Taxpayers Flashcards
Taxpayers:
Will removing the cornice provide access to the cockloft?
1900-1920s?
1920s-1960s?
(Most prevalent type of taxpayer)
Usually will provide access
It will usually not
Taxpayers:
What is the height of the ceiling in the mezzanine area?
Usually below average
Also usually not enclosed
Taxpayers:
What is the rule for a sprinkler protection in the 1938 code?
1968 code?
2008 code?
1938 - 10,000 sq ft
1968 - 7500 sq Ft
2008 - 12000; or all floors exceeds 24000 ft; or storage is on high piles racks
Taxpayers:
What is the height of a cockloft?
4” - more than 6’
Taxpayers:
What is the most common roof?
Wood joists covered with tongue and groove or plywood
Taxpayers:
Open web steel joists span distances up to what?
60 feet
Taxpayers:
Open web steel joists exposed to heat may collapse in how long?
5-10 mins
Taxpayers:
How can you tell if a wall above a roof surface is a fire division?
Hit with a tool, if it is masonry then it is a fire division
Taxpayers:
Should you cool a steel beam with water?
Yes, without hesitation.
If the beam is sagged, then nobody should be allowed in the collapse zone. If cooled they will contract to its original size and may pull them out of their supports.
Taxpayers:
New type versus old type of construction which is better for my fire protection viewpoint?
New type
Many are built on a concrete slab
Taxpayers:
What percent strength does a truss roof have compared to its original intent?
Only 40% of the load they were originally designed to hold
Taxpayers:
How long does it take a cast iron column to fail?
30 minutes
Taxpayers:
How can you access a cellar fire for stream operation from the street?
Paneling under the display windows at Street front
Taxpayers:
A warning sign of a structural collapse is a fire burning out of control for how many minutes?
20 minutes
Taxpayers:
What color of smoke is associated with Backdraft?
Dirty brown, yellow brown, gray yellow
Taxpayers:
What is the percentage of explosive mixture in a room required for a back draft to occur?
25
Taxpayers:
Is the high portion of the cock loft at the front or the rear of the building?
Front
** The standard flat roof may have little or no pitch**
Taxpayers:
What is natural versus mechanical ventilation?
Mechanical is using Fans, natural is opening holes
Taxpayers:
What size hole should be cutting the roof?
8 x 8
Taxpayers:
The immediate ventilation and cutting of an effective hole calls for what resources?
2 saws, 4 members
**roof sector supervisor MUST supervise when more than one saw is operating
Taxpayers:
In most cases does a roof fall section by section or in one piece?
Section by section
Taxpayers:
When using a fog tip to ventilate smoke, how far back should you stand?
4-5’
Taxpayers:
At what types of fires should the vent support group be used?
Cellar fires
Taxpayers:
What affects the outcome of an operation more than anything?
(At taxpayer fires?)
Ventilation
Taxpayers:
How do you ventilate an open web steel joist roof?
Skylights and Scuttle covers
Emphasis should also be placed on horizontal ventilation
Taxpayers:
If it is discovered that you were operating on a gypsum roof?
Immediately notify the roof supervisor and IC and evacuate
Taxpayers:
Can you operate on the interior at a gypsum roof?
Interior ops shall be conducted from areas of safety
Taxpayers:
When do you call an extra one and one?
When do you call a second alarm?
1/1 = Two lines operating on an advance the fire in a store
2nd = Extension to a cockloft, extension to adjoining occupancy, or advanced fire in a cellar