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Captain Test > Vehicle Extrication > Flashcards

Vehicle Extrication Flashcards

1
Q

Which class of lever is designed to moved objects horizontally

A

Class 2

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2
Q

Flapping or removing the roof removes:

A

The risk of side impact protection systems

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3
Q

What type of fuel is gasoline and diesel

A

Hydrocarbon based

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4
Q

Request the response of who whenever structural stability is in question

A

Building department

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5
Q

Airbags can deploy at speeds

A

Up to 200 mph

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6
Q

Which class of lever is the most efficient

A

Class 1

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7
Q

What is the primary hazard at most vehicle incidents

A

Fire

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8
Q

What are safe work distances from airbags

A

5-10-12-18-20

5 from side impact and knee bolsters
10 from driver frontal airbags
10-18 from impact curtains
20 from passenger frontal airbags

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9
Q

Which side of a battery should be disconnected first

A

Negative to prevent a short circuit

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10
Q

Third door conversion is

A

Creating a wider door opening on a 2-door vehicle

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11
Q

The exact location in which the metal or other object prevents or limits the victims from movement in a vehicle is called

A

Point of entrapment aka disentanglement point

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12
Q

The easiest way for rescuers to access passenger vehicles is to use the

A

Existing entry points

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13
Q

Lift bags are more stable if

A

They are stacked alternately with the cribbing

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14
Q

Seatbelt pretensioners are typically located

A

Near the bottom of the B post

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15
Q

What are front tires of tractors filled with

A

90 percent solution of calcium chloride or ethylene glycol and water

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16
Q

Fourth door conversion is

A

Creating another door in a panel or work van

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17
Q

Before removing the roof place a step chock where

A

Under the B-Post of unibody vehicles

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18
Q

Where should the stream be directed on an LPG tank on fire

A

Top of the tank to provide adequate cooking

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19
Q

On a vehicle incident scene, which function group is responsible for providing fire protection at the incident

A

Suppression group

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20
Q

When stabilizing a side-resting vehicle with struts rescuers must assess:

A

Vehicle construction, condition and integrity

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21
Q

What is the difference between operations and technician level on VMR Ops

A

Commercial and heavy vehicles

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22
Q

Posts can also be called what

A

Pillars

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23
Q

When removing a door rescuers must first determine:

A

Hinge side or latch side

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24
Q

What are the keys to effective response, organization and management

A

Planning and training

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25
Q

Stacked lift bags can only lift the capacity of:

A

The lowest rated device

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26
Q

A personnel accountability system is needed:

A

Any operation that requires rescuers to enter a hazard zone

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27
Q

What is the difference between dual-stage and dual-depth airbags

A

Dual depth has sensors for coming out at a different depth, Dual stage has 2 different airbags for that

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28
Q

Every year approximately how many firefighters die on roadways as a result of being struck by vehicles while working in or near moving traffic

A

6-8

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29
Q

A same-side opposing force system is:

A

Struts on the undercarriage of a side-resting vehicle with a chain bridle attached to a tensioned cape to pull back against struts

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30
Q

Minimum how many points of contact for a wheel resting vehicle

A

4

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31
Q

Laminated safety glass consists of

A

2 sheets of glass bonded to a sheet of plastic sandwiched between them

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32
Q

3 types of air purifying respirators

A

Particulate removing
Vapor and Gas Removing
Combination

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33
Q

What is the powder in an airbag deployment

A

Sodium azide residue that converts to sodium hydroxide, an alkaline powder that becomes ordinary lye when wet

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34
Q

What is the third most common vehicle fuel type after gasoline and diesel

A

Propane

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35
Q

From an extrication standpoint Every vehicle can be considered to have how many sides

A

8 : front, rear, interior, exterior, drivers side, passenger side, undercarriage, roof

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36
Q

What is the average time to drain an electronically activated airbag after the battery is disconnected

A

5 minutes

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37
Q

Most commonly used method of forcing or removing a jammed door

A

Spreaders and cutters

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38
Q

What color cables should not be cut in an airbag system

A

Yellow or yellow tagged

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39
Q

A tensioned buttress system is

A

Opposing struts on each side of a side-resting vehicle and tensioned together bases with a ratchet strap

