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Fire Inspection And Code Enforcement > 12 Fire Hazard Recognition > Flashcards

12 Fire Hazard Recognition Flashcards

1
Q

Unsafe behaviors include

A 
Poor housekeeping
Ignoring ignition sources
Open burning
Improper use of electricity
Careless use of flammable liquids
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2
Q

In general code requires I contained fires to not be within how many feet of a house

A

50 ft

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3
Q

Portable heating device generally found on construction sites

A

Salamander

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4
Q

Open burning fires should not be allowed when wind speeds are over

A

5 mph

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5
Q

5 common causes of electrical fires

A 
Worn equipment 
Improper use
Defective or improper installation
Power surges
Static
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6
Q

Movement of electrical current between two electrodes or conductors

A

Arcing

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7
Q

Condition where over using increases resistance and arcing occurs between the Armature and the electric magnetic field. Parking is the elements and ultimately ignition temperature of wire

A

Overloading

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8
Q

Brief spike In voltage usually lasting milliseconds.

A

Power surge

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9
Q

Non flowing electrical charge that can form on almost any surface

A

Static electricity

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10
Q

Common conditions That can generate static charges

A

Gas or steam flowing from an open pipe especially cryogenic.
Pulverize material traveling through shoots.
Slurry loading of materials including explosives
belts in motion.
Fluid running through pipes

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11
Q

Connection of two objects with a metal chain or strap in order to neutralize the static electrical charge between the two

A

Bonding

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12
Q

Reducing the difference in electrical potential between an object and the ground by use of various conductors

A

Grounding

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13
Q

Primary hazard associated with lumber yards and similar occupancies is

A

Hi fuel load

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14
Q

Conditions that allow lumberyard fires to reach serious proportions include the following

A 
Large undivided stacks of materials.
Congested storage conditions. 
Delayed fire detection. 
Inadequate fire protection. 
Combination of class a and class B
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15
Q

In open yard storage of lumber. Stacks must be located on solid ground preferably paved. To ensure stability The height of the lumbar stacked must not exceed what

A

20 feet

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16
Q

Driveways in a lumberyard must be spaced so that a maximum grid system of not more then what size is produced

A

50 x 150’

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17
Q

When certain high hazard commodities such as vehicle tires, plastics, flammable liquids, pallets, are stored over 6 feet in height the store just considered

A

Hi piled storage

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18
Q

Combustibles are considered high pile storage when they are stacked over what feet in height

A

Over 12 feet

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19
Q

Type of storage method or materials are stored on pallets. Some wood, some metal or plastic. Plastic increases to three times the fuel load compared to wood

A

Pallet storage

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20
Q

Consists of a structural framework onto which pallets or other materials are placed

A

Rack storage

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21
Q

Involves stacking boxes, bags, or the products themselves directly on top of each other, which may be done by hand or forklift.

A

Solid piling

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22
Q

Solid piling gives a fire the least chance to develop because it limits

A

Airspace between fuel units

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23
Q

Most critical system in a storage or rack system for an inspector to check and ensure the system is functional is

A

Automatic sprinkler system

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24
Q

An inspector must ensure that aisles are kept clear so that the material left on the floor will not help fire do what

A

Travel to the next rack of storage

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25
Q

Fires in tire storage facilities create toxic oil. This causes long-lasting pollution and what type of contamination

A

Groundwater

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26
Q

Weeds in vegetation must be cleared out to how far from any tire pile

A

Within 50 feet of clear

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27
Q

Discarded pallets can be the greatest hazard because they are broken up and can be exposed to

A

Uncontrolled fires caused by lightning wildland or intentional

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28
Q

Something that may cause and ignition to occur or create conditions that will contribute to the size or spread of a fire once it has ignited

A

Unsafe behaviors

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29
Q

Airspace between pallets is generally how high

A

4 inches

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30
Q

Materials inside of recycling facilities may not be static closer than how far from the ceiling in a building without automatic sprinklers

A

No closer than 2 feet

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31
Q

Material stored inside recycling facilities may not be stacked closer than how far from the ceiling in a building that has automatic sprinklers

