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Keshia's LT study questions > Safety And Survival Questions > Flashcards

Safety And Survival Questions Flashcards

1
Q

What is the most dangerous area of a fire building?

A

Area directly above the fire.

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2
Q

What is the greatest danger at the collapse of a multi-story building?

A

Secondary collapse

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3
Q

A burned victims chances for survival are highest if extricated from a collapsed building within how much time?

A

The first 24 hours

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4
Q

The second greatest danger to a firefighter performing collapse rescue work is fire T or F

A

False

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5
Q

What creates the largest and strongest void in a collapsed building?

A

Cellar

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6
Q

If a wall comes more than ? During a collapse rescue operation, rescue workers should be removed from selected debris removal operations and the wall shored up or removed by a crane.

A

1I/4 of a inch

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7
Q

Warning devices on a high speed highway should be placed at least how many feet from the apparatus and positions so that they are visible to an oncoming motorist fro at least a further how many feet before that?

A

350 ft; 350 ft

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8
Q

What utility should be the first utility shut off because it is the most dangerous during a collapse rescue operation?

A

Gas

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9
Q

A sudden sporadic flash of flame mixed with smoke appearing at the upper ceiling

A

Rollover

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10
Q

The explosion of a smoke-filled room into flame; when all combustibles have become heated to their ignition temperatures

A

Flashover

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11
Q

Rapid flame spread over one or more surfaces during a fire; it is caused by the sudden ignition of combustible vapors produced from a heated surface

A

Flameover

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12
Q

When a firefighter enters a large room to search for fire after penetrating more that how any feet beyond an exit, the point of no return has been reached?

A

5 Ft

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13
Q

What is the most vital tactic in offensive interior attack strategy?

A

Advancing the initial attack hose line

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14
Q

The site survey is the first step of a collapse rescue plan T or F

A

False Secure the area is first

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15
Q

What signals the beginning of a structural collapse danger during a fire?

A

Flashover

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16
Q

When does flashover take place?

A

At the end if the growth stage and just before the fully developed stage.

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17
Q

How many unexpected dangers are there that can kill or seriously injure firefighters advancing the initial attack hoseline?

A

8

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18
Q

The greatest threat to a firefighter who must search above the fire is posed by what type building?

A

Type V wood-frame

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19
Q

List most dangerous to least dangerous building type when searching above the fire

A 
Wood frame (V)
Ordinary (III)
Heavy Timber (IV)
Noncombustible (II)
Fire Resistive (I)
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20
Q

What is the maximum angle for walking on a peaked roof without a ladder?

A

30 degrees

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21
Q

Fire in what part of a structure is the most difficult below grade fire extinguishment problem that can be encountered in the fire service?

A

Subcellar

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22
Q

Propane in liquid form expands how many times in volume as it converts from a liquid to a vapor?

A

270 times

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23
Q

Wildfire firefighting priorities are: protect life first, conserve property second, and contain the fire third. T or F

A

True

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24
Q

What is a safe method of walking on a sloping roof that all firefighters should know?

A

Flat-footed method

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25
Q

Of the 6 exposed sides of a fire the one above is the least deadly T or F?

A

False

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26
Q

Never extinguish a propane gas fire unless the fuel cant be shut off at the valve immediately T or F

A

False

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27
Q

The maximum angle for safe ladder operations is?

A

45 degrees

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28
Q

The most dangerous type of stairway to firefighters when climbing is?

A

Open stair type

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29
Q

The most common roof style

A

Gable

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30
Q

Roof style that has 4 sides sloping up from four bearing walls

A

Hip

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31
Q

The roof style often found on barns, has 2 slopes on each of 2 sides

A

Gambrel

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32
Q

The roof style that has 2 slopes on each of four sides, lower slopes are steeper than the upper slopes

A

Mansard

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33
Q

The roof style that slopes upward from one side and is supported by 2 bearing walls

A

Shed

34
Q

The safest position for a firefighter to attack any brush fire is?

A

From inside the burn area

35
Q

Sometimes called a bog fire this is a slow spreading smoldering fire in the dried out leaves and twigs on the ground. What type of wildfire is it?

A

Ground fire

36
Q

At what roof angle should firefighters only operate from aerial ladders

A

Over 45 degrees

37
Q

It is easier to become disoriented and lost on a smoky roof than a smoke filled room T or F

A

True

38
Q

At what pressure from an explosion will knock down a firefighter?

A

1 Psi

39
Q

At what pressure from an explosion will collapse to an 8” to 12” brick non-bearing wall occur

A

7-8 Psi

40
Q

At what pressure from an explosion will a collapse to and 8” - 12 “ cinder block non bearing wall occur

A

2-3 Psi

41
Q

At what pressure from an explosion will cause glass to shatter

A

0-5 Psi

42
Q

The rapid release of high pressure gas into the environment resulting in shock waves is the definition of ?

