Chap 13 Commercial Buildings

Question 1

When fighting fire in a commercial structure with more than one entrance, what is a RIC consideration?

Answer 1

Placing a RIC at each entrance.

Question 2

This is recommended to use when fire fighters are working in a commercial building without a hoseline in a smoke and low visibility environment .

Answer 2

Guide rope

Question 3

Adjoining occupancies are considered to be exposure issues for Strip malls, what actions should fire fighters make to protect them?

Answer 3

• Gain access to each adjoining occupancy and have a hose line ready
• Open the ceiling areas that are adjacent to the main fire and protecting adjacent structures from horizontal fire spread through the cockloft.

Question 4

These add a significant amount of weight to the roof structure of commercial buildings.

Answer 4

HVAC units

Question 5

Difference in roof assemblies with older large commercial buildings and newer ones with regards to HVACs

Answer 5

Newer commercial buildings use concrete sections that is stressed typically by tensioned steel cables creating an additional hazard

Question 6

What is a potential hazard, especially in large commercial buildings, when concrete is used on the roof or walls?

Answer 6

Heat causing the Spalling that could lead to falling concrete debris.

Question 7

Charring or pyrolyzing acts as what on heavy timber components?

Answer 7

Insulator, withstands destruction for a longer period of time.

Question 8

A chemical change in wood resulting from the action of heat?

Answer 8

Pyrolyzing.