Fire Extinguisher Classes & PASS Flashcards

Fire Extinguisher Classes & PASS flashcards — the free 17

Every question and answer on the free cards, written out. Check them against your own textbook before you spend anything.

What a fire 'class' letter describes

The fuel a fire involves — but the letters are assigned differently in different countries

The class letters used in the United States

A, B, C, D, K — NFPA 10's set. OSHA's own rule defines only A to D; K came from NFPA in 1998

The class letters used in Europe (BS EN 2)

A, B, C, D, F — there is no K, and no letter at all for electrical

The class letters used in Australia and New Zealand

A, B, C, D, E, F — E is electrically energised equipment

Class A in the United States

Ordinary combustibles — paper, wood, cloth, and some rubber and plastics

Class A in Europe (BS EN 2)

Fires involving solid materials such as wood, paper or textiles

Class B in the United States

Flammable or combustible liquids, flammable gases and greases — gases are inside Class B here

Class B in Europe (BS EN 2)

Flammable liquids — petrol, diesel, oils. Gases are not in Class B here; they are Class C

Class C in the United States

Energized electrical equipment — the rating is about the agent being non-conductive

Class C in Europe (BS EN 2)

Gases — methane, butane, hydrogen. It is not the US Class C, which is energized electrical

Class D on both sides of the Atlantic

Combustible metals in both systems — magnesium, titanium, zirconium, sodium, lithium, potassium (US wording)

Class K

A US class — cooking oils and fats in cooking appliances. Europe and Australia letter this F

Class F

A European and Australian class — cooking oils and fats, as in deep-fat fryers. The US letters it K

Where electrical fires sit in the European scheme

Nowhere in the letters — EN 2 classes fires by fuel, so electrical risk is described outside A–F

PASS

Pull, Aim, Squeeze, Sweep — the US mnemonic (OSHA, USFA) for operating a portable extinguisher

What the number before the A means on a US extinguisher label

Class A capacity — each point is about 1.25 gallons of water equivalent (US rating scheme)

What the number before the B means on a US extinguisher label

The square footage of flammable-liquid fire a non-expert should be able to put out (US rating)

Fire Extinguisher Classes & PASS flashcards — questions people ask

How many cards are in the Fire Extinguisher Classes & PASS flashcard deck?

The Fire Extinguisher Classes & PASS deck on PuzzlePage has 17 cards, and all 17 are free to play and free to download with no account and no payment. 17 cards. The lettered fire classes are a closed set in each country — five in the United States, five in Europe, six in Australia — plus the PASS mnemonic and the two numbers on a US rating label. Everything past that would be padding.

What is on the fire extinguisher classes & pass flashcards?

A reference to the fire class letters: NFPA 10's A/B/C/D/K in the US, BS EN 2's A/B/C/D/F in Europe, the Australian A–F, and the PASS mnemonic. Cards look like this: What a fire 'class' letter describes → The fuel a fire involves — but the letters are assigned differently in different countries; The class letters used in the United States → A, B, C, D, K — NFPA 10's set. OSHA's own rule defines only A to D; K came from NFPA in 1998. The deck is written for grades 9–12 / cte and workplace-safety coursework and filed under career, tech & modern.

Can I study fire extinguisher classes & pass flashcards online for free?

Yes. All 17 cards of the Fire Extinguisher Classes & PASS deck play free in any web browser at puzzlepage.app, with no account, no app and no card details. It works on a phone, tablet, Chromebook, laptop or classroom projector. Practice mode flips through the cards with nothing scored; quiz mode makes you answer each card before it flips, times the run and scores it.

Are the fire extinguisher classes & pass flashcards accurate?

Every card in the Fire Extinguisher Classes & PASS deck cites two independent published sources — two different organisations, not a standards body and a site reprinting it — and a script checks that, rather than taking the writer's word for it. A second specialist then re-verified the deck against sources of their own, without reading the citations first. That is the difference from a user-generated flashcard site, where the cards are whatever a stranger typed and nobody is accountable for them.

Can I print the fire extinguisher classes & pass flashcards?

Yes. The Fire Extinguisher Classes & PASS cards are available as a printable double-sided PDF to cut up, as well as playable in the browser. The whole 17-card printable is free to download, with no account.

How should I use the Fire Extinguisher Classes & PASS deck to revise?

Start in practice mode and go through the Fire Extinguisher Classes & PASS deck once without scoring, to find out which cards you already know — the deck is dealt in a different order every time you open it, so you are recalling the card rather than its position. Then switch to quiz mode, which times and scores the run and lets you re-run only the cards you missed. Use the "flip deck" control to swap which side is the question: recognising an answer is much easier than producing one, so a deck you find easy one way round is usually the harder and more useful drill the other way. Two or three short sessions across a week beat one long one, which is the whole reason flashcards work.

What grade level are the fire extinguisher classes & pass flashcards for?

The Fire Extinguisher Classes & PASS deck is written for grades 9–12 / cte and workplace-safety coursework. Because the cards are plain term-and-answer pairs, they are also used outside that band — by adults revising career, tech & modern, and by teachers running them as a whole-class starter on a projector.