A foam-type portable fire extinguisher would...

A foam-type portable fire extinguisher would...

Question 1 of 2707066636eec28f7522a1c51c35f

A foam-type portable fire extinguisher would be most useful in combating which type of fire?

Question 1 of 27070

Q

A foam-type portable fire extinguisher would be most useful in combating which type of fire?

🔍 Key Concepts

• Fire classes (A, B, C, D) and what each class represents on ships • How foam extinguishers work (smothering and separating fuel from oxygen) • Which extinguishers are safe or unsafe to use on electrical or metal fires

💭 Think About

• First, match each answer choice to the correct fire class (A, B, C, or D). Which class is foam primarily designed for? • Think about what happens when foam is applied: it forms a blanket. On which type of burning material is that blanket most effective? • Consider safety: on which types of fires could foam cause extra danger, such as electrical shock or violent reactions?

✅ Before You Answer

• Identify which option involves flammable liquids on the surface, where a blanket of foam could cut off oxygen. • Eliminate any option involving energized electrical equipment, since many foam extinguishers are not ideal there. • Eliminate the option involving combustible metals, which often require special dry powders, not foam.