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From Flashcardlet > Multiple Dwellings ch 1-5 > Flashcards

Multiple Dwellings ch 1-5 Flashcards

0
Q

A fire partition has a fire resistive rating of ____ hours

A

At least 3 hours

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0
Q

T or F

The 2nd arriving OV secured a 2nd fireman service elevator and worked in conjunction with the first arriving OV

A

True. 6.3.2 B

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0
Q

A fire wall has a fire resistive rating of ____ hours

A

At least 4 hours

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1
Q

Who picks the attack stairway at a high rise MD?

A

1st arriving ladder after consulting with the first engine officer

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2
Q

Who brings the KO curtain to the floor above ?

A

1st and 3rd due roof

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2
Q

Describe OLTs built before 4/12/01

A

3-7 stories, 20-25 feet wide
-50-85 feet deep
-2 means of egress from each apt ie interior stairs and fire escape
-2-4 apts per floor
May find steel steel H columns and steel I beams in RENOVATED OLTS
In 1934 , most OLTS were required to fire retard the stairway enclosure

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3
Q

Describe NLTS built after 4/12/01 and before 1916?

A
  • Generally 6 or 7 stories high
  • 35 to 50 feet wide, 85’ in depth
  • 5- 6 apts per floor
  • Cellar ceiling is fireproof
  • entrance via exterior
  • all interior walls and furred partitions are fire stopped at each story
  • steel I beams found, generally supported by masonry walls
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4
Q

Newer types of NLTS were built between 1916-1929. To avoid being required to be built with fireproof construction, the floor areas were broken up into units of _____ square feet or less

A

2500
Note: newer NLTS ( H types) can be as large as 150’ x 200’
- entrance to bsmt is by side or rear door at that level via exterior stair from the first floor OR through a passageway in the front of the bldg

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5
Q

How high to the fireproof partitions go in newer NLTS built between 1916-1929?

A

Only as high as the ceiling of the top floor

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6
Q

Between 1930 and 1940, firewalls were required to be carried to the?

A

Underside of the roof boards

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7
Q

After 1940 ie 1941 and thereafter, firewalls were required to go to?

A

The top of the roof boards

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8
Q

After 4/18/1929, class “A” apartment houses were required to be enclosed by fire walls _______ square feet or less

A

3000

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9
Q

A hoseline on the roof of a NFP md should be used to do what 3 things?

A
  • Prevent fire from extending past the trench
  • protect exposures
  • extinguish fire that can’t be reached from below such as fire in the cornice
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10
Q

The primary use of first Hoseline at a NFP MD is to?

A

Safeguard the stairs so that it can be used by escaping occupants

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11
Q

No materials shall be thrown onto roofs of setbacks or into _____ shafts

A

Narrow

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12
Q

If possible when cutting roof at a NFP MD, the ____ side of the opening should be at ______ angles to the roof beams in order to provide venting of as many bays as possible

A

If possible, the long side of the opening should be at right angles to the roof beams in order to provide venting of as many bays as possible

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13
Q

Fire on two floors in an OLT or NLT, the IC shall?

A

Special call an engine and truck

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14
Q

If progress is not made on at least one floor in a short period of time, the IC shall?

A

Transmit 2nd alarm

MDs 3.4.4

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15
Q

Store fires in OLTs according to the MD bulletin states that a 2 1/2 inch line SHOULD be stretched for _______ volume fires and a 2nd line stretched to the entrance hallway

A

LARGE

Note: when assured that the 2nd line is not needed on the first floor it may be advanced to the floor above the fire

16
Q

T or F. MDs 4.2.2 store fires
A charged Hoseline MUST be ready before the store is ventilated. No plate glass windows are to be broken without a charged handline being ready

A

True

17
Q

T or F
For fires in rooms in the vicinity of a shaft at a MD, after the fire in the room has been controlled, the line should be operated up the shaft to extinguish fire and cool the shaft

