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principles of pressure > Chapter 4 > Flashcards

Chapter 4 Flashcards

Chapter 4

1
Q

Driver/operator should position their apparatus for the?

A

Safest and most advantageous use of the features of the apparatus.

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2
Q

Fire department pumpers primary function on the fire ground is to?

A

To provide water directly for firestreams or to support other pumpers or aerial apparatus.

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3
Q

What/and or who determine the best placement for the first arriving and later-arriving pumpers on the fire ground?

A

Local policies,the company officer, and the driver operator

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4
Q

What will assist the driver/operator to make informed decisions regarding Apparatus positioning

A

Pre-incident planning and district familiarization

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5
Q

What determines the most advantageous position for the attack pumper?

A

Incident scene size up

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6
Q

The driver/operator and company officer of the first arrive in apparatus must observe conditions and determine the best apparatus position based on?

A

Initial attacks strategy and department policy

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7
Q

The position of the initial company, along with local operating guidelines and order from the incident commander will (pg 136)

A

set the scene for later arriving in apparatus to support

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8
Q

When fire conditions are evident upon arrival, the driver should place the apparatus in a safe position that offers the best

A

Tactical advantage

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9
Q

When positioning apparatus, the driver/operator should:

A

• Pull the apparatus past the front of the
building
•Consider the best access point for personnel
and equipment
• remain with the Apparatus(based on local
policy)
•

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10
Q

Proper placement for numerous situations that may occur are?

A 
1• rescue situation
2• exposures
3• water supply
4• method of attack
5• Hose lines deployment
7• Wind direction
8• terrain
9• roadway response 
10• structural collapse
11• pre-incident planning
12• overhead utility lines
13• falling debris
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11
Q

If there is any indication of obvious rescue situation,position the apparatus (pg.137)

A

To facilitate the most efficient deployment of ground ladders (or aerial device if so equipped)

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12
Q

Avoid placing the Apparatus in a location that may subject it to

A

High level of radiant heat,fall embers or other productions of combustion

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13
Q

Only after a proper size up confirms the location and extent of the fire can a pumper onboard tank be considered for

A

Water supply

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14
Q

If hand lines are portable master streams are to be used, the pumper must be positioned in

A

Close proximity to the building or incident scene to allow effective water supply

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15
Q

If a fixed appliance to be operated, the Apparatus must be position in a safe location close enough for the fire stream to reach it intended target, but with consideration for the

A

Collapse potential of the structure

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16
Q

Wildland fire move uphill faster than on

A

Flat terrain or downhill

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17
Q

Indicators that factor into the incident commander decision to withdraw Firefighter and Apparatus from an area or building are

A

1• reinforcement rods(ornamental stars or
bolts)
2• bulging walls
3•Traveling exterior cracks and falling bricks
4• interior collapse

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18
Q

Dependent on the incident, apparatus, equipment, and personal operating within____of the base of a high-rise fire may need to be protected from falling glass and debris

A

200’

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19
Q

Driver should position pumpers providing water supply for elevated stream operation as closely to the aerial apparatus as practical because

A

Friction loss due to distance and elevation are major consideration when supporting elevated streams

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20
Q

In order to supply a fire department connection most efficiently a pumper should position as closely as possible to the water source. this location is best determined through

A

Pre-incident planning

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21
Q

Preference should be given to drafting locations that are accessible from

A

A hard surface and required minimum length of hard intake hoses or lift

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22
Q

Limiting lift is of critical importance in achieving the best possible

A

Discharge capabilities

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23
Q

Drivers must be weary of drafting from location that are

A

Offhard surface

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24
Q

When considering any questionable location for drafting,conduct

A

Risk/benefit analysis

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25
Q

What is a dry hydrant

A

A permanently installed pipe that has pumper suction connection installed at static water source to speed drafting operation

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26
Q

Some department have to used hard intake hose to connect a pumper to a hydrant

A

true

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27
Q

When using the side intake connection to connect to a hydrant. To avoid blocking the street with the Apparatus the driver must

A

Stop close to the curb with the pump intake a few feet short of being in line with the hydrant

28
Q

Stopping short of the hydrant also the intake hose to curve slightly,preventing

A

Kinks that can drastically restrict flow

29
Q

Tandem pumping the higher pressure is a result of two pumpers acting in

A

Series

30
Q

Relay pumping is generally use to increased the _____of water available at a fire scene while tandem pump in (another form of relay) is most often undertaken to increase water _____

A

VOLUME,PRESSURE

31
Q

For safety and efficiency,once the apparatus arrive at the structure it is assigned to protect in wild land fire:

A

.

