Firefighter Building Construction

Question 1

What are the five types of building construction classified by NFPA 220?

Accepted Answer

Type I, Type II, Type III, Type IV, and Type V

Answer

NFPA 220 classifies buildings as Type I through Type V based on the fire resistance ratings required of their structural elements.

Question 2

Which type of building construction is considered the most fire-resistive?

Accepted Answer

Type I (Fire-resistive)

Answer

Type I (Fire-resistive) construction requires all structural components to meet the highest fire-resistance ratings, typically using protected steel or reinforced concrete.

Question 3

What is 'balloon frame' construction?

Accepted Answer

A framing method where wall studs run continuously from the foundation to the roof without interruption

Answer

In balloon frame construction, studs extend from the foundation to the roof without interruption, allowing fire to spread rapidly through wall cavities to upper floors and the attic.

Question 4

Which type of building construction uses heavy timber structural members with minimum dimensions specified by code?

Accepted Answer

Type IV (Heavy Timber)

Answer

Type IV (Heavy Timber) construction requires large wood members (minimum 8x8 inches for columns) that char slowly rather than failing quickly, historically used in mills and factories.

Question 5

What is the primary hazard of lightweight truss construction during a fire?

Accepted Answer

Lightweight trusses can fail rapidly because the small metal connector plates lose strength quickly under heat

Answer

Lightweight trusses rely on small metal gusset plates that lose structural strength rapidly when heated, causing early and sudden failure before firefighters may realize the danger.

Firefighter Practice Test

Firefighter Practice Test

Firefighter Building Construction