A

Explosion

43
Q

What does BLEVE stand for

A 
Boiling
Liquid
Expanding
Vapor
Explosion
44
Q

A collapse danger zone is that distance away from the unstable wall equal to the height of the wall T or F

A

True

45
Q

What should be the maximum number of firefighters on one fire balcony or one stairway between balconies?

A

3

46
Q

What is the 2nd leading cause of firefighter deaths and injuries on the fire ground according to NFPA statistics listed in Safetly and Survival on the Fireground?

A

Falls

47
Q

What is the formula for fire flow

A

Fire flow= (LxW/3) x % of involvement

48
Q

Where is the most potentially dangerous area of local floor collapse inside a burned out residence?

A

Bathroom

49
Q

Firefighters should attack a brush fire from the flanks T or F

A

True

50
Q

Flame is the most deadly and 2nd most common hazardous material a firefighter will encounter T or F

A

False most deadly and most common

51
Q

To determine a vehicles total stopping distance, what three factors must be considered

A

Perception time
Breaking distance
Reaction time

52
Q

At most fires the outside size up is more accurate T or F

A

False

53
Q

Water turns to stem and expands how many times

A

1700 times

54
Q

What is auto exposure

A

Fire spread from lower floor to upper floor on the outside of a building

55
Q

What is the recommended procedure for operation at a collapse scene where a large diameter gas main has broken causing gas to permeate the site

A

Search the surface area only for victims and then withdraw

56
Q

The only protection a firefighter possesses against an explosive blast is?

A

PPE

57
Q

IN order to safely set a master stream in operation coordination between the incident commander, the firefghter in charge of the master stream, and ? is required?

A

Interior sector commander

58
Q

What is deafening?

A

Bathroom tile of terrazzo sand bed that acts as insulation

59
Q

Ordinary construction is also known as what kind of construction?

A

Brick and joist

60
Q

A master stream device is defined as a ground based or aerial nozzle capable of delivering how many GPM or more?

A

300

61
Q

Primary high explosives are more powerful than secondary high explosives T or F

A

False

62
Q

Nitroglycerin, black powder, and blasting caps are examples of what class of D.O.T. Explosives

A

Class A

63
Q

Which class of D.O.T. Explosive is a violent explosive hazard?

A

Class C

64
Q

Safety equipment that is a possible valuable aid to reduce the chances of disorientation in smoke during a search and rescue operation include?

A

TIC, Another members voice, and 75’ or 100’ rope

65
Q

Conflagaration chances become greater at wind speeds in excess of?

A

30 MPH

66
Q

When is exterior size up more accurate than interior size up

A

When fire has spread to 2 or more floors

67
Q

The most common collision involving a fire apparatus is

A

The squeeze through

68
Q

A firefighters best protection against suffering a fall on the fireground is?

A

A flashlight

69
Q

The reasons for an exterior fire attack include

A

Inability to advance the hose line
Structure is too dangerous
Shortage of backup resources
High winds

70
Q

Defensive responding is?

A

The apparatus driver, Company Office, and Firefighters being alert and responsible for the arrival of the apparatus at the scene

71
Q

An enclosure greater than 25’ X 50’ with no interior enclosing partitions is a “large area occupancy” T or F

A

True

72
Q

A firefighter in a room that flashes over is exposed to temperatures of what range and can only escape if they are within how many feet of an exit?

A

1000-1500 degrees F/ 5 ft

73
Q

What wall collapse is the most dangerous

A

90 degree angle wall collapse

74
Q

Most combustion explosions inside buildings coccus with what percentage of the enclosure filled by the flammable gas-air mixture?

A

Less than 25%

75
Q

When performing rescue and hose line attack during the fire, firefighters are exposed to thee types of stress. Which type is the most dangerous because it continues and sometimes worsens during overhaul?

A

Heat stress

76
Q

A content fire is less dangerous than a structural fire T or F

A

True

77
Q

The power behind the axe movement comes from the swing of the axe and its weight

A

False

78
Q

The top diamond of the NFPA 704 Diamond is for health hazards T or F

A

False The left is health hazard the top is flammability and the right is stability

79
Q

What does the number 4 stand for in the 704 health hazards diamond?

A

That it is too dangerous to approach with standard firefighting equipment

80
Q

Generally, areas of how many or more floors below the fire don’t warrant forcible entry unless they show signs of specific problems?

A

2

Keshia's LT study questions (12 decks)

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