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Flashcards in Private Dwellings Deck (83)
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1

Regarding the potential for collapse in PD' s, it would be incorrect to state? (1.6, 1.7)
A. Early collapse is NOT a primary consideration at traditional PD's
B. In traditional PD's, one hour is amount of time before collapse is estimated to occur
C. In traditional PD' s, when there is no ceiling to protect structural components, 30 minutes is amount of time before collapse is estimated to occur
D. When fire extends to the structural components in a PD constructed with lightweight materials, collapse may occur suddenly, with little or no warning signs, within 5-10 minutes

C

 

However, when there is no ceiling to provide protection, therefore exposing structural components, failure can occur within 20 minutes

2

In any building construction, the critical area subject to failure as a result of fire is the point of connection. (1.5)

A. Agree or D. Disagree?

A

3

Collapse is ______ the primary consideration in buildings constructed with lightweight materials?
(1.7)

A. Always B. Generally C. Often D. Usually

A. Always

4

An area in a building that is unsupported by columns with spans greater than __ feet is generally an indication that lightweight construction is present? (1 .8)
 

A. 15 B. 20 C.25 D. 30

C.25

5

Which of the following lightweight material(s), when used as beams to support floors, would create what is known as a truss loft?
A. Laminated wooden I -beams
B. Lightweight parallel chord wood truss
C. Metal C-joists
D. Composite Truss

B. Lightweight parallel chord wood truss

D. Composite Truss

6

How many of the following construction feature(s) of lightweight construction are correctly stated? (2.2.5A, 2.2.5 C, 3.2.1, 3.4.1)
1. A lightweight wood truss peaked roof exposed to sufficient fire can be expected to collapse as one complete unit into the structure
2. Plywood burns rapidly and fails at a fast rate, allowing fires that extend to the cockloft/attic area to quickly vent thru the roof
3. The weakest point of lightweight parallel wood chord truss is the sheet metal gusset plates
4. Metal C-joists must be braced with strapping to prevent them from twisting

A. 1 B. 2 C. 3 D. 4

D. 4

7

You are the officer of an Engine Company that is inspecting a CDA building reportedly using lightweight construction between its ceilings and floors, and its top floor ceiling and roof above. You should know that unless this building is equipped with an automatic sprinkler system, these areas with lightweight construction are required to be divided into equal areas of ___ square feet or less? (2.2.6A)

A.400 B. 500 C. 750 D. 1000

B. 500

8

First alarm units arrive on the scene of a fire in a 2-story lightweight constructed building. There is a heavy fire and smoke condition showing on the first floor. The second ladder is on the floor above and finds a very minor smoke condition. In this situation, the second ladder company
officer should suspect what kind of flooring? (2.2.4,3.4.3)
A. Oriental Strand Board flooring
B. Plywood flooring
C. Vinyl flooring
D. A concrete or gypsum floor poured over corrugated steel

D.

A concrete or gypsum floor poured over corrugated steel

9

Units arrive on scene of a fire on the second floor of a newer type PD where lightweight construction is suspected. In this situation, it would be incorrect for them to believe that?
(4.1.1---4.1.4,4.3.1)
A. The IC shall ensure that all members on the scene are made aware of the presence of lightweight construction
B. The borough dispatcher shall be advised in preliminary and progress reports of the presence of lightweight construction
C. As soon as conditions permit, an immediate inspection of the ceiling voids should be conducted. In this case-an inspection hole should be made immediately upon entering the first floor.
D. If fire enters concealed spaces with lightweight construction, all members shall be directed not to enter the fire area or areas above until the IC determines the risk of a planned coordinated attack-especially when C-Joists and Wooden I-Beams are involved

