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FF3 > AOT Hydroaulics > Flashcards

AOT Hydroaulics Flashcards

1
Q

1 Gallon of water weighs?

A

8.34lbs

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2
Q

How many cubic inches in 1 gallon of water

A

231cu in

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3
Q

How many gallons of water in 1 Cubic foot?

A

7.48 gallons

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4
Q

1 cubic foot of water weighs?

A

62.4lbs Salt water =64lbs

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5
Q

1 cubic foot = ____cu in.

A

1728

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6
Q

Area of a square:

A

LxW

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7
Q

Area of a circle:

A

.7854 x Dsquared

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8
Q

Volume of a Cube:

A

LxWxH

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9
Q

Volume of a Cylinder:

A

.7854xD²xLorH

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10
Q

1lb of pressure will raise water _______ft.

A

2.31

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11
Q

A column of water one inch square and one foot high exerts a pressure of _____lbs.

A

.434lbs

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12
Q

Water will remain solid below ______°F

A

32

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13
Q

Water will remain a liquid at _______°F

A

32-212

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14
Q

Water will turn to steam above _____°F

A

212

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15
Q

What is the formula for the discharge in gpm from a nozzle?

A

30D²√p

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16
Q

What is the formula from an open butt hose?

A

27D²√p

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17
Q 
Lines Available
% Drop
≤10%
≤11-15%
≤16-25%
>25%
A 
Lines available
\+Lines
3
2
1
0
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18
Q

What is the formula for Nozzle reaction?

A

1.57xD²xP

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19
Q

What 5 is the discharge formula for sprinklers?

A

.5P+15= 1 head (X by # of heads flowing)

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20
Q

How do you get the Pump Discharge Pressure?

A

PDP = NP + TPL

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21
Q

How do you get the Total Pressure Loss?

A

(TPL)Total Pressure Loss =

(FL)Friction Loss + (APP) ± (BP) Back Pressure

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22
Q

What is the formula for Friction Loss?

A 
FL = CQ²L
FL = Friction Loss
C = Coefficient
Q = GPM ÷ 100
L = Length of hose ÷ 100
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23
Q

What is the Nozzle Pressure for a Solid Stream Nozzle (Handline)?

A

50 PSI

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24
Q

What is the Nozzle Pressure for a Solid Stream Nozzle (Master Stream)?

A

80 PSI

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25
Q

What is the Nozzle Pressure for a Standard Fog Nozzle?

A

100 PSI

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26
Q

What is the Nozzle Pressure for a Low Pressure Fog Nozzle?

A

75 PSI ?

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27
Q

What are the Coefficients for 1” Hose line?
1½” Hose line
2½” Hose line
4” Hose line

A

1” Hose line - 150
1½” Hose line - 24
2½” Hose line - 2
4” Hose line - .2

28
Q

What is the Friction loss for a 1” hose flowing 30 GPM?

A

Actual FL Field Calc

13.5psi 15psi

29
Q

What is the Friction loss for a 1½” Hose line flowing 60 GPM?

A

Actual FL Field Calc
8.64psi 10
(1½” Hose line wyed to 2 1”)

30
Q

What is the Friction loss for a 1½” Hose line flowing 125 GPM?

A

Actual FL Field Calc

37.5 35

31
Q

What is the Friction loss for a 1½” Hose line flowing 185 GPM?

A

Actual FL Field Calc
82.14 80
(CAFS 15/16” Nozzle)

32
Q

What is the Friction loss for a 2½” Hose line flowing 250 GPM?

A

Actual FL Field Calc

12.5 15

33
Q

What is the Friction loss for a 4” Hose line flowing 1000 GPM?

A

Actual FL Field Calc

20 20

34
Q

What is the friction loss for Ladderpipe?

A

25psi

35
Q

What is the friction loss for Dry Standpipe?

A

25psi

36
Q

What is the friction loss for Deluge/Turret?

A

25psi

37
Q

What is the friction loss for FDC Sprinkler System?

A

150psi

38
Q

What is the friction loss for Wye, Siamese Connection, or RAM?

A

Less than 350 GPM 0

350 GPM or more 10

39
Q

What is the Friction loss for a 1” hose flowing 50 GPM?

A

Actual FL Field Calc
43 40
(.5” Smooth Bore Nozzle)

40
Q

What is the GPM for a 15/16” smooth bore nozzle tip?

A

185 GPM

41
Q

What is the GPM for a 1” smooth bore nozzle tip?

A

200 GPM

42
Q

What is the GPM for a 1½” smooth bore nozzle tip?

A

600 GPM

43
Q

What is the GPM for a 2” smooth bore nozzle tip?

A

1000 GPM

44
Q

What is the GPM for a 1 1/8” smooth bore nozzle tip?

A

300 GPM

45
Q

What are the forms that should be in your vehicle accident packet?

A

• C&C Automobile Loss Notice (Dept. vehicle accident w/non dept. or property)
• DHR-ISWC-VARC -1 (Vehicle accident investigation form)
• Registration • No Fault

46
Q

What are the accident procedures for a Serious Accident?

