been filled with gasoline, though, they removed those and replaced them with carbon dioxide extinguishers. However, they found those frequently needed recharging: students had discovered you could chill a can of beer quickly by sticking it in the horn and setting off the extinguisher for a second. They were in the process of replacing those with dry chemical extinguishers; in the words of the fire safety instructor, "The students haven't yet found any way to do anything with those except make a mess, which they have to clean up, so they don't get tampered with much."

Assuming this extinguisher is following Australian rules, that is a dry chemical extinguisher. If this is an American extinguisher, there are no standards, only conventions, and I couldn't tell you by color alone.

It actually is used, but only to cool the burning structures. If you add water to a large oil or gas fire, it would carry the burning fuel around, since the fuel is lighter and will float on the water.

Class B extinguishers are used for liquid fires, typically gasoline and oil fires. Extinguishers rated ABC will be effective against all three classes, but seldom as effective as a dedicated Class B extinguisher.

how do you punctutate a fire extinguisher of course is a good idea

FIRE extinguishers are used to put out fire.

A portable fire extinguisher will take between 10 and 60 seconds to be empty, unless it is larger than 40 pounds.

A fixed fire extinguisher may last between 40 seconds and four minutes (the latter to fill an airplane hangar with high-expansion foam).

Those markings help to identify which class of fire each type of fire extinguisher is intended for:

Class A: ordinary combustibles;

Class B: flammable liquids

Class C: energized electrical fires.

A class A:B:C extinguisher may be used on any of these types of fires.

A class A extingquisher is intended to put out things that when burned, leave an ash--hence class A. They are usually some form of liquid or plain water. A class B fire is a liquid fire and using a class A extingquisher will only add volumn to the liquid that is burning making it a larger area to put out. With a class B fire you need something that will smother the fire without making it spread out even farther.

A Class A fire extinguisher is the least expensive and most easily available type of extinguisher to use on wood or paper fires. They are normally filled with water or water-based foam and pressurized with air.

most likely not because the chemicals could get into your food and ruin our digestive system and any other system involved

Class B