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8 Questions

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Timber Truss Roof Collapses

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Questions and Answers

Which one of the following is a recommended tactic for extinguishing a fire in a truss attic space?

Direct a hose stream from below into the attic truss

Prepare for a defensive outside attack and protect exposure (correct)

Sweep the underside of the roof with a hose line

Use a remote ladder to access the attic space

What is the main danger of a concealed fire in a truss attic space?

The fire can create a major fire plume and spread to adjoining buildings

The fire can feed on the roof deck

The fire can collapse the roof and walls

The fire can spread throughout the large attic space (correct)

Which statement about roof ventilation in an occupied building is true?

First venting should be limited to windows near the fire inside the building (correct)

Vent tall windows by placing ladders upwind of glass

Open skylights or scuttle covers quickly and leave the roof immediately

Roof ventilation is a life-saving tactic to prevent smoke inhalation

What is the main priority in a church fire?

Life hazard Signup and view all the answers

Which types of buildings frequently use timber truss construction?

Supermarkets and auto dealerships Signup and view all the answers

What is the main fire location in a timber truss building?

In the roof structure, not in the content below Signup and view all the answers

What is the danger of a truss concealed by a ceiling?

It can cause the collapse of the front or rear masonry wall Signup and view all the answers

What is the significance of early identification of a truss during a fire?

It indicates the location of the main fire Signup and view all the answers