D

especially when Open Web Trusses are involved

10

Units respond to the scene of a fire reported in a 2-story PD with lightweight construction that is still under construction. In this situation, an interior attack is permissible? (4.1.7)
A. Only if the fire is minor
B. Only if the fire is confined to a small area
C. Only if the fire is minor or confined to a small area
D. Only if the fire is minor or medium or confined to a small area
E. Under no circumstances should an interior attack be conducted in an unoccupied PD under construction with lightweight construction

C. Only if the fire is minor or confined to a small area
 

11

Units arrive on the scene of a fire in a 3-story, new type PD and observe during sizeup the presence of smoke pushing at the 2nd floor line on the outside of the building. In this situation, they should suspect? (4.1.12)
A. Laminated wood I-beams
B. Open web truss
C. Metal C-joists
D. Ordinary construction

B. Open web truss

12

You are the officer of the first arriving engine at a scene of a fire in a 2-1/2 story PD with CIDS indicating lightweight construction. Your sizeup on arrival finds a medium fire condition on the first floor of the structure and there are no window bars on the building. In this situation, after transmitting the 10-75 and giving the sizeup, you would be most correct to request an additional? (4.2.1)
A. Engine
B. Ladder
C. Engine and Ladder
D. Ladder and BC

A. Engine

13

Regarding engine company operations at fires in PD's with lightweight construction, it would be incorrect to state that? (4.1.13,4.2.6)
A. Nozzle FF's should use the leg forward method
B. A backup hoseline must be positioned for the first hoseline.
C. The second hoseline stretched must be stretched as the backup line
D. Any floor or roof support system that has been heavily damaged due to fire should be hydraulically overhauled from a safe area using the reach of the stream

C

A 2nd hoseline must be positioned to back up the 1st line.  When the 2nd line is needed to address a potential life hazard or is directed by the IC to a location remote from the 1st hoseline, a 3rd hoseline must be positioned as a back-up line.

14

Indiscriminate removal of plasterboard on ceilings and walls during the overhaul stage can cause instability in PD's of lightweight construction, particularly in buildings with? (4.3.5)
A. Laminated wood I-beams
B. Open web truss
C. Metal C-joists
D. Ordinary construction

C. Metal C-joists

15

In which of the following situation( s) should a member be allowed to cut the roof of either a peaked or flat roof PD with lightweight construction? (4.3.8)


A. Inspection holes only at a top floor fire
B. Top floor fire where there is clear indication that the fire has not entered the cockloft
C. Fire on a floor other than the top floor where there is clear indication that the fire has not entered the cockloft
D. Only from the safety of a TL, when necessary for operations
E. Under no circumstances shall the roof be cut in any peaked or flat roof building of lightweight construction

E. Under no circumstances shall the roof be cut in any peaked or flat roof building of lightweight construction

16

A Battalion Chief conducting drill on Ladder company operations at PD fires suspected to have lightweight construction made the following comments: (4.3.1,4.3.2,4.3.10, 4.3.11 , 4.4.2)
1. If fire is located on the cellar or first floor preventing visual identification of the type of construction, an available unit can be assigned to make an examination, preferably in a similar detached structure
2. If any room was involved in fire, immediately enter the room to make one or more inspection holes in the ceiling to check for extension
3. If any room was involved in fire, ladder officers shall insure a hose line is in position before any additional openings are made besides inspection holes
4. When not already completed by the first ladder, the second ladder operating on the floor(s) above shall make inspection holes to determine the type of construction and the extent of fire in any concealed areas

The BC was correct in how many statements?
A. 1 B.2 C. 3 D. 4

B.2

3. If any room was involved in fire, ladder officers shall insure a hose line is in position before any additional openings are made besides inspection holes
4. When not already completed by the first ladder, the second ladder operating on the floor(s) above shall make inspection holes to determine the type of construction and the extent of fire in any concealed areas
 