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40
Q

Dash lift is

A

Spreaders placed in a cut under the A post in the kick board to lift the dash

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41
Q

What color do ethanol and methanol burn

A

Bright blue and produce little smoke

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42
Q

Standard operating procedures are

A

Formal methods or rules to guide the performance of routine functions or emergency operations

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43
Q

What makes tractors susceptible to lateral rollovers

A

Narrow tracks

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44
Q

Vehicle structural integrity is determined by

A

The remaining strength of the vehicles chassis after a collision

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45
Q

What is a response plan

A

What resources are responding to extrication incidents

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46
Q

Which function group on a vehicle incident scene is responsible for stabilizing crashed vehicles, patient disentangling and packaging

A

Rescue Group

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47
Q

What is the minimum traffic cones or reflective devices to be used on a scene

A

6

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48
Q

What is a catenary system

A

A series of overhead wires used to transmit electrical power to buses, locomotives and trams

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49
Q

What angle should vehicles be approached from

A

45 degree angle

50
Q

What year did passenger vehicles begin being manufactured with seatbelts

A

1968

51
Q

Rescuers should control ________ the hanging vehicle

A

Underneath

52
Q

When most passenger vehicles are empty where is the center of gravity

A

Slightly forward of the front door in the center of the car

53
Q

What is a dead-bolt lock in extrication

A

Vehicle is compressed front to back and the collision beams are embedded in the A, B or C posts

54
Q

Alternative fuels may come stored in a pressurized cylinder in what 2 states

A

Gaseous or liquid

55
Q

Supplemental restraint systems are

A

Airbags and seat belt pretensioners

56
Q

Why are front tractor tires grooved

A

For lateral purchase

57
Q

What is the most reliable and efficient termination of a wire rope

A

Flemish eye

58
Q

______ are some of the most versatile single-purpose vehicles, and can telescope more than 40 feet

A

Booms

59
Q

What is the safest way to deal with a supplemental restraint system

A

Give it space

60
Q

Crushable bumpers are not a hazard until the fire is out, then they produce what

A

Hydrofluoric acid that is highly corrosive

61
Q

What type of battery is used in the ignition system

A

Generally lead-acid

62
Q

Why avoid the danger zone in front of bumpers

A

Bumper struts that explode can launch the bumper or struts 100 feet, if one side explodes itll swing the bumper in an arc

63
Q

What is the dominant automobile construction technique

A

Spot welded unibody construction

64
Q

What is a kick panel

A

Vertical panel in front of the A post that encloses several structural members

65
Q

Standard helmet shields sizes are:

A

4-6 inches, with 6 being more desirable for extrication personnel

66
Q

What type of extinguisher is needed for magnesium on fire

A

Class D or copious amounts of water

67
Q

When faced with a vehicle in a structure rescuers must first

A

Check the condition of the structure THEN the condition of the vehicle

68
Q

Common ratings for winches range from

A

9,000 to 12,000 pounds

69
Q

Where should warning signs be placed for vehicle accidents

A

Well in advance of the accident site, incident side, no more than 24 inches from the road edge

70
Q

How many classes of lever are there

A

3

71
Q

What are the 2 types of breathing equipment typically used by rescuers

A

SCBA and air purifying respirators (APRs)

72
Q

ABCs of dealing what SRS

A

Always respect the deployment Path
Be aware
Caution

73
Q

Tempered glass is commonly used where on a vehicle

A

Side windows and some rear windows

74
Q

Fuel tanks can have between how many gallons in them

A

15-500

75
Q

Dash roll/push is

A

Ram tucked against the B post and pushing on the dash

76
Q

Many vehicle hazards can be grouped into one of two categories

A

Hazards from energy sources

Hazards from beneficial systems

77
Q

When cribbing a vehicle allow the cribbing pieces to extend at least

A

4 inches beyond the individual pieces of the base

78
Q

It is recommended minimum what size line be charged and ready on an extrication

A

1.5” with 2 FFers in gear

79
Q

What is the strongest type of material used for slings

A

Wire rope

80
Q

Stabilizing an RV may be more like stabilizing a _____

A

Bus

81
Q

What age child should not ride in the front seat of vehicles

A

12

82
Q

Cribbing is most often installed in a _____ formation

A

Box

83
Q

Most common method of organizing a rescue scene:

