Book 29 Truck Manual Flashcards

1
Q

Effective ventilation will accomplish four main objectives:

A

Save lives
Assist in firefighter access
Control horizontal spread of fire
Reduce the possibility of back draft or flash over

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

If the heat, smoke, and fire gases are not released, they will accumulate at the highest point of the structure and begin to bank down and spread laterally. This process is generally known as ______________

A

Mushrooming

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

The key to safe and effective roof ventilation is the knowledge of _____________________

A

Rafter type and rafter direction

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

On roofs sheathed with plywood, the “Head Cut” is made __________ to rafters

A

Perpendicular

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

single cut made through the roof decking, the same width as the chain saw blade

A

Kerf cut

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Since the plywood normally used is 4’ x 8’ in size, a nailing block will usually be found every __ feet.

A

4

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

A ____________is a small triangular piece of roof covering (composition), which is removed from the roof to expose the roof sheathing.Used to determine ?

A

Plug Cut

Sheathing type and composition thickness

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

A _____________ is a light cut of the roof covering, usually composition only. It is used to facilitate the removal of multiple layers of roofing material (composition).

A

Score cut

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

A skim cut is a light cut made with the chain saw, cutting through the __________ and _______________

A

Roof covering and plywood sheathing

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

turbine-style ventilator is about _____ more effective when the turbine is spinning

A

30%

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

In a 45 Degree inspection hole When the saw makes contact with a rafter, roll over the rafter and continue the cut for approximately _______________

A

6 to 10 inches

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

The chain saw operator should cut a minimum of ______ dice cuts before the puller begins removing sheathing.

A

3

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Cut ________ inches inside of the purlins to avoid hitting metal hangers.

A

4 to 6

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

conventional construction will utilize a minimum of ________ (and up to mill/timber construction).

A

2”x 4”s

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

A frame configuration of conventional construction, Rafters are usually ______ inches or larger and are usually ______ to ______ “on-center.”

AND up to ______ For “ steep pitched roofs”

A

2”x 6”

16” to 24”

36”

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Metal gusset plates , The most common are ___ gauge steel plates with prongs that produce _____ inch penetration.

A

18; 3/8”

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Eighteen- gauge “roof truss clips” may be found nailed to the bottom chord spaced ____ to ______ and top plate of interior walls

A

3 to 5 trusses

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Newer roofs use _______ inch plywood as a decking instead of 1 x 4 inch or 1 x 6 inch space sheathing

A

3/8” or 1/2”

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

Bridge truss roofs are found on various types and sizes of commercial buildings primarily constructed during the _______________. Wooden truss members are built from ________inch lumber

A

1930s and 1940s ; 2” x 12 “

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

Straight sheathing was utilized prior to _____, and _______ sheathing was utilized after 1933.

A

1933; diagonal

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

With tied truss arch roofs, Tie rods are usually ______ in diameter, with turnbuckles are used below each arch member to ensure the arches do not push the exterior walls outward

A

5/8”

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

Wooden I Beam , may be constructed from _____ inch plywood or “chip-board” of the same thickness.

A

3/8”

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

In open web construction, The steel tube web members are prefabricated from ________ cold rolled steel tubing with the ends pressed flat into a semicircular shape with a hole punched through the end

A

1” to 2”

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

Open web bar joists, Top and bottom chords are usually made from ____ steel and web supports are solid ______ inch steel bar

A

1/8” ; 5/8”

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Q

In a lamella arch, when exposed to fire , total roof collapse may occur if fire removes more than ____ of the roof structure

A

20%

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
26
Q

steel loses its tensile strength at ______ degrees F,

A

1000

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
27
Q

In pre-33 URM Buildings, Parapet walls around the perimeter of a roof. Parapet walls can be ______above the roof line, and ______ or more if used as a facade on the front of a building.

