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ff 1 > ch 17 test quiz > Flashcards

ch 17 test quiz Flashcards

1
Q

Defensive firefighting operations are conducted from which location?

A

Exterior

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2
Q

Which statement is correct about simultaneous offensive and defensive operations at the same building?

A

It is dangerous and should not be done.

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3
Q

What does the C stand for in the acronym SLICE-RS?

A

Cool the space from the safest location.

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4
Q

Under which circumstances is it considered safe for one fire fighter to safely handle a large handline?

A

When the handline is stationary and well anchored

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5
Q

Application of water to the base of a fire is a(n) __________ attack.

A

direct

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6
Q

What is the intention of an indirect fire attack?

A

Cool hot gases in the fire compartment

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7
Q

What are the first two types of fire suppression operations?

A

Offensive and defensive

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8
Q

Exposure protection during a defensive operation takes __________ priority.

A

high

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9
Q

What is an effect of a hose stream that consists of droplets with a large surface area?

A

Heat absorption is enhanced.

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10
Q

What is the term for the movement of heat and smoke in a structure from an area of higher pressure near the fire to an area of lower pressure?

A

Flow path

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11
Q

Which statement about ventilating a basement fire is correct?

A

Ventilation may be difficult due to the limited number of outside openings.

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12
Q

Where should additional equipment be staged on a high-rise fire?

A

One or two floors below the fire

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13
Q

In a direct attack, water should be applied until:

A

all visible flame is extinguished.

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14
Q

Defensive firefighting operations are conducted from which location?

A

Exterior

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15
Q

Which firefighting attack, if successful, will result in the least amount of property damage?

A

Offensive

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16
Q

Which statement is correct about simultaneous offensive and defensive operations at the same building?

A

It is dangerous and should not be done.

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17
Q

What does the C stand for in the acronym SLICE-RS?

A

Cool the space from the safest location

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18
Q

What it the maximum diameter of a small handline?

A

2” (50 mm)

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19
Q

Which is the minimum flow from a large handline?

A

250 gpm

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20
Q

Under which circumstances is it considered safe for one fire fighter to safely handle a large handline?

A

When the handline is stationary and well anchored

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21
Q

Most master stream devices flow:

A

350 - 1500 gpm

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22
Q

Which is a characteristic of a fog stream?

A

It creates water droplets with a large surface area.

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23
Q

Which is an advantage of a straight stream over a fog stream?

A

Longer reach

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24
Q

Which type of stream is most likely to disrupt thermal balance?

A

Fog

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25
Q

A combination fire attack begins with:

A

an indirect attack

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26
Q

Application of water to the base of a fire is a(n) __________ attack.

A

direct

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27
Q

When is an indirect attack indicated?

A

When flashover is likely

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28
Q

What is the intention of an indirect fire attack?

A

Cool hot gases in the fire compartment

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29
Q

During an indirect attack, you should flow water until the:

A

room begins to darken

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30
Q

The use of master streams on a building should be prohibited when:

A

crews are working inside the building

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31
Q

A master stream device that is permanently mounted on an engine and plumbed directly into the pump is a:

A

deck gun

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32
Q

Why is it necessary to limit the lowest stream angle of a portable monitor?

A

To prevent instability of the monitor

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33
Q

What are the first two types of fire suppression operations?

A

Offensive and defensive

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34
Q

Fire fighters getting close enough to apply extinguishing agent directly on the fire is the objective of which type of operation?

A

Offensive

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35
Q

In which type of operation are large handlines and master streams more often used?

A

Defensive

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36
Q

Exposure protection during a defensive operation takes __________ priority.

A

high

37
Q

Which term refers to two crews operating hose lines against each other?

A

Opposing handlines

38
Q

In modern residential construction, fresh air enters the attic space through which vent?

A

Soffit

39
Q

What is the minimum flow from a master stream device?

A

350 gpm

40
Q

Master stream devices are most commonly used for which operation?

A

Defensive

41
Q

What is an effect of a hose stream that consists of droplets with a large surface area?

A

Heat absorption is enhanced.

42
Q

Operations are conducted from inside the fire building in which type of attack?

A

Offensive

43
Q

Which statement about hydraulic ventilation is correct?

A

A fog stream is required

44
Q

From a doorway, a crew directs a hose stream at the ceiling of a burning room. This is a(n) __________ attack.

A

indirect

45
Q

Which statement most accurately describes a transitional attack?