17

You are the officer of Ladder 99 that has just arrived at a top floor fire in a 2-story PD with lightweight construction. Engine 100 stretched a line to the second floor and knocked down the fire and reports a contents fire only. On your arrival on the top floor you determine that it is clearly a contents fire as well, however there is a significant smoke condition. In this situation, it would be most correct for you to order your RoofFF? (4.3.10)
A. To not go to the roof under any circumstances-because the fire is already knocked down
B. To not go to the roof under any circumstances-regardless of the status of the fire
C. To go to the roof, but only to check the rear and sides, vent top floor windows and skylights, and inspect HVAC duct vents for unusual heat. Then, immediately leave the roof
D. To go to the roof, to check the rear and sides, vent top floor windows and skylights, and inspect HVAC duct vents for unusual heat. Then, contact the Ladder Officer or IC as to whether they require you to remain on the roof for other duties

C. To go to the roof, but only to check the rear and sides, vent top floor windows and skylights, and inspect HVAC duct vents for unusual heat. Then, immediately leave the roof

18

Regarding the operation of units above the fire in a lightweight constructed PD, it would be correct to state?
(4.4.2, 4.5.1 , 4.5.2)
A. In all cases, life concerns will dictate the feasibility of floor above operations
B. A suspected or known life hazard must be addressed within the limits of safety
C. If lightweight components are exposed to fire or high heat all members should be advised by the IC not to enter the fire area or the areas directly above
D. Searches must be conducted with consideration that interior operational time will be of limited duration. The only exception is when immediate action must be taken to address a suspected or known life hazard

C. If lightweight components are exposed to fire or high heat all members should be advised by the IC not to enter the fire area or the areas directly above

19

KEY size-up indicators for the IC at a fire in a PD with lightweight construction include?
(4.6.3)
A. Extent of the fire
B. Location of the fire
C. Height
D. Area
E. Auxiliary appliances
F. Weather
G. Volume of smoke and fire
H. Smoke action

A. Extent of the fire
B. Location of the fire

G. Volume of smoke and fire
H. Smoke action

20

If the sizeup of a PD fire determines that the fire involves only the contents and has not extended to the structural components, then standard tactics for PD fires are generally appropriate.
(4.6.4)

A. Agree or D. Disagree?

A. Agree

21

______% of all fire deaths occur in private dwellings.

Seventy percent

22

Straight Line Colonial ___ to ___ stories and __'x__'. ______ ______ construction is commonly found

2½ to 3 stories and 20'x40'. Balloon frame construction is commonly found

23

Cape Style Houses. dormers (The easiest exterior access to these rooms, via portable ladders, is through windows that are found on the exposure __ & __ sides of the house

exposure 2 & 4 sides of the house

24

Queen Anne ___ to ___ stories in height, __ to __ feet in
width and __ to __ feet in depth. Large open stairs in the living room connect the 1 st and 2nd floors. A narrow rear or side stair connects the 1st, 2nd and 3rd floors, or straight to 3rd

 

______ ______ construction is most common and early
attempts at built-in fire stopping are negated by poor workmanship, open holes for house service lines, etc.

Queen Anne 2½ to 3½ stories in height, 25 to 30 feet in
width and 30 to 50 feet in depth.

 

 

 

Balloon Frame

25

Decorative peak

The absence of a window in this peak may be an indication of a ____ roof.

Flat Roof

26

Flat Roof Private Dwellings

 

Many attached dwellings were built with firewalls that cannot be relied on

27

New construction
Many newly constructed dwellings are incorporating ______ _ _____, ____________ and ____________ ____________ ____________ into their construction.

New construction
Many newly constructed dwellings are incorporating wooden I beams, metal "C" joists and lightweight wooden trusses into their construction.

28

Possible indications of attic occupancy may be:

 

  1. attic area with a dormer
  2. adequate height (approximately seven feet in attic),

29

__________ __________ construction limits fire extension.

Platform frame construction limits fire extension.

30

Windows with sills that are approximately chest high may require a drop of ______ feet to floor level

Windows with sills that are approximately chest high may require a drop of 5-6 feet to floor level