FIREFIGHTING PROCEDURES - LOFTS Flashcards Preview

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Flashcards in FIREFIGHTING PROCEDURES - LOFTS Deck (10)
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WHAT TYPES OF BUILDING CLASS CAN LOFTS BE?

CLASS 1 - FIREPROOF
CLASS 2 - FIRE PROTECTED
CLASS 3 - NON FIREPROOF
CLASS 6 - HEAVY TIMBER
++Lofts can be Class 1, 2, 3 or 6 constructions.++

1

WHAT IS LEAST COMMON TYPE OF LOFT?

MILL/HEAVY TIMBER

++Mill (Heavy Timber) constructed lofts are the least common type.++

2

WHAT IS THE MOST COMMON TYPE OF LOFT?

FIREPROOF LOFTS

++Fireproof lofts are the newest and most common type.++

3

WHERE ARE THE 3 PLACES THAT A LOFTS GRAVITY TANK SECTION SHUT OFF VALVES BE LOCATED?

•INSIDE GRAVITY TANK ENCLOSURE

•DIRECTLY BELOW THE GRAVITY TANK

•ALONG THE RISER INSIDE THE BUILDING

++Section shut-off valves for gravity tanks can be located inside a gravity tank enclosure, directly below the gravity tank, and along the riser inside the building.++

4

THE LOFT BULLETIN STATES: At 1,100 degrees Fahrenheit, cast-iron loses ____% of its original strength.

58%

•At 1,100 degrees Fahrenheit, cast-iron loses 58% of its original strength.

•The strength lost is cumulative and is never regained.

5

WHAT IS THE MOST PREVALENT TYPE OF FIRE ESCAPE FOUND IN LOFT BUILDINGS?

STANDARD

++Standard - the most prevalent fire escape found. They have a width of 3-4 feet and stairway angles of 45 degrees, 60 degrees, 75 degrees or steeper.++

6

WHAT IS THE PREFERABLE MEANS OF ACCESSING A COUNTER-BALANCE STAIRWAY/LADDER TYPE FIRE ESCAPE AT LOFT BUILDINGS?

PORTABLE LADDER

++Members should not operate directly underneath these hazards. A portable ladder is the preferable means of accessing these fire escapes.++

7

WHAT IS THE MOST DANGEROUS TYPE OF FIRE ESCAPE AT A LOFT BUILDING?

VERTICAL

++Vertical - serve each floor level but lack intermediate landings or balconies. Their straight-up position makes these type fire escapes the most dangerous for both firefighters and building occupants to utilize.++

8

HOW MUCH STRONGER ARE SQUARE COLUMNS COMPARED TO ROUND COLUMNS?

20%

++Square columns (20% stronger than round ones of equal dimension) are used on the lower floors while round columns are reserved for the upper floors.++

9

AT WHAT DEGREES CAN STEEL CABLES OR TENSION RODS (STARS) FAIL?

800

++Steel tension cables or rods can fail at 800 degrees Fahrenheit.++

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