A
  • Fatality/Vehicle towed/Medical attention away from
    scene
    • Stop and give aide • Notify FCC
    • Location
    • Persons involved
    • Number and extent of injury
  • Involved vehicle/property • Resources needed
    • FCC will notify HPD, EMS, appropriate BC, AC of Admin (24hr/next shift)
    • Fleet Safety immediately for injury/fatality • Avoid argument, accusations, liability, payment,
    assumed obligation, expenses • Owner not present = leave note
    • Move vehicles from road
    • Vehicle Accident Packet (C&C Automobile Loss
    Notice, ISWC-VARC-1, Reg., Insurance)
    • Obtain info from drivers, witnesses, badge#, injured,
    Lic.#, pictures
    • Apparatus in accidents w/non dept. vehicle- Accord 2
    to Fleet Safety (24hrs)
    • Employee injured ISWC-1 filled out by Co. Cdr.
    • Form 74 filled out by all on apparatus (what they saw before, after and during)
    • If responding Co. Cdr. will determine if apparatus safe to continue, leave 1 FF
    • Injury or death, do not leave scene
    • BC will ensure proper forms are completed and take
    photos
47
Q

What is the procedure for a non-serious accident?

A

• Stop and Render aide
• Notify FCC w/pertinent information
• Follow same protocol
• With approval of responding Chief, may leave a member at
scene to render aide

48
Q

What about accidents with private vehicles doing official business?

A
  • Stop and render aide
  • Notify HPD through FCC
    • Report accident to immediate supervisor
    o Form 74 through channels to Fire Chief
    o Accord 2 and CS-S2 not needed (guide in obtaining
    information)
    o Injuries reported on ISWC-1
    o If apparatus contributed to an accident, this procedure
    is used
49
Q

What is a good following distance procedure?

A

• Engine – 1 second for every 10’ of length (40 mph or less) o (Add 1 sec over 40mph)
• Type 3 – 2 second plus rule

50
Q

What conditions means taking an apparatus out of service?

A

• Temp 205° (pilot light) • Air Pressure 90 psi
o Leak more than 3 psi class B (4 psi class A)
• Oil Pressure 5 psi (warning light)
• Flat tire (blowout)
• Unusual noise or smell indicating mechanical trouble

51
Q

Hose testing- Conducted annually from January 1- June 30th

A

o Gaskets are replaced on the even number years o Hose testing shall be documented on HFD 036
• Burst test: at least 3 times the service test pressure
• Proof test: at least 2 times the service test pressure
• Kink test: at least 1.5 times the service test pressure • Service Test pressure: 110% of the operating pressure • Hoses shall be tested for a time of 5 minutes
• Hose lengths shall not to exceed 300ft
• Similar-sized hoses with similar service test pressures
shall be tested together.
• Supply lines shall be tested at 300 psi
• Attack lines shall be tested at 400 psi
• Fire apparatuses shall pump no more than 250psi net
engine pressure
• The supply hose to the tester shall be connected to a 2
1⁄2 gated ball valve that shall be equipped with a ball that has a 1⁄4” hole, and shall be connected opposite of the pump panel.
• The inline valve shall be left open while the hoses are
filling up with water and closed afterward and the
hose tester activated
• If a hose bursts, that hose shall be removed and the
remaining hoses shall be tested for the remaining time. • If there is a leak in the hose, a rag shall be tied to the
location of the leak, and the hose shall be tagged and
sent in to the storeroom.

52
Q

Safe Highway Operations

A

• Advance Warning: 5 times the posted roadway speed
• Buffer Zone: 10ft for every 5 mph of posted roadway speed
• Upstream: direction the traffic is moving as it approaches the incident scene.
• Lane of traffic shall be identified beginning from the
righty to left from the approaching motorist’s point of
view. (Lane 1, Lane 2, etc)
• Typically, vehicles travel at a lower speed in the lower
numbered lanes
• Right and left directions shall be identified from the
approaching motorist’s point of view
• Class III vests shall be worn at all times unless
fighting a car fire
• Warning flares shall be deployed at 15 ft intervals
upstream of the blocking apparatus, with the furthest
flare at 75ft. 5 flares shall be utilized
• Warning flares on limited-access, high-volume
roadway shall be placed farther apart, with the last
flare 150 feet upstream.

53
Q

CAFS simple notes

A

• Transfer valve shall be set to Volume
• Nozzles need to be fully opened or completely shut • For proper agitation in the hose line, the following
lengths are listed
o 1 inch: minimum 50 ft o 1 1⁄2 inch: minimum 100 ft o 2 1⁄2 inch: minimum 150 ft
• Thermal imaging camera will not display objects covered with foam
• PDP shall be set to 100 psi for handlines and 140 psi for master stream operation
• Monitor the pomp compressor (165-210F)
• Interior attacks wet foam (2:1) shall be applied. Very
wet foam (3:1) usually for master streams
• For exposure: Fluid foam (1:1) shall be applied or a
two-tiered approach (wet foam covered with fluid
foam)
• Class A foam is biodegradable, at least 60% of the
foam will be reduced to a molecular level within 28 days. Drill sites shall not be used for 28 days- a HFD for 91 shall be documented on
• Drain time: the time it takes for foam bubbles to pop, returning to its liquid form.
• Air compressor oil sight glass: ensure that the oil is
amber in color.

54
Q

Use COMPASS to update the Hazmat companies

A

o Container shape and size
o Occupancy and location
o Markings and Colors
o Placards and labels
o Assume it is hazmat
o Shipping papers and material Safety data sheets
ERG

55
Q

Types of Gates

A

• Ball Valve- used on pumper discharges and gated wyes
• Gate Valve- common of fire hydrants
• Butterfly Valves- Used on pump intakes
• Clapper Valves- used in Siamese appliances

56
Q

Hose stream characteristics?

A

• 1 1⁄2 inch: 40-125 GPM 25-50 feet
• 2 1⁄2 inch: 125-350 GPM reach 50-100 feet
• Master stream: 350-2000 GPM maximum reach 100-200 feet

57