A

Three operating zones
Restricted (hot)
Limited access (warm)
Support (cold)

84
Q

What is an underride or override incident

A

A vehicle is forced underneath another vehicle that sits higher off the ground or vice versa

85
Q

If the vehicle is equipped with a smart key and the battery is unable to be disconnected:

A

Remove the key from the area

86
Q

How do you shut off the fuel on a train

A

Push and hold the emergency fuel shutoff device for 8-10 seconds, the engine will shut off within 1 minute

87
Q

Hybrid vehicles can have as much as how many volts and current

A

800 volts of DC current

88
Q

What might be the first indication of the need to stop and assess the scene before approaching

A

Fleeing pedestrians

89
Q

Common length of throw for a winch is

A

100 feet

90
Q

Successful operation at a vehicle incident is defined by:

A

How effective and safely it was conducted

91
Q

All railroad passenger cars have what type of doors

A

End doors, swing inward or slide sideways to open

92
Q

The most common articulating vehicles are

A

Large earthmovers and large tractors

93
Q

Rescuers should ________ ________ the sizeup of a vehicle accident involving an industrial vehicle

A

Systematically conduct

94
Q

Personnel should wear appropriate reflective clothing on scene such as:

A

DOT Class 3 safety vests

95
Q

How fast do front impact airbags deploy

A

0.05 seconds in excess of 200 mph with over 3,000 psi

96
Q

Rocker panels are

A

Rounded narrow body panels on each side of the vehicle below the doors and between the kick plate and the quarter panel

97
Q

Prior to lifting an object off a car first:

A

Capture the vehicles suspension

98
Q

Deflating tires prevents

A

The vehicle from rising as it gets lighter when rescuers remove components

99
Q

What kind of movement does cribbing placed under the sides of a vehicle prevent

A

Lateral movement

100
Q

Rescuers practice stabilization in:

A

Phases, initial is wedges/wheel chocks/step chocks, secondary is struts/chains/straps/cribbing

101
Q

APRs can be

A

Powered or non-powered

102
Q

__________ relates to the removal and/or manipulation of vehicle components to allow the removal of a properly packaged victim from the vehicle

A

Disentanglement

103
Q

All underplayed airbags must be considered

A

Live

104
Q

Risk-benefit analysis is what

A

Comparison between the known hazards and potential benefits of any operations

105
Q

What is a consist

A

Group of rail cars, rail shipping papers that contain a list of cars in the train by order, indicates which cars have hazardous materials

106
Q

Cross ramming is:

A

Using hydraulic rams on the interior of the vehicle to push the B post away

107
Q

From the standpoint of survival, __________ can be one of the most critical steps in the entire extrication operation

A

Assessment

108
Q

High-intensity discharge headlights are filled with

A

Xenon gas

109
Q

Time-related ratings of SCBA cylinders represent:

A

The maximum amount of time the air supply will last under ideal circumstances

110
Q

Cutting a 12 volt negative cable in a hybrid car:

A

Opens relays that isolates the high-voltage system

111
Q

Ultra-high strength steels used to reinforce B-posts, roof rails and rocker panels to make a car more crash worth are known as

A

Advanced steels

112
Q

Load limiters on seatbelts:

A

Release the belt tension in a controlled manner to ease passengers into the airbag

113
Q

On level tracks, what may be all rescuers need to do to stabilize a rail car

A

Apply the hand brake

114
Q

APRs should only be warn when what level of O2 is present

A

19.5-23.5%

115
Q

What system is considered the safest form of stabilization in a side-resting situation

A

Same-side, opposing force system

116
Q

Power cables in hybrids are what color

A

Orange, yellow or blue

117
Q

Before conducting rescue operations what should be conducted

A

Hazard and risk assessment survey of the response area

118
Q

Four basic methods of extrication:

A

Manipulative, disassembly, cutting and forcing

119
Q

On freight trains, the only cars likely to contain victims would be

A

The locomotive

120
Q

A vehicle’s _______ _____ _________ significantly affects its stability

A

Center of gravity

121
Q

How far ahead do forward looking collision avoidance systems scan

A

300 feet

Captain Test (14 decks)

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