A

3 feet

5 feet

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
28
Q

After the ________ Earthquake of 1959 . A _______inch concrete bond-beam cap to be laid on top of lowered parapet walls along public ways and exits. -

A

Tehachapi;

4” to 6” inch

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
29
Q

Kings row can be found every ______ rows on buildings

A

4-6

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
30
Q

Long Beach Earthquake of 1933 ordinances:

A
  1. Exterior walls are required to be at least nine inches thick.
  2. Masonry walls are required to be reinforced with steel “rebar.”
  3. All joists and rafters are required to be anchored to exterior walls. This is usually
    accomplished by bolting a “ledger board” to a masonry wall and attaching the joist and
    rafters to the ledger board with metal hangers.
  4. Cement utilized in the mortar.
  5. Diagonal roof sheathing.
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
31
Q

Tehachapi Earthquake of 1959 ordinances :

A
  1. A four to six inch concrete bond-beam cap to be laid on top of lowered parapet walls along
    public ways and exits.
  2. Parapet walls should not be higher than 16 inches including the bond-beam cap, and most
    importantly;
  3. Exterior walls drilled at the roof rafter level and a steel anchor bar/rod installed every four
    feet and attached to the existing roof rafter. This modification rendered the fire cut of the
    roof rafter ineffective. The steel anchor bar/rods are secured to the exterior of the building
    by a plate/nut combination that is known as “rafter tie plates.”
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
32
Q

The Sylmar Earthquake of 1971 ordinances:

A
  1. Add steel bracing from parapet walls to roof structural members.
  2. Metal straps across the width of the roof and attached to opposing walls. The straps are usually 1/3 of the length of the building back from the front and rear walls.
  3. Remove the layers of composition and cover the sheathing with ½ inch plywood. This decking is then recovered with composition.
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
33
Q

Metal straps on pre-33 roofs , can be found _____ from walls

A

3 to 4 feet

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
34
Q

Depending on the particular method that is employed, “curtain” construction can be about ____ faster than conventional construction

A

60%

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
35
Q

Compared to negative pressure ventilation, positive pressure ventilation is approximately ______ as effective at removing contaminants from a building

A

Twice

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
36
Q

Positive pressure is most efficient when the exhaust opening (heat hole, window, door, etc.) is between
__________ to ____________the size of the entrance opening

A

3/4 ; 1 and 3/4

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
37
Q

positive pressure has proven effective AGAINST winds (leeward to windward) of up to ___ mph; efficiency will be reduced accordingly.

A

25

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
38
Q

When Blowers are used in series, the front blower can increase the capacity of blower A by approximately ______

A

10%

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
39
Q

removing screens on windows prior to using these openings for ventilation purposes will increase the efficiency of these openings by at least ____

A

50%

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
40
Q

A single 18” blower is adequate for an average _______sq ft single family
dwelling

A

2000

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
41
Q

Concentrations of carbon monoxide can be found during overhaul from what range?

A

500 ppm - 1200 ppm

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
42
Q

Limitations in the length and diameter of the winding drum restricts this type of elevator to ______ lifts and slow speeds

A

150 foot

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
43
Q

hydraulic elevators use hydraulic power instead of cables and traction sheaves and are generally limited to
_____ story buildings

A

6

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
44
Q

The equipment rooms for hydraulic elevators are normally located at the lower level of a building, but can be at any floor level or ___________feet away from the elevator shaft

A

50 to100

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
45
Q

Larger than passenger elevators, freight elevators can be as large as ________________ and have a carrying capacity of up to ______

A

12’ X 14’

3 tons

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
46
Q

Gib blocks are approximately ___________________ and are installed every ______ across the underside of the door panel.

A

3”W x 1”H x 1/2” Thick

18 inches

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
47
Q

centrifugal force governor is provided on most elevators to guard against overspeeding (when a car travels in excess of _____ of top speed, the governor will activate a safety stop device).

A

20%

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
48
Q

Mains in water lines, normally run beneath a street and parallel to a curb, can vary from __________ in size

A

2 to 72 inches

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
49
Q

Service lines run between a main and a water meter, can vary from ___________

A

1/2 inch to 12 inches

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
50
Q

Water meters are normally directly adjacent to shut-off valves and vary in size from ___________inches (inlet- outlet size).

A

1/2” to 10”

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
51
Q

Compound meters are _____ or larger and are normally found directly adjacent to shut-off valves.

