Fire Safety Fire Safety Fundamentals 2

Question 1

What is flashover in fire behavior?

Accepted Answer

The near-simultaneous ignition of all combustible materials in a room when temperatures reach approximately 1,100°F

Answer

Flashover occurs when radiant heat from the fire and hot gases causes all exposed combustible surfaces in a room to ignite nearly simultaneously, creating fully developed fire conditions.

Question 2

What is the purpose of a fire wall in building construction?

Accepted Answer

To prevent fire from spreading between sections of a building or between adjacent buildings

Answer

Fire walls are specially constructed barriers rated to resist fire penetration for specific time periods, preventing fire spread between building sections or adjacent structures.

Question 3

What is the difference between a fire door and a regular door?

Accepted Answer

Fire doors are rated to resist fire for a specific time period and have self-closing mechanisms

Answer

Fire doors are constructed and tested to withstand fire for rated periods (20-180 minutes) and include self-closing devices to ensure they remain closed during a fire.

Question 4

What is the fire safety concern with vertical openings in buildings like stairwells and elevator shafts?

Accepted Answer

They create a 'chimney effect' allowing fire and smoke to spread rapidly to upper floors

Answer

Vertical openings act as chimneys, allowing hot gases and smoke to rise rapidly through the building, spreading fire to upper floors much faster than horizontal spread.

Question 5

What type of construction material is classified as 'non-combustible'?

Accepted Answer

Steel, concrete, and masonry

Answer

Non-combustible materials like steel, concrete, and masonry do not burn or contribute fuel to a fire, though steel can lose structural strength at high temperatures.

Fire Safety Practice Test

Fire Safety Practice Test

Fire Safety Fire Safety Fundamentals 2