A

At least 18 inches below sprinklers

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32
Q

Waste handling operations involve the disposal of

A

Non-recyclable materials

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33
Q

Most common cause of fire at waste handling facilities

A

Open burning and spontaneous combustion

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34
Q

Incineration can reduce the bulk of waste by as much as

A

95%

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35
Q

Fuel fired incinerators must be preheated for how long before use

A

30 minutes

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36
Q

When inspecting an incinerator what must be cleaned on a regular basis and disposed of appropriately

A

Waste material Ash compartment

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37
Q

The largest concern with incinerators is

A

Hazardous waste

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38
Q

In very large HVAC systems mechanical equipment such as the heater itself must be located in a room that is separated from the rest of the building by a fire resistance wall and door rated at a minimum of

A

One hour

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39
Q

True false no storage is allowed inside the HVAC system room

A

True

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40
Q

Greatest concern of fire hazard from HVAC systems

A

Fire hazards from heating appliances

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41
Q

Common causes of fires related to heating appliances include

A

Poorly adjusted or worn fan belts.
Clogged filters.
Lint or debris bear burners.
Poorly maintained motors

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42
Q

Another concern with the operation of HVAC systems

A

Spread of fire through air handling system

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43
Q

Combustion gases passed through tubes that are immersed in circulating water which is converted to steam. Type of boiler

A

Fire tube boiler

44
Q

Type of boiler and is a steam generating unit in which steam and water circulate through a series of small drums and tubes. Combustion gases Passover outside of the elements

A

Watertube boiler

45
Q

Almost all large boilers are of what type

A

Watertube boiler

46
Q

Most common type of central heating appliance used today

A

Warm air furnaces

47
Q

Type of furnace the operates primarily by the circulation of air without use of fans. Cold air settles into basement heated air rises

A

Gravity furnaces

48
Q

Automatic controls are provided to turn off the furnace when the temperature was in the ductwork or Plenum reaches

A

250°F

49
Q

Fire proms with warm air furnaces are principally do to

A

Inadequate clearances.
Lack of proper limit controls.
Heat exchanger burnouts
improper installation or maintenance

50
Q

Self-contained devices that are automatically controlled. This heater may be mounted on the floor or suspended from a wall or ceiling. Found in manufacturing or storage or gymnasiums

A

Unit heaters

51
Q

Type of heater that uses the circulation of radiant heat. Self-contained units designed to heat the immediate surrounding area

A

Room heaters

52
Q

Wood and coal stove, electric and gas logs, electric baseboard and open front heaters are considered what type of heater

A

Room heaters

53
Q

Class a refrigerants are not considered toxic when a person is exposed to concentrations of less than

A

400 ppm by volume

54
Q

Class B refrigerants are toxic when a person is exposed to concentrations less than

A

400 ppm by volume

55
Q

Air moving systems were no cooling or heating of the air occurs

A

Ventilating systems

56
Q

Three types of filters used in HVAC systems

A

Fibrous media unit filters.
Renewable media filters.
Electronic air cleaners

57
Q

Primary fire hazard associated with electronic air filters is

A

Electrical malfunction igniting particulate matter inside

58
Q

Which class of HVAC system will burn moderately when clean and emit moderate quantities of smoke

A

Class two filter.

Class one filter won’t contribute fuel to a fire

59
Q

Unless specially designed for lesser clearance, cooking equipment must have a clearance of how much for many combustible material

A

At least 18 inches

60
Q

Dry chemical cylinders for cooking systems that way less than 150 pounds must be Hydro tested every

A

12 Years

61
Q

Fusible links in cooking extinguishing systems must be replaced at least

A

Annually

62
Q

Solid fuel systems like woodstoves must be installed on noncombustible floors and extend how far from the appliance in every direction

A

3 feet in all directions

63
Q

Class of oven or furnace that operates in approximately atmospheric pressure with explosion or fire hazard potential one flammable volatiles are processed or heated

A

Class a

64
Q

Type of oven or furnace that operates at approximately atmosphere condition or no flammable volatiles or combustible materials are heated

A

Class B

65
Q

Type of oven or furnace with potential hazards due to flammable material used. Include a special atmosphere supply system with integral quench furnace and molten salt bath furnace

A

Class C

66
Q

Type of oven or furnace that operates at temperatures from above Ambien to over 5000°F. Pressure is normally below atmosphere

A

Class D

67
Q

The most common type of powered industrial truck is

A

Forklift

68
Q

Most common type of forklift or industrial truck fuel

A

Electric battery and LPG

69
Q

Chargers for electric battery operated units should be kept at least how far from combustible materials