A

4” inches

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
52
Q

Domestic water pressure at normally ____ to ____

A

40 to 80 psi

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
53
Q

A commercial occupancy with MULTIPLE domestic water service will have separate 1 to 2 “ water meters for each individual occupancy , this is referred to as a ______

A

Battery

54
Q

fire hydrant gate valves may require ____to _____ full turns to complete a shutdown

A

18 to 26

55
Q

Natural gas also has an ignition temperature of ______degrees, and has a flammable range between ___________ percent.

A

1100 ; 4 and 14 %

56
Q

Gas is carried by service lines, as medium pressure, which normally does not exceed ____ psi. At the service meter (Meter Set Assembly), the pressure is reduced to a low pressure approximately ______ psi.

A

60; 1/3

57
Q

A ring on the stopcock valve indicates a ___________
A flat washer on the stopcock valve indicates that the service line has a ______________________
A band on the stopcock valve indicates the service line is _____

A

Branch service

plastic pipe inside older metal pipe

Plastic

58
Q

The tang on a Nordstrum valve can only be turned ________ turn

A

1/4

59
Q

Multiple MSAs is called a __________

A

Header

60
Q

The Rescue air cushion is able to absorb and dissipate the energy of impact in less than ______

A

1/6 of a second

61
Q

Rescue Air Cushion
The tear strength of this material is over ______

A

50 lbs psi

62
Q

The Air Rescue Cushion will fully inflate in less than ______

A

60 seconds

63
Q

After landing, have the jumper(s) immediately roll off the cushion and allow ____ seconds for reinflation

A

20

64
Q

Rescue Air Cushion:
Task Force Commander is in charge of :

A
  • Safety Officer for the overall operation.
  • Supervise deployment of air cushion.
  • Controls timing of jumper(s).
  • Ensures that cushion is fully inflated.
  • Liaison with LAPD and/or Incident Commander.
65
Q

Rescue Air Cushion:
Engine Captain is in charge of :

A
  • Assists in moving air cushion to target area.
  • Polices target area for hazards that can damage the air cushion (i.e., sprinkler heads,
    broken glass, etc.)
  • Insures Air Rescue Cushion is fully inflated.
  • Supervises deployment of air cushion pre- deployment area.
  • Coordinates movement of cushion, blowers, and power source.
66
Q

Securely tie the monitor to an object capable of withstanding _______ lbs (400 kg) of force

A

900 lbs

67
Q

The Crossfire Upper Assembly weighs ____pounds and the Stow-A-Way 800 Base weighs ______pounds, including the integrated 4” in-line shutoff valve that weighs 23 pounds Combined, the total weight of the portable monitor is approximately _________ lbs

A

17

43.7

61

68
Q

The automatic drain valve is designed to close automatically when the pressure in the monitor exceeds approximately ______ and open again when the pressure drops to that point.

A

5 psi

69
Q

The stow-a-way 800 base is intended for maximum flows of ____ gpm. Task Force Tips has allowed the LAFD to flow up to ______ gpm with the portable base as long as it is attached to a loop of loaded 4” supply hose.

A

800 ; 1000

70
Q

Tie-down strap is made of nylon webbing and is _______ in length

A

8 feet

71
Q

Portable monitor At an angle of 35 degrees, approximately ____ of the nozzle reaction force is acting sideways on the base.

A

82%

72
Q

Portable monitor base leg Spikes must be sharp to provide resistance to sliding. Replace any spike if the tip diameter exceeds ________

A

1/16 “

73
Q

Make the hose connection to the portable base and extend the hose straight back from the portable base at least ______

A

10 feet

74
Q

If any fire does begin to accelerate or spread, it can easily be controlled by:

A

-extinguishing the fire
- turning the blower 90 degrees from the opening
- reducing the RPM of the blower
- increasing the distance between the overhaul area and the blower
- shutting the blower off

75
Q

When it comes to louvering off a main beam , the puller can louver after the ______ cut

A

Fifth

76
Q

When it comes to dicing , After the ____ dice cut is complete, the puller removes the roof sheathing. Always leave a minimum of ____ un-pulled section between the cutter and the puller

A

Third ; one

77
Q

Post 33 requirements :

A
  • exterior walls to be at least 9 “ thick
  • masonry walls to be reinforced with rebar
  • joists and rafters to be anchored to exterior walls
  • cement utilized in mortar
  • diagonal roof sheathing
78
Q

Post 1959 requirements :

A
  • 4 to 6 inch bond beam cap laid on top of lowered parapet walls along public ways and exits.
  • parapet not higher than 16 “ including the bond beam cap
  • exterior walls to be drilled to roof rafters and a steel bar installed every FOUR feet
79
Q

All MSA’s that are served from the branch main will be identified by a ____ at the stopcock.

