CBI Fire Protection & Life Safety Systems 2

Question 1

Which of the following materials is classified as a Class A interior finish under ASTM E84 testing?

Accepted Answer

Flame spread index of 0–25

Answer

ASTM E84 Class A interior finish requires a flame spread index of 0–25 and a smoke-developed index of 0–450.

Question 2

What is the primary function of a fire damper installed in an HVAC duct penetrating a fire-rated wall assembly?

Accepted Answer

To prevent fire and smoke from spreading through ductwork

Answer

Fire dampers close automatically upon detecting heat, preventing fire from spreading through duct penetrations in fire-rated barriers.

Question 3

According to the IBC, what is the minimum width of a means of egress corridor serving an occupant load of 50 or more?

Accepted Answer

44 inches

Answer

The IBC requires corridors serving an occupant load of 50 or more to have a minimum clear width of 44 inches.

Question 4

A portable fire extinguisher labeled '2A:10B:C' can be used on which classes of fire?

Accepted Answer

Class A, Class B, and Class C

Answer

The rating '2A:10B:C' indicates the extinguisher is rated for Class A (ordinary combustibles), Class B (flammable liquids), and Class C (energized electrical equipment) fires.

Question 5

Which of the following occupancies requires an automatic fire sprinkler system under the IBC regardless of building size?

Accepted Answer

Group H (High-Hazard)

Answer

Group H high-hazard occupancies require automatic fire sprinkler systems due to the inherent danger of the materials stored or used.

CBI - Certified Building Inspector Practice Test

CBI - Certified Building Inspector Practice Test

CBI Fire Protection & Life Safety Systems 2