Taxpayers

Question 0

Wood truss roofs fail

Answer 0

Without warning

Question 1

The most common type of roof on taxpayers

Answer 1

Wood joist covered by tongue and groove boards or plywood

Question 2

Failure of one truss element can cause

Answer 2

Failure of the entire truss. Failure can occur in the early stages of the fire

Question 3

Unprotected open web steel joists are particularly vulnerable to elevated temperatures and may collapse after only

Answer 3

5 or 10 minutes

Question 4

Transmit a 2nd alarm for a taxpayer fire in these situations

Answer 4

Store fire with extension to cockloft
Store fire with extension to adjoining occupancy
Advanced cellar fire

Question 5

Taxpayer fires that need “extra engine and truck”

Answer 5

Advanced store fire with 2 lines operating

Question 6

The last resort strategy at a taxpayer cellar fire is

Answer 6

Flooding the 1st floor with a Stang nozzle or tower ladder pipe

Question 7

What engine company has to insure the the sprinkler system is supplied at taxpayer cellar fires

Answer 7

3rd Engine (recent new change)

Question 8

At a store or cockloft fire what engine is responsible to insure that the sprinkler system is supplied

Answer 8

3rd engine

Question 9

Under the 1968 building code the maximum permitted area for an unsprinklered building is

Answer 9

7500 square feet
If the building was sprinklered then the square footage is unlimited

Concealed roof spaces need to be cut into areas not exceeding 3000 square feet unless it was sprinklered

Question 10

Updated calculations have revealed that bowstring truss roofs may only support _______ % of the load they were originally designed to hold

Answer 10

40%

Question 11

Another common bowstring truss sped sign flaw involves snow loads. Early building codes assumed snow accumulations of uniformed depth. In reality, snow that drifts due to wind can be significantly deeper in one area, particularly

Answer 11

Behind raised parapet walls. This eccentric (off center) unbalanced, concentrated load can create an overload on the trusses

Question 12

The most common type of flooring in a taxpayer

Answer 12

Tongue and groove boards or plywood

Question 13

Under NO circumstances shall any member operate on the roof of any building involved in a content or structural fire with a

Answer 13

Wooden, metal or combination bowstring truss design

Question 14

Before lines are operated initial the roof all interior operations must cease or personnel withdrawn to a safe area. It must be remembered that the primary purpose of roof lines is to

Answer 14

Protect members operating on the roof and prevent fire extension to exposures

Question 15

In must be remembers that in a high heat condition, combustible gases and highly heated contents are now present in the structure. All that is missing is a source of air or oxygen to create an explosive fire. A room or fire area requires only _____% of its space to contain the explosive mixture for the entire area to possibly explode

Answer 15

25%

Question 16

New Change

What unit is responsible for ensuring the sprinkler system is supplied at a taxpayer CELLAR fire

Answer 16

3rd Engine

Same engine as in a store/cockloft fire

Question 17

True or False

The roof sector supervisor can start a trench cut only after approval by the IC

Answer 17

False

You can start the trench without approval 1st but you must notify the IC that a trench has been started

Question 18

2nd alarm situations at Taxpayer fires

Answer 18

• Extension to cockloft
• Extension to adjoining
• Advanced cellar fire

Question 19

When do you special call a TL

Answer 19

Only if one is not assigned on the initial alarm AND its use is anticipated