A

Ring

80
Q

depending on the type of fire, concentrations of carbon monoxide within the range of 500 parts-per-million (ppm) to 1200 ppm are easily obtainable during overhaul operations. Measurements during actual overhaul operations have indicated that positive pressure can easily reduce carbon monoxide concentrations of 1000 ppm to approximately how many part per million?

A

130 to 220 ppm

81
Q

What must be determined prior to initiating ventilation to enhance safe and effective cutting operations ?

A

Direction of structural members (rafters/joists)

82
Q

What three operations does a size up consists of ?

A

Analyze the situation
Decide on a plan
Put the plan into operation

83
Q

A single lightweight truss structural member can span _______

A

70 feet

84
Q

the ability to accurately estimate the amount of time that a structure can be considered structurally strong is dependent on the following factors:

A
  • type of construction
  • how long the fire has been burning
  • fire intensity
85
Q

What size rafters can be found in sawtooth style roofs?

A

2x8 or larger

86
Q

In order to make this type of cut, you must first know rafter type and rafter direction. Next, you must determine the location of How many rafters ?

A

Center rafter louver ; 3

87
Q

When cutting a center rafter louver, The head cut is started by first cutting _____ from your ladder to locate your first “outside” rafter.

A

Away

88
Q

If two blowers of unequal CFM are utilized in the series position, place the large blower about ___ feet back from the entrance opening and utilize the smaller blower behind the larger blower to cover the entrance opening with pressurized air.

A

Two

89
Q

Pressurization fans in buildings constructed after 1974 are required to have fans that must provide not less than ________ cubic feet while maintaining a positive pressure of not OVER ______ on interior doors.

A

50 cubic feet

25 lbs

90
Q

In the City of Los Angeles, windows in exterior walls that can be used for the removal of heat and smoke are required as follows:
• Pre-1960 -
• Post- 1960 -
• Post- 1974 -

A

Pre 1960 - Openable windows

Post 1960 - Tempered glass on at least two sides of buildings ( corners , 50-foot intervals or less )

Post 1974- Tempered glass on FOUR sides of buildings
( corners, 50-foot intervals or less )

91
Q

Requirement of Smoke Control Systems (Uniform Building Code) in high rise buildings has eliminated the requirement of the installation of tempered glass after what year ?

A

1996

92
Q

Opening a door at the bottom and on roof levels of a stair shaft can create upward air currents of _______ mph

A

3 to 6 mph

93
Q

In high-rise building, when using blowers to ventilate,
Regardless of the size, portable blowers should be placed ____to ____ back from the doorway and angled back at least 5 degrees

A

4 to 6 feet

94
Q

Phase I, “Recall Phase” – Elevators recalled will respond non-stop to the _________ and IGNORE all other call button requests

A

Lobby

95
Q

Phase II, “Override Phase” – Recalled elevators will respond as per Phase I, but in addition can be places in emergency use by firefighters. All automatic elevators having a travel of ________ or more above the lowest grade level may be recalled to the lobby by smoke detectors or by a three-position key operated “Emergency Service” switch in the lobby.

A

70 feet

96
Q

If the building is equipped with SPLIT BANK elevators, do not use an elevator that services the fire floor if a lower bank of elevators reaches within _____ floors of the fire floor.

A

Five

97
Q

Phase II “ Emergency Service”
If multiple floor buttons have been actuated, the car will stop _____________________________. At that time all other selections will be __________. The car doors will remain closed.

A

At the first of the selected floors it reaches

Cancelled

98
Q

Salvage operations in high-rise should begin where ?

A

Where the greatest loss is expected

99
Q

What is the best method for channeling large quantities of water ?

A

Channel into a stairwell

100
Q

Portable monitor, Securely tie the monitor to an object capable of withstanding ___________ of force.

