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Engineer > Chptr 17- Positioning Aerial Apparatus > Flashcards

Chptr 17- Positioning Aerial Apparatus Flashcards

1
Q

Area beneath a wall in which the wall is likely to land if it looses structural integrity

A

Collapse zone

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2
Q

If the fire building is less than 5 stories, ______ companies should park on the side of the street closest to the building, and ______ apparatus should park on the outside of the engine.

A

Engine

Aerial

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3
Q

If the building is greater than 5 stories, the _____ companies take the outside position and the ______ apparatus park next to the building.

A

Engine

Aerial

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4
Q

____ __________ at ___ ______ place the maximum amount of stress on an aerial device and in some cases reduce its load carrying capacity.

A

Long extension

Low angles

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5
Q

________ refers to positioning the apparatus in a location that provides the utmost efficiency for operating on the fire ground.

A

Spotting

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6
Q

What are tactical considerations affecting aerial apparatus placement?

A 
Windy conditions
Angle and location of aerial device
Grade
Electrical hazards and ground or overhead obstructions
Surface conditions
Special situations 
(WAGESS)
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7
Q

Only as a last alternative should apparatus be parked on ____ ________

A

Soft surfaces.

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8
Q

Unattached flat metal plate that is larger in area than the stabilizer foot, used in order to provide better weight distribution.

A

Stabilizer pad

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9
Q

_______ ______ are a good indicator of underground voids

A

Manhole cover

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10
Q

Ground above underground vaults such as underground parking structures, utility chases, drainage culverts, or underground transportation systems

A

Vaulted surfaces

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11
Q

The most common spotting consideration in cold weather conditions is the presence of ___ or ____ on the parking surface

A

Ice

Snow

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12
Q

Primary consideration with ___ weather is that it may tend to weaken marginal or otherwise firm paced surfaces.

A

Hot

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13
Q

Loads that involve motion. They include the forces arising from wind, moving vehicles, earthquakes, vibration, or falling objects, as well as the addition of a moving load force to an aerial device or structure.

Moderate to high winds impose a _______ ____ on the aerial device.

A

Dynamic load, aka shock loading

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14
Q

Stay away from the power line or vehicle, keeping ____ feet on the ground at the same time, this will prevent you from becoming a conductor between two areas of the ground that are charged differently.

A

Both

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15
Q

When parking the apparatus, it is just as important to look __ as it is to look at the ground.

A

Up

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16
Q

Electricity will arc across a gap as large as __ft, and all overhead wires or cables should be considered hazardous and dangerous.

A

10

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17
Q

Fire service standard has been to provide __ft of clearance between the aerial device and overhead high-voltage lines energized from ___ to _____volts, and __ft of clearance for high-voltage transmission lines over _____volts

A

10
600 to 50,000volts
50
50,000volts

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18
Q

Do not work within __ft of high voltage transmission lines.

A

50

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19
Q

OSHA overhead power line clearance standard for the construction industry requires __ft between the device and overhead electric lines of less than ___kilovolts.
For high tension lines over ___kilovolts, OSHA requires __ft of clearance

A

20
350
350
50

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20
Q

If power line voltage is unknown, keep __ft away

A

50

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21
Q

If in or near a vehicle with a down power line, depending on voltage of the power line, the distance you need to travel can be upwards of ___ft
Remover to ___or _______, not walk or crawl!

A

150

Hop shuffle

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22
Q

If someone is trapped inside a vehicle that has come in contact with a power line, instruct them to

A

Stay inside and not to exit, unless their life is in eminent danger or a fire is present.

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23
Q

The apparatus is most stable when the aerial device is operated directly over the _____ or ____ of the vehicle, which is considered being in line with the longitudinal axis of the apparatus

A

Front

Rear

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24
Q

Increasing the angle of the aerial device away from the longitudinal axis of the truck ________ the load weight that can be carried safely.

A

Decreases

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25
Q

An angle _____________ to longitudinal axis of the apparatus is the least stable option.

A

Perpendicular

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26
Q

For rear mounted aerial devices, ______ in the apparatus is the preferred method, as this maximizes the reach of the aerial device. The opposite would be true for midship mounted devices.

A

Backing

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27
Q

Tillered Aerial Apparatus.
Greatest stability occurs when jackknifing the cab of tiller __ degrees from in-line and the aerial device is extended ____ from this angle

A

60

Away

28
Q

Deploying ladder with a jackknifed tiller. Good stability occurs at angles up to __ degrees.

Beyond __degrees stability decreases rapidly.

A

90

29
Q

Condition of the truck tractor/semitrailer combination when their relative positions to each other from an angle of 90 degrees or less an out the trailer kingpin, such as turning the tractor portion of a tractor-trailer aerial apparatus at an angle from the trailer to increase stability when the aerial device is being used.

