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Week 3 Class > Test 3 > Flashcards

Test 3 Flashcards

1
Q

Class A Foam Concentrate Percentages Vs. Class B

A
  • Class A: 0.1% to 1%

- Class B: 3% to 6%

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2
Q

AFFF

A

-Synthetic, great vapor barrier

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3
Q

Alcohol Resistant Foam

A

-Alcohols and polar solvents will not dissolve foam

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4
Q

Fouroprotein Foam

A

-Made from animal by-products, fast spreading film

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5
Q

Foam Tetrahederon

A

-Mechanical Agitation, Water, Air, Foam Concentrate

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6
Q

Injectors

A

-Add foam concentrate under pressure, AFD uses

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7
Q

Low Exposure Foam

A

-Little entrained air, fog nozzle used

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8
Q

Medium to High

A

-Use aspirating nozzles

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9
Q

Steel Thermal Expansion

A
  • 1” per 10’ at 1,000 degrees F

- 50’ section may elongate 4” at 1,000 degrees F

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10
Q

Spalling

A

-Steam expanding in concrete because of heat that causes sections to break off

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11
Q

Balloon-Frame Construction

A
  • Popular between 1800’s-1940’s
  • Continuous void spaces
  • Prone to 90 degree collapse
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12
Q

Platform-Frame Construction

A
  • Almost all modern wood-frame construction
  • No continuous void spaces
  • Exterior wall studs not continuous
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13
Q

Dead Load

A

-Weight of building

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14
Q

Live Load

A

-Weight of contents

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15
Q

Rafters

A

-Solid wood joists mounted in an inclined position

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16
Q

Truss

A
  • Prefabricated wood/steel structural component composed of smaller components in a triangular configuration
  • Parallel Chord Truss: Flat roof or floors
  • Pitched Chord Truss: Sloping/pitched roof
  • Bowstring Truss: Curved Roof
17
Q

Party Walls

A
  • Shared line between two properties
  • Almost always load bearing
  • Often a firewall
18
Q

NFPA 80

A

-Standard for Fire Doors and Other Opening Protectives

19
Q

NFPA 80 Designations for Fire Doors and Other Protective Openings

A

Class A: Openings in fire walls and in walls that divide a single building into fire areas
Class B: Openings in enclosures of vertical communications through buildings and in 2-hour-rated partitions providing horizontal fire separations
Class C: Openings in walls or partitions between rooms and corridors having a fire-resistance rating of 1 hour or less
Class D: Openings in exterior walls subject to severe fire exposure from outside the building
Class E: Openings in exterior walls subject to moderate or light fire exposure from outside the building

20
Q

Axial Load

A

-Straight Down The Middle

21
Q

Eccentric Load

A

-Down and off to the side

22
Q

Torsional Load

A

-Twisting

23
Q

Parts of Hydrant

A

Barrel, bonnet, stem nut, main valve, Drain holes, operating stem, 2.5 inch connections, 4.5 inch steamer port

24
Q

Fire Enclosure

A

-Fire rated assemblies that enclose interior vertical openings

25
Q

NFPA 80

A

-Standard for Fire Doors and Other Opening Protectives

26
Q

NFPA 10

A
  • Fire Extinguishers
  • Extinguishers < 40 lbs: Mounted up to 5’ from top
  • Extinguishers > 40 lbs: Mounted no more than 3’ from top
  • Bottom of extinguisher at least 4” from floor
27
Q

6 Steps for Extinguishing Fire

A
  • Locate Fire
  • Select Proper Ext.
  • Transport Ext.
  • Activate Ext.
  • Apply Ext. Agent
  • Ensure your personal safety
28
Q

Class D Extinguisher

A
  • Dry Powder
  • Forms solid crust over metal
  • NACL or Graphite Powder
29
Q

NFPA 1142

A

-Standard on Water Supplies for Suburban and Rural Firefighting

30
Q

3-Parts of Municipal Water System

A
  • Water Sources
  • Water Treatment Facilities
  • Water Distribution System
31
Q

Dead-End Water Main

A

-Supply water from one direction

32
Q

Static Pressure

A
  • Pressure in system when water is not moving (potential energy)
  • Measure by placing pressure gauge on hydrant port and opening valve without flowing water
33
Q

Normal Operating Pressure

A
  • Amount of pressure in water distribution system during normal consumption
  • Measured by pressure gauge connected to hydrant during normal use period
34
Q

Residual Pressure

A

-Amount of pressure that remains in system when water is flowing

35
Q

Elevation

A
  • Add 5 PSI per elevated 10 feet

- Subtract 5 PSI for negative 10 feet

36
Q

NFPA 1901 on Class A Pumper

A
  • 750-2,000 gpm a minute in 250 gpm increments
  • Pump from draft at a rate of 100% of rated capacity at 150 psi
  • 70% rated capacity at 200 psi
  • 50% rated capacity at 250 psi

Week 3 Class (8 decks)

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