Flashcards in Taxpayers Deck (63)
Open web steel joists are particularly vulnerable to elevated temperatures of a fire and may collapse after how many minutes?
5 to 10
Axial Load is a force ____ to the supporting member. An Axial load is ____ and ____ and is evenly applied to the bearing structure
Perpendicular, straight, true
An eccentric load is a force whose resultant is perpendicular to the supporting member but does not pass through the center of the mass. The load is ____ evenly applied to the supporting or bearing member
Standard gypsum planks are ____ inches thick, ____ feet wide, and ____ feet long
2, 2, 8
A marquee is a permanent hood which projects over an entrance to a building and is or is not supported by posts or columns?
A canopy is or is not a supported, rooflike covering which projects from a wall as an ornamental feature?
Is a supported
A taxpayer is commonly taken to mean a business structure ____ to ____ stories in height
1 to 2
The area varies from ____ ft x ____ ft to areas of whole city blocks, the most common being approximately ____ ft x ____.
20ft x 50ft, 100ft x 100ft
These buildings are usually single structures housing as many as 1 to ____ different businesses.
In the older type taxpayer usually one story in height are you able to remove the cornice to gain access to the cockloft area?
True or false, the most prevalent type were built from the 1920's in the 1960's. They are usually larger in area than the older types and many are one tenant occupancies, such as supermarkets, bowling alley's, restaurants, factories, etc.
Size of cockloft?
4 inches to more than 6 ft
Updated calculations have revealed that bowstring truss roofs may only support ____% of the load they were originally designed to hold
Steel trusses tend to ____ when losing their strength because of elevated temps but wood tends to ____
Do open web steel joists have a fire resistance rating? They are used to span distances up to ____ feet?
Open Web Steel joists are particularly vulnerable to elevated temps and may collapse after only how many minutes?
5 to 10
TXPR: an average 50 foot long steel beam, heated uniformly over its length to 970F will extend in length approximately how many inches? At 1000F a 100ft long beam will have extended in length how many inches?
When these steel beams are heated from ____ to ____ their yield strength drops dramatically and they start to soften and fail
1000F to 1500F
TXPR: Cast iron columns are unpredictable and fail, on the average, in about ___ minutes in fire endurance tests
One of the indications of collapse at a fire in a taxpayers is the inability to make successful headway against a heavy fire condition in how many minutes?
It is recommended that units encountering fires in Smoke Shops stretch a ____ handline and proceed with extreme caution.
2 1/2 inch
What are the colors of smoke associated with a backdraft?
Dense blk, Dirty Brown, Yellow Brown, Gray Yellow
True or false? All horizontal and initial vertical ventilation tactics must be controlled, communicated, and coordinated by the Ladder Company Officer?
Recommended size of ventilation hole at taxpayer fire?
8ft x 8ft
The immediate ventilation and cutting of an effective size hole on the roof calls for how many saws and how many members?
2 and 4
True or false? There is no need for a roof sector supervisor when more than one power saw is in operation on the roof?
Can a company officer be designated the roof sector supervisor? If cutting operations are CRITICAL the roof sector supervisor must be a ____
When cutting the floor to a taxpayer the cuts should be located where? And all such cuts should be covered by ____
As near to the windows as possible and away from doorways and aisles. Hoselines
A trench cut on the roof of a taxpayer should be atleast ____ ft wide