Which class of fire extinguisher is appropriate for a fire involving a flammable liquid?

Answer 1

This is the black label isn't it; the carbon dioxide horn?

It is important to anticipate the type of fire you are likely to have and what extinguishers (and where) are available. In your laboratory, there will be posters on the wall that indicate the type of extinguisher to use on a particular fire. However, keep in mind that most people tend to use whatever comes to hand in an emergency.

Liquid nitrogen is the best extinguisher to use before the fire takes off (i.e., if you have a fume hood fire). You also don't have to clean this up.

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Answer 2

Wyatt Adkins

Class B fire extinguishers are appropriate for fires involving flammable liquids.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.