A

5 feet

70
Q

Must be a minimum of what distance between stake lines for tents

A

10 feet

71
Q

Most common fuel gas used for metal cutting or thermal cutting is

A

Acetylene gas

72
Q

The primary fire hazard associated with oxygen fuel gas equipment is

A

The storage of the oxygen and fuel gases in cylinders

73
Q

Before welding or cutting operations can begin, when operating in an area where combustible materials such as paper clippings wood shavings etc. are on the floor an area with a radius of what size must be cleared

A

35 foot clearance radius

74
Q

Following a welding or thermal cutting operation a fire watch must be maintained for at least how long after the job is completed

A

30 minutes

75
Q

A firewatch must monitor adjacent areas to welding and thermal cutting in what circumstance

A

When walls or floor openings are within 35 feet

76
Q

Another name for the type of work that involves welding thermal cutting etc.

A

Hot work

77
Q

Process the most involves using an air spray gun that atomizes fluid as it is sprayed onto product

A

Fluid coating

78
Q

Paint booths should be bonded and grounded so that

A

Static spark does not ignite vapors

79
Q

Process where powder is suspended in air and then electrostatically charged. Product is then baked to cure coating

A

Powder coating

80
Q

Major cause of fire in powder coating process

A

Static accumulation

81
Q

Dip tanks and reservoirs should be contained with what fire rating construction

A

One hour container

82
Q

Quenching oil should never be allowed to be with and what degrees of its flashpoint

A

50°

83
Q

Normal flash point of various heated quenching mediums is

A

500°F

84
Q

For heated quenching operations temperature ranges from

A

200-400°F

85
Q

So that flammable liquids will not flow to lower levels quenching tanks should be located where

A

Grade level

86
Q

Freeboard, distance from liquid surface to top of tank wonderful, should never be less than what height

A

6 inches

87
Q

Tanks that contain how many gallons of quench oil or more should have drains to protect overflow

A

150 gallons or more

88
Q

Any tank over how many gallons must have a bottom drain that opens automatically or manually in the event of fire

A

Any tank over 500 gallons

89
Q

The floor or roof above a dry cleaning room must have a fire resistance rating of not less than

A

One hour

90
Q

Dry cleaning room must have at least how many doors as a means of egress located at opposite ends of the room

A

Two doors at least

91
Q

Dry cleaning room must be separated from the rest of the building by a partition with what fire resistance rating

A

Two hour fire resistance rating

92
Q

At least two approved portable fire extinguishers must be provided near the doors and must be rated at

A

2-A:10-BC

93
Q

Class I solvents for dry-cleaning have a flashpoint below what temperature

A

100°F

94
Q

Combustible dust group, metal dust including aluminum magnesium and commercial alloys, hazardous in the use of electrical equipment

A

Group E

95
Q

Combustible dust group of volatile dusts containing more than 8% carbonaceous material, includes cole carbon black charcoal and coke dusts

A

Group F

96
Q

Combustible dust group of dust atmosphere is produced in flour grain wood flower plastic processing

A

Group G

97
Q

Class to building combustible dust is an air hundred normal operating conditions in sufficient quantities to produce explosion. What division is it

A

Division I

98
Q

class two building combustible dust produced due to abnormal operation and is present in quantities to produce explosion. What division

A

Division II

99
Q

Means of dust control include providing enclosures for conveyor belts or reducing speed the grain movesmoves through facility

A

Passive dust control

100
Q

Dust control that usually mechanical collection system capable of collecting 99.5% of dust and storing it in bins outside of facility

A

Active dust control

101
Q

Subterranean tunnels and passageways of what length or longer must have two means of egress as remote from each other as possible in grain handling facilities

A

50 feet or longer

102
Q

Most common place for fires to occur in woodworking operations is at or in

A

The dust hogger , catches splinters chips and saw dust

103
Q

Asphalt and tar kettles must never be operated where

A

Inside a building or on its roof

104
Q

A portable fire extinguisher rated at 40-BC must be located within how much of a candle for asphalt Or tar

A

25 feet

105
Q

If a tar kettle is being used for roofing additional extinguisher of what size must be available

A

3-A:40-BC

106
Q

Minimum size required portable fire extinguisher for clean rooms are

A

2 A-40 BC

Fire Inspection And Code Enforcement (13 decks)

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