Fire Safety Quiz

During a science class, JAMES accidentally caused a small electrical fire. Which type of fire extinguisher is most suitable for electrical fires?

• Water

• Foam

• Carbon Dioxide (CO2)

• Wet Chemical

Answer explanation

Carbon Dioxide (CO2) extinguisher is most suitable for electrical fires as it does not conduct electricity and can effectively put out the fire without causing harm.

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DOK Level 1: Recall

Avery and Riley are cooking in the kitchen when a fire involving cooking oils and fats starts. How should they classify this fire?

• Class A

• Class B

• Class C

• Class K

Answer explanation

Avery and Riley should classify the fire involving cooking oils and fats as Class K fire, specifically designed for kitchen fires involving cooking oils and fats.

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DOK Level 1: Recall

During a science experiment, DOMINIC and KARIM accidentally caused a small electrical fire. Explain why a water extinguisher should not be used on electrical fires.

• Water can cause the fire to spread.

• Water can conduct electricity, posing a risk of electric shock.

• Water extinguishers are too heavy to handle.

• Water can damage the electrical equipment.

Answer explanation

Water can conduct electricity, posing a risk of electric shock.

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DOK Level 2: Skill/Concept

Describe the steps you would take to use a fire extinguisher properly, as demonstrated by RICHARD and CALLISTA during the safety drill.

• Pull the pin, aim at the base of the fire, squeeze the handle, and sweep side to side.

• Pull the pin, aim at the top of the fire, squeeze the handle, and sweep side to side.

• Pull the pin, aim at the base of the fire, squeeze the handle, and sweep up and down.

• Pull the pin, aim at the top of the fire, squeeze the handle, and sweep up and down.

Answer explanation

The correct steps to use a fire extinguisher properly are to pull the pin, aim at the base of the fire, squeeze the handle, and sweep side to side, as demonstrated by RICHARD and CALLISTA during the safety drill.

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DOK Level 2: Skill/Concept

During a cooking class, RILEY and KARIM noticed a fire had started in a kitchen involving a deep fryer. Which type of fire extinguisher would you use and why?

• Water extinguisher, because it cools down the fire.

• Foam extinguisher, because it smothers the fire.

• Carbon Dioxide (CO2) extinguisher, because it displaces oxygen.

• Wet Chemical extinguisher, because it reacts with the oil to form a soap-like solution that cools and smothers the fire.

Answer explanation

Wet Chemical extinguisher, because it reacts with the oil to form a soap-like solution that cools and smothers the fire.

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DOK Level 3: Strategic Thinking

During a science class, RICHARD and AVERY were discussing different types of fires. Identify the class of fire that involves flammable gases such as propane and butane.

• Class A

• Class B

• Class C

• Class D

Answer explanation

Class C fires involve flammable gases like propane and butane, making it the correct choice for this scenario.

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DOK Level 1: Recall

During a science experiment, ARI and DAYTON accidentally started a fire involving metals like magnesium and titanium. Which fire extinguisher is most appropriate to use?

• Water

• Foam

• Dry Powder

• Carbon Dioxide (CO2)

Answer explanation

Dry Powder fire extinguisher is most appropriate for fires involving metals like magnesium and titanium as it can effectively smother the fire without causing any adverse reactions.

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DOK Level 1: Recall

Riley and Avery are learning about fire safety in school. Explain the importance of the PASS technique in using a fire extinguisher.

• It ensures the fire extinguisher is used efficiently and effectively.

• It helps in identifying the type of fire.

• It ensures the fire extinguisher is not damaged.

• It helps in determining the cause of the fire.

Answer explanation

It ensures the fire extinguisher is used efficiently and effectively.

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DOK Level 2: Skill/Concept

Riley and Ari are discussing fire safety. Analyze the potential risks of using a foam extinguisher on a Class C fire.

• Foam can cause the fire to spread.

• Foam can conduct electricity, posing a risk of electric shock.

• Foam can damage the electrical equipment.

• Foam can evaporate quickly, making it ineffective.

Answer explanation

Foam can conduct electricity, posing a risk of electric shock.

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DOK Level 3: Strategic Thinking

During a science class, RICHARD and CALLISTA were discussing fire safety. What is the primary function of a Carbon Dioxide (CO2) fire extinguisher?

• To cool down the fire.

• To displace oxygen and smother the fire.

• To form a barrier between the fuel and the fire.

• To absorb the heat from the fire.

Answer explanation

The primary function of a Carbon Dioxide (CO2) fire extinguisher is to displace oxygen and smother the fire.

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DOK Level 1: Recall