A

A brief offensive exterior attack followed by interior attack

46
Q

What is the target of the hose stream in a direct attack?

A

The base of the fire

47
Q

What is the target of the hose stream in an indirect attack?

A

The ceiling of the fire room

48
Q

What does the E stand for in the acronym SLICE-RS?

A

Extinguish the fire

49
Q

What is the term for the movement of heat and smoke in a structure from an area of higher pressure near the fire to an area of lower pressure?

A

Flow path

50
Q

Flow path

A

Turret pipe

51
Q

An elevated master stream device mounted at the tip of an aerial ladder is a:

A

ladder pipe

52
Q

Which fire-extinguishing agent would be the best choice for use on delicate electronic equipment?

A

Carbon dioxide

53
Q

Preventing the spread of fire is the primary objective of which fire attack?

A

Defensive

54
Q

Which statement about an offensive exterior attack is correct?

A

Its effects are short-lived.

55
Q

Attic fires should generally be treated as:

A

ventilation-limited

56
Q

Which type of attack is used when the main objective is to protect exposures?

A

Defensive

57
Q

What is the minimum number of fire fighters needed to advance and maneuver a 2½” (65-mm) handline inside a building?

A

2

58
Q

A portable monitor is an example of:

A

master stream devices

59
Q

Peeling or bubbling paint is an indicator of:

A

concealed fire

60
Q

Which statement about ventilating a basement fire is correct?

A

Ventilation may be difficult due to the limited number of outside openings.

61
Q

Where should additional equipment be staged on a high-rise fire?

A

One or two floors below the fire

62
Q

If there is no life-safety hazard, which type of fire attack should be used in a building under construction that has no doors or windows?

A

Defensive

63
Q

Which hazard is of particular concern with fires involving stacked or piled material?

A

Collapse of the stack

64
Q

What is the best item to aid in the extinguishment of smoldering fires in tightly packed combustible materials?

A

Class A foam

65
Q

In a direct attack, water should be applied until:

A

all visible flame is extinguished

66
Q

When conducting a transitional attack on an attic fire, streams should be directed through the:

A

soffit vents

67
Q

Which hazard presents the greatest risk for a fire in a modern vehicle?

A

Components containing pressurized gas

68
Q

What is the minimum size hose line for a vehicle fire?

A

1½”

69
Q

How should fire fighters approach a vehicle fire?

A

45-degree angle from the side

70
Q

Which hazardous material is commonly found in vehicle batteries?

A

Sulfuric acid

71
Q

A vehicle fueled by compressed gas is fully involved in fire. What should be used to fight the fire?

A

Unmanned master stream

72
Q

Which special hazard is unique to hybrid vehicles?

A

High-voltage components

73
Q

Which is the preferred method to overhaul a trash bin fire?

A

Use Class A foam to saturate all the fuel

74
Q

When operating near the suspected area of origin, fire fighters should be especially careful to:

A

disturb the area as little as possible

75
Q

Which is the rate at which heat is transferred from one surface to another?

A

Heat flux

76
Q

Application of a fire stream to solar panels should be done from a distance of no less than:

A

20 ft

77
Q

Which type of stream may be safe for use on solar panels?

A

Fog

78
Q

Ideally, which should be used to extinguish a chimney fire?

A

Dry chemical

79
Q

Which vehicle fuel or propulsion system presents the potential for BLEVE?

A

Compressed gas

80
Q

When shutting down electrical service to a structure, you should:

A

apply a lockout device

81
Q

Class _____ extinguishing agents should be used on energized electrical equipment fires.

A

C

82
Q

Which cancer-causing material might electrical transformers contain?

A

Polychlorinated biphenyls

83
Q

What happens during a transitional attack?

A

An offensive operation is performed from the exterior.

84
Q

What is the correct method to stop the flow of gas delivered via an underground utility network into a structure?

A

Turn off the valve at the meter.

85
Q

What is the correct method to stop the flow of gas into a structure supplied by an outside LPG storage cylinder?

A

Close the valve on the cylinder.

86
Q

Which is another term for liquefied petroleum gas?

A

Propane

87
Q

Which is the best way to shut off electrical service to a building?

A

Use the main circuit breakers

88
Q

Which statement about using hose streams on a transformer fire is correct?

A

Application of water may cause splashing and spread of toxic liquids.

89
Q

Studies by NIST and UL have determined that the movement of fire through a structure is dependent primarily on:

A

flow path

ff 1 (61 decks)

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