Ch 5 "H"- Types Flashcards
(42 cards)
Generally in the design of H type, stairs and living units are located in the vertical lines of the letter ‘H’. Where are the elevators, and a large entrance lobby found?
In the throat.
‘H’ types construction began in about what year?
1916 (5.1)
True or False
H types contain exterior walls of masonry, generally brick, floors, roof and interior framing are partly or wholly made of word, and columns and girders are unprotected steel.
True (5.2.1)
Steel, when heated, expands and elongates.
What can this do to a wall at a fire?
Can cause it to BULGE, move, or even collapse, if the steel is set within the wall.
(5.2.3)
Steel columns are vertical structural members designed in an ‘H’ type shape; they are also known as _______.
True or false:
When located in the inner framework of a building, these may extend from the basement up into the roof space or cockloft area.
1) channel rails
2) false. **extend from the first floor into the roof space or the cockloft area.
note: H Type basements are unpierced. These structural members do not pass through them.
What is the most common roof found on H types and how is it fastened to the roof beams?
Most common roof– top floor ceiling is several feet below the main roof beams. Roof boards fastened directly to the top of the roof beams. This provides a sturdy roof. (5.2.4B)
What is an inverted, raised or reversed roof?
Main roof beams are at the ceiling level (not above as in common roofs) and a framework is raised above these beams with the roof boards attached.
- normally springy
- permits roof pitch, for drainage
T or F
If there is a heavy body of fire in the cockloft, expect a full collapse of the inverted roof?
False
* expect at least a partial collapse of the inverted roof.
5. 2.4B
At what type of fires are transverse stairs a “tremendous asset?
Heavy fire operations on the top floor
5.2.5
In these type of stairs, floor landings are recognizable by their limited space and absence of a public hall.
Isolated Stairs
5.2.5
_______ are often located in voids behind closets. Our main concern is that they are not fire stopped.
How large are these voids?
channel rails
- about ONE SQUARE FOOT OR LARGER
- may be larger when void is built to include waste and water pipes.
- usually closets are built back to back.
When fire is knocked down and opening up begins, areas where the lath has been burned must be examined for the presence of these columns. If detected, which area(s) below the fire must be checked immediately?
Locations above and below the fire.
5.2.6
If a soil pipe is hot to the touch, what is required?
A top floor examination is required AND notification made to the officer and the IC.
*not an inspection hole.
True or False
First to arrive aerial ladders shall be positioned so as not to block off the front entrance courtyard, unless rescue operations must be performed?
True. TL should be given the front entrance/courtyard.
5.4.2
If fire is showing out windows in the throat, courtyard and front windows, and a TL stream is being used. where should it be directed first?
1) Throat
2) Advanced towards front
3) Front windows
(5. 4.2)
What fire conditions in an H type indicate roof operations? (4 are named)
1) Top floor fire
2) shaft fire
3) two floors involved
4) heavy fire conditions
What fire conditions in an H type indicate roof operations? (4 are named)
1) Top floor fire
2) shaft fire
3) two floors involved
4) heavy fire conditions
(5. 4.3)
T or F
If fire conditions indicate roof ops the aerial may initially be raised to the roof for rapid ascent of the roof and outside vent firefighter.
True. Fire conditions indicate roof ops, Aerial may: 1) be used for roof access 2) vent windows 3) return to roof
T or F
If fire conditions indicate roof ops the aerial may initially be raised to the roof for rapid ascent of the roof and outside vent firefighter.
True. Fire conditions indicate roof ops, Aerial may: 1) be used for roof access 2) vent windows 3) return to roof (5.4.3)
What are the primary means of getting to roof in an H Type?
1) Winged OR Isolated stairs in the SAME building
2) ANY stairway in an adjoining.
BLUFF ANSWER: TRANSVERSE STAIRS. because it says that they are a tremendous asset.
C/R: Priority access to stairs in LRFPMD’s is any stair in an adjoining building THEN enclosed evacuation stairs in the fire building.
As the first arriving Officer at an H Type fire, you immediately recognize at least medium fire conditions. You recognize that 2 lines will be needed to extinguish this fire. What should you do when giving your initial report to the Dispatcher?
Request an additional Engine and Truck beyond the 1st alarm assignment.
As the first arriving Officer at an H Type fire, you immediately recognize at least medium fire conditions. You recognize that 2 lines will be needed to extinguish this fire. What should you do when giving your initial report to the Dispatcher?
Request an additional Engine and Truck beyond the 1st alarm assignment.
(5.5.2)
What if 2 floors are involved or an extensive cockloft fire exists in an H type?
Generally it will be necessary to transmit a 2nd Alarm.
5.5.2
Size-up/Communications. Standing in front and facing the fire building, beginning on your extreme left, wings shall be designated how?
A, B,C,D, ETC
The entire wing from front to rear shall be designated as A, B, etc
(5.6.3)