A

Jack knifing

30
Q

________ are those factors that work against the aerial device’s strength

A

Stresses

31
Q

Stress may be imposed in both ______ and _______ operation

A

Static (at rest)

Dynamic(in motion)

32
Q

The stress tends to be greater when the aerial device is __ ______

A

In motion

33
Q

Stress in aerial devices is _________ when the ladder rungs are operated ___________ to the ground or when the apparatus is parked on an _______ and the aerial device must operate off the side of the apparatus. These positions create _______, or a twisting action on the ladder or boom and turntable.

A

Increased
Nonparallel
Incline
Torsion

34
Q

The maximum loading for any unsupported aerial device occurs when operated at angles between __ and __ from horizontal.

A

70 and 80

35
Q

Aerials operating at ___ ______ of elevation and at a ____ _________ are at their weakest operational position.

A

Low angles

Long extensions

36
Q

A _________ aerial tip is one that is resting against the target location

A

Supported

37
Q

Most modern aerial devices are designed to be operated in the ___________ position.

A

Unsupported

38
Q

All individuals operating at the scene of highway incidents must wear an approved __________ ______ ____.

A

Reflective safety vest.

39
Q

On high-speed roadways, apparatus ______ ___ be driven against the normal flow of traffic unless the road has been cleared by law enforcement officials for that purpose.

A

Should not

40
Q

Position a vehicle so that the _________ side of the vehicle is protected from the flow of traffic

A

Operators

41
Q

Consider parking additional apparatus __ to ___ feet behind the shielding apparatus to act as an additional barrier between firefighters and the flow of traffic.

A

150 to 200

42
Q

Once on scene, place the headlights to ___-____ setting, _______ flashing.

A

Low-beam

Without

43
Q

During nighttime incidents, use a ________ number of warning lights at the scene to prevent blinding other drivers or distracting them, possibly leading to another incident.

A

Minimum

44
Q

Most railroad companies advise that vehicles be kept at least __ft from the tracks when possible. Pg 627

A

25

45
Q

Even when a halt conformation has been received (no trains moving on tracks), keep the aerial device at least __ft above the level of the railroad rails as an added safety precaution.

A

25

46
Q

If multiple apparatus must work on a bridge, do not park or operate all apparatus on the same ____

A

Span

47
Q

Residential driveways and yards are not recommended as ______ ________

A

Stable surfaces

48
Q

When operating at storage tank fires, the apparatus should _____ be spotted inside the dike that surrounds the affected tanks

A

Never

49
Q

It is more efficient to discharge foam streams ________

A

Downwind

50
Q

If the tip of the device is to be placed in an aircraft doorway, the apparatus should be positioned, the same as, for accessing the window of a building, tip to the bottom of the sill. In this case tip to the ______ of the ____ _______.

A

Bottom

Door Opening

51
Q

If the objective is to provide access over a wing or remove victims from a wing, the positioning principles are basically the same as for providing access to the ____ of a ________.

A

Roof

Building

53
Q

Generally, SOP’s involving apparatus placement at a fire scene apply to aerial apparatus assigned to the _______ response only.

A

Initial

54
Q

Thin skinned paved surfaces are most common in _______ ____

A

Parking lots

55
Q

Depending on the operational capabilities of the apparatus and the severity of the grade, apparatus with two rear jacks may need to face ______

A

Uphill

56
Q

During warm weather operations, dry solid ground can become unstable from __________ ______

A

Fireground runoff

57
Q

One visual indicator of a compromised asphalt surface due to extreme heat is asphalt that “______” creating a shiny, glass like surface.

A

Bleeds

58
Q

Keep __ ft from power line if voltage is unknown

A

50ft

59
Q

Working aerial on a grade.
Ideally, the truck should be operated in the _____ position, with the aerial device directly __-____ to reduce the stress.

A

Uphill

In-line

60
Q

As extension increases, aerial loading must ________

A

Decrease

61
Q

Turn the front wheels ____ from the ff’ers working highway incidents so the app will not be driven into ff’ers if struck from behind

A

Away

62
Q

Close at least ___ lane next to the incident lane

A

One

63
Q 
When potting an apparatus at a SF, driver should be MOST aware of ;
A-Falling debris
B-Dead end accesses
C-Hazardous materials
D-Passing motor vehicles
A

A

64
Q

Remember that bridges and elevated sections of roads (Overpasses) will be the _____ road surfaces to freeze during cold weather.

A

First

65
Q

BEST potential sign of structural collapse that may be identified from an overhead look on an aerial

A

Bulging walls

66
Q

General considerations which should be prepared en route to a has mat call

A

Wind speed and direction from dispatch
Approach the call from upwind and uphill
Stop short or incident until nature of hazard is understood
Do not park over man holes or storm drains

67
Q

It is more efficient to discharge foam streams ________

A

Downwind

68
Q

Technical rescue incidents setting up aerial for access.

Maintain adequate _________ away from any unstable terrain that could cause the apparatus to lose its stability.

A

Distance

Engineer (8 decks)

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