A

900 lbs

101
Q

What is the total weight of the portable monitor ?

A

61 lbs

102
Q

Portable monitor ,The valve is designed to close automatically when the pressure in the monitor exceeds approximately _____ and open again when the pressure drops to that point.

A

5 PSI

103
Q

It is intended for maximum flows of ____ gpm .With the portable monitor , Task Force Tips has allowed the LAFD to flow up to 1000 GPM with the portable base as long as it ______________________

A

800 gpm

Is attached to a loop of a loaded 4” supply hose

104
Q

How long is the nylon strap on the portable monitor ?

A

8 feet

105
Q

What is the angle at the elevation safety stop on the portable monitor ?

A

35˚

106
Q

Portable monitor , At 35˚ approximately how much of the nozzle reaction force is acting sideways on the base ?

A

82%

107
Q

Portable monitor, at what degree is the force acting sideways is equal to the force acting downward on the base ?

A

45˚

108
Q

Portable monitor, when do you replace spikes?

A

Tip diameter exceeds 1/16”

109
Q

Portable monitor , Make the hose connection to the portable base and extend the hose straight back from the portable base at least ______

A

10 feet

110
Q

What is the ONLY nozzle that is to be used with portable monitor ?

A

Master Stream 1000

111
Q

TRUNK lines carry water from a primary source (reservoirs, pumps, etc.) to mains within a
distribution system. Trunk lines can vary from _____________________ in size, and are constructed from iron or concrete.

A

36” to 10 feet

112
Q

The centerpiece or lid normally identifies the type of utility with the word(s) “WATER,” “DWP,” “L.A. Water,” “LA DWP WATER,” or “CITY WATER METER,” and are often marked in what color paint ?

A

BLUE

113
Q

True or False:

A gate valve is a NON- Rising stem valve that has a square nut attachment at the top of the valve stem

A

True

114
Q

What two valves are indicating type valves ?

A

OS&Y and Post Indicator Valve

115
Q

What kind of meter is used to supply water for a closed fire protection system ?

A

Detector check valve with by-pass meter

116
Q

What kind of meter is used to calculate water usage for domestic water services that can use low and high water flows ?

A

Compound meter

117
Q

Detector check valves can vary in size from ?

A

2 to 10 inches

118
Q

Dwellings commonly use how much incoming water pressure ?

A

40 to 80 PSI

119
Q

Service lines run between a main and a water meter, can vary from _______ to ________.

A

1/2” to 12”

120
Q

Leaks from commercial toilets can be eliminated
by removing a cap over the relief valve and using a ________________ to turn the relief. valve screw ________.

A

Slot-headed ; outward

121
Q

Transmission lines bring natural gas into the Southern California area and vary in diameter from ____ to _____ inches.

A

12 to 36 inches

122
Q

MSAs can be categorized as follows:

A
  1. Residential
  2. Industrial
  3. Multiple Gas Meter
123
Q

For faint gas odors inside a structure, always check what as a first action ?

A

Condition of pilot light

124
Q

natural gas emergencies can be divided into 3 categories: inside leaks, outside leaks, and leaks resulting in fires. The most dangerous of these being:

A

Inside Leaks

125
Q

the first priority on scene of a reported gas leak is safety. For faint odors, always check __________ as a first action.

A

Condition of the pilot lights

126
Q

Air Rescue Cushion, there are multiple options to for a power source or to inflate the Air Rescue Cushion. The truck on-board generator, two portable generators, gasoline powered blowers, and a 110 AC power supply. The preferred order of use as available is:

A
  1. On-board generator
  2. 110 AC Power
  3. Two portable generators
  4. Gas powered blowers
127
Q

Air Rescue Cushion, the limiting height from which a person may safely fall into the cushion is determined by:

A

The lower cell

128
Q

Rescue air cushion , The _____ cell is the ______ cell and absorbs most of the energy generated by the impact

A

Upper ; Larger

129
Q

the Air Rescue Cushion will initially fully inflate in less than ___ seconds and reinflate in ___ seconds.

A

60 ; 20

130
Q

the Air Rescue Cushion is inspected:

A

After each use and monthly

131
Q

what size rafters does a Sawtooth Roof typically have?

A

2x8 inches or larger