32
Q

Anchor point

A

A natural or man-made barrier that would prevent the fire from encircling the vehicle and crew

33
Q

Typical anchor are

A

Roads,Lakes,ponds,or previously burned areas

34
Q

Position the apparatus ____on the side of the structure to minimize exposure to heat in blowing embers

A

LEEWARD

35
Q

How does the wildland crew ensure complete extinguishment when progressing along the fire edge

A

By working engines in tandem. Additional personnel and Apparatus may be used to mop up

36
Q

If the fire is spreading rapidly _____draw engine and crew back to the flanks rather than attempt a frontal attack

A

Upslope

37
Q

Do not drive into ____where crew may be operating

A

Smoke near the location of other crew

38
Q

Base

A

Maybe established as an area from which large number of personnel and quantities of equipment may be deployed. This area serves as a primary point outside incident area to which responding units report a receive initial order for action

39
Q

the driver must exercise care when stepping beyond the protection offered by

A

The tailboard of a properly place apparatus

40
Q

Decontamination process usually take place within

A

The Decon corridor located in the warm zone

41
Q

The proximity of the exhaust discharge from Park apparatus should be

A

Considered relative to the location of patient being extricated are treated nearby

42
Q

Whether responding to an incident along limited access highway, City street, rural Road, or urban/Wildland interface, apparatus must be positioned for

A

Maximum safety and efficiency

43
Q

In order to accomplish maximum safety and efficiency a driver/operator must understand the role of the Apparatus and the overall IAP

A

true

44
Q

The understanding of the IAP will be based on

A
  • pre-incident planning
  • knowledge of department policies
  • Communication from the IC
45
Q

What is the 1st tactical priority at any incident

A

LIFE SAFETY

46
Q

a primary concern of the driver and company officer in the placement of the pumper is

A

ESTABLISHING WATER SUPPLY

47
Q

when should a pumper on board tank can be consider for water supply

A

after a proper size up confirm the location and extent of the fire

48
Q

one exception to the uphill rule

A

wild land fire (fire move faster uphill in wild land)

49
Q

Apparatus may be located up to_______in tandem pumping

A

300’

50
Q

relay pumping is generally used to increase _____of water at a fire and tandem is used to increase water______

A

volume,pressure

51
Q

the maximum attainable lift is…(a fire engine in fairly good condition can lift 2/3 of the theoretical lift,2/3×33.9

A

22.5’

52
Q

for stand pipe evolution,if the pumper is more than 100’ from the FDC on a building, an additional _____psi must be added for each 100’ of additional hose

A

25

53
Q

FDC consists of a

A

consists of a clappered siamese with two or more 2.5” intakes or one large diameter( 4”) intake

54
Q

Many jurisdictions installed

A

Dry hydrant,which should be Flow tested by AHJ to determine their capabilities

55
Q

Operation where a strong hydrant is used to supply to pumpers by connecting the pumpers intake to intake

A

Dual pumping

56
Q

A method used when pressures higher than the capability of a single pump are required

A

Tandem pumping

57
Q

For a fully loaded train to make a complete stop may required how many mile

A

1-2

58
Q

Apparatus should maintain a clear zone of___From a railroad tracks to prevent contact

A

30’

59
Q

the standard for the inspection, care and use of fire hose, couplings and nozzles is

A

NFPA 1962

60
Q

the boundary between wildland and structural development is often referred to as the (pg.146)

A

Wildland urban interface (challenging environment for firefighting operations)

61
Q

__________ ______ staging is often used on any multiunit response of two or more units, the first arriving vehicles of each type proceed directly to the scene and the others stand by a block from the scene and await orders (Engine by the closest hydrant)

A

LEVEL 1(pg.150)

62
Q

MUTCD stands for

A

manual of uniform traffic control device

63
Q

MUTCD advises that emergency vehicle warning lights should be used as necessary to reach the incident but once on scene their use should be

A

Reduced as much as possible

64
Q

For structures threatened by wild land fires, Engine should be backed in

A

From the last known turn around, and the crew should note the locations of landmarks along the way

65
Q

Driver/operator must be well-trained and knowledgeable in local _____ ______in order to efficiently execute any maneuvers the incident commander or the IAP may require

A

policies and procedure

66
Q

What situation may require tandem pumping operations

A

1• When it is necessary to supply a high-rise
sprinklers or standpipe
2• where the attack pumper is located
relatively short distance from the water
source but a great distance from the fire

principles of pressure (17 decks)

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