A

True

18
Q

Collapse of floors at OLTS is usually not a problem according to the MD bulletin because of the short span of floor beams, _____ feet

A

25 feet

19
Q

Buildings in the rear of OLTs are usually not seriously exposed because they are anywhere from ____ to _____ feet or more away from the OLT

A

10 to 25 feet or more away from the OLT

20
Q

T or F.
OLTs that were converted to SROs require sprinklers in each room and in the stairway. The sprinkler is city main fed and cannot be supplied by the fire department

A

True
Note: these sros also require an interior alarm system to warn the occupants of fire. Exit lights and signs must be provided

21
Q

Who must the roof ff inform of party wall balconies being in the rear of a MD?

A

His officer and the IC

22
Q

In class “A” NFP MDs built after 4/12/01 to the present, the most common roof has the top floor ceiling _______ feet below the main roof beams

A

Several
Note: the roof boards are fastened directly to the top of the roof beams This provides for a sturdy roof
5.1.1 D 2

23
Q

H types

If the roof man notices the waste pipes are hot to the touch, who must he notify?

A

His officer and the IC
Note: a top floor examination is required
Note: He doesn’t use an ungloved hand when feeling for heat

24
Q

What is the primary means of getting to the roof in an H type?

A

Winged or isolated stairs in the same building or the adjoining building if feasible
Mds 5.2.2

25
Q

The IC should call for ______ for a medium fire at an H type when it is anticipated that 2 lines will be required

A

Extra engine and truck

26
Q

If two floors are involved at an H type ?

A

It will be generally necessary to transmit a 2nd alarm

Note: 2nd alarm for extensive cockloft fire

27
Q

According to the picture in figure 6 in MDs the dimensions of H types can be as large as ___ x _____ feet

A

60x 340 feet, 6 stories, 22 apts per floor

28
Q

At store fires in MDs, where does the 2nd line operate?

A

Backs up the first line. When it is OBVIOUS that first line can CONTROL the store fire, the 2nd line should be advanced to the floor above
5.3.1 B 2

29
Q

Cellar fires in class A NFP MDs built after 1901 have a ____ hour fire resistance for the concrete cellar ceiling

A

2

30
Q

In an H type, how does first line advance to a cellar fire?

A

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

31
Q

H type cellar fire, roof man goes to roof and does what?

A

Vent and examination . He also checks cockloft for possible extension of fire through vertical voids

32
Q

Will a roof sector supv be assigned to the roof of an H type for a top floor fire?

A

Yes. IC will designate a co officer as roof supv until a chief can be assigned. Once a roof sector supv is assigned, all communications between roof and IC go through roof supv.

33
Q

When trenching at an H type, how many inspection holes shall be made?

A

Two or more on the fire side of the trench. When fire reaches the inspection holes, the precut trench is pulled

34
Q

The trench should be cut about _____ feet from the initial vent hole

A

20

35
Q

Can a line be operated into a trench?

A

A line may be operated into the trench in a brief sweeping side to side motion to prevent fire from extending

36
Q

T or F
At times it may be necessary to assign engine co’s OR individual engine FFs to pull ceilings when fire in cockloft at an H type

A

True

37
Q

Some cockloft are as much as ____ feet deep in H type buildings

A

4

Page 33

38
Q

The most probable point for vertical fire extension at an H type will be?

A

Vertical steel channels ( in buildings that have steel frame construction)
5.3.4

39
Q

Fire in channel rails in H types necessitates opening up where?

A

Opening up above and at the top floor ceiling for extension into the cockloft

40
Q

T or F
If heavy fire conditions exist on a floor in an H type, the area and the base of any shafts below the fire must be examined for extension

A

True

41
Q

When transmitting 2nd or greater alarms for cockloft fires in large H type buildings, the IC should?

A

CONSIDER calling additional BC’s to cover critical sectors and/or exposures . Eg top floor sector supv, roof sector supv

From Flashcardlet (101 decks)

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