Ch 5 "H"- Types

Question 1

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?

Answer 1

In the throat.

Question 2

‘H’ types construction began in about what year?

Answer 2

1916 (5.1)

Question 3

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.

Answer 3

True (5.2.1)

Question 4

Steel, when heated, expands and elongates.

What can this do to a wall at a fire?

Answer 4

Can cause it to BULGE, move, or even collapse, if the steel is set within the wall.
(5.2.3)

Question 5

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.

Answer 5

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.

Question 6

What is the most common roof found on H types and how is it fastened to the roof beams?

Answer 6

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)

Question 7

What is an inverted, raised or reversed roof?

Answer 7

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

Question 8

T or F

If there is a heavy body of fire in the cockloft, expect a full collapse of the inverted roof?

Answer 8

False

* expect at least a partial collapse of the inverted roof.
5. 2.4B

Question 9

At what type of fires are transverse stairs a “tremendous asset?

Answer 9

Heavy fire operations on the top floor

5.2.5

Question 10

In these type of stairs, floor landings are recognizable by their limited space and absence of a public hall.

Answer 10

Isolated Stairs

5.2.5

Question 11

_______ are often located in voids behind closets. Our main concern is that they are not fire stopped.
How large are these voids?

Answer 11

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.

Question 12

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?

Answer 12

Locations above and below the fire.

5.2.6

Question 13

If a soil pipe is hot to the touch, what is required?

Answer 13

A top floor examination is required AND notification made to the officer and the IC.
*not an inspection hole.

Question 14

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?

Answer 14

True. TL should be given the front entrance/courtyard.

5.4.2

Question 15

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?

Answer 15

1) Throat
2) Advanced towards front
3) Front windows
(5. 4.2)

Question 16

What fire conditions in an H type indicate roof operations? (4 are named)

Answer 16

1) Top floor fire
2) shaft fire
3) two floors involved
4) heavy fire conditions

Question 17

What fire conditions in an H type indicate roof operations? (4 are named)

Answer 17

1) Top floor fire
2) shaft fire
3) two floors involved
4) heavy fire conditions
(5. 4.3)

Question 18

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.

Answer 18

True.
Fire conditions indicate roof ops, Aerial may:
1) be used for roof access
2) vent windows
3) return to roof

Question 19

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.

Answer 19

True.
Fire conditions indicate roof ops, Aerial may:
1) be used for roof access
2) vent windows
3) return to roof
(5.4.3)

Question 20

What are the primary means of getting to roof in an H Type?

Answer 20

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.

Question 21

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?

Answer 21

Request an additional Engine and Truck beyond the 1st alarm assignment.

Question 22

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?

Answer 22

Request an additional Engine and Truck beyond the 1st alarm assignment.
(5.5.2)

Question 23

What if 2 floors are involved or an extensive cockloft fire exists in an H type?

Answer 23

Generally it will be necessary to transmit a 2nd Alarm.

5.5.2

Question 24

Size-up/Communications. Standing in front and facing the fire building, beginning on your extreme left, wings shall be designated how?

Answer 24

A, B,C,D, ETC
The entire wing from front to rear shall be designated as A, B, etc
(5.6.3)

Question 25

What do fires in channel rails necessitate?

Answer 25

Opening up above and at the top floor ceiling to check for extension in the cockloft.
(5.10.1)

Question 26

5.8.1

Whats the fire rating for a cellar ceiling in an H-type?

Answer 26

two hours, concrete.

Question 27

5.7.2

Where should the second line go for a store for under an H type?

Answer 27

Back up the first line

*When it is OBVIOUS that the first line can control the store fire, advanced to the floor above the fire.

Question 28

5.7.2

Where should the second line go for a store fire under an H type?

Answer 28

Back up the first line

*When it is OBVIOUS that the first line can control the store fire, advanced to the floor above the fire.

Question 29

5.8.2

Where is the first line stretched in a cellar fire at an H type?

Answer 29

By way of the usually numerous exterior approaches to the seat of the fire.

Question 30

5.8.2

Where is the first line stretched in a cellar fire at an H type?

Answer 30

By way of the usually numerous exterior approaches to the seat of the fire.
*consider likelihood of cellar apartments for superintendent and maintenance people.

Question 31

It is good practice, at larger buildings to have___ladders raised to the roof?

Answer 31

2. At different ends.

5. 9.9F

Question 32

True or False?
To determine the extent of a cockloft fire it will be necessary to get all apartments open on the top floor, make openings to find the extent of the fire, and work your way outward to see how far it has extended?

Answer 32

False

* make openings AHEAD of the fire and work your way back to the original fire area.
5. 9.5

Question 33

True or False

Horizontal fire extension may occur through channel irons which may be found along partition walls at ceiling level.

Answer 33

True.
channel irons= horizontal
channel rails= vertical

Question 34

True or False

Horizontal fire extension may occur through channel irons which may be found along partition walls at ceiling level.

Answer 34

True.
channel irons= horizontal
channel rails= vertical
(5.10.2)

Question 35

True or False

Ceiling beams are always laid across the width of the wings in the conventional manner?

Answer 35

False
Some may be laid lengthwise, depending on the iron framework.
(5.10.3)

Question 36

The officer of the first ladder to arrive, if the second ladder company is not on the scene shall order members where? to do what?

Answer 36

To the floor above, directly over the fire.
Feel for hot spots, including the walls of closets.
*REPORT ANY HOT SPOTS TO THE OFFICER AND IC.
(5.10.5)

Question 37

How are hot spots in walls examined?

What must be done if fire is found in them?

Answer 37

• Small holes made for a visual check.
• If fire is found, Notify IC, Immediately go to the top floor and check the termination point of this void for any extension to the cockloft area.
  (5. 10.6)

Question 38

T or False
One apartment in the throat may span the firewall with no fire escape and have two interior exits. One to a stairway in one wing and the other to the adjacent wing. Forcing entry to either door will give easy access to the bedrooms.

Answer 38

False.
Usually one door is nailed shut or obstructed by furniture so as not to be openable. (may not have a doorknob)
(5.11.4)

Question 39

True or False
The law requires the subdivision of these large NFP MD’s into smaller areas. There is no way to determine the location of these subdividing walls from the outside of the building, except in these few cases where they are continued above the roof.

Answer 39

True.

5.11.6

Question 40

How many inspection holes may be cut on the fire side of a trench?

Answer 40

Two or more.

5.9.9

Question 41

A trench may be cut, but should not be opened until what?

Answer 41

There is adequate vent opening directly over the fire.

5.9.9 B

Question 42

H-Types have a much larger roof area then OLT’s and many NLTs. Initially, what size roof cut is recommended in an H-Type?

a) 4x6
b) 8x8
c) 3x6
d) 3x4

Answer 42

c) 3x6’ coffin cut.
bigger roof, does not change cut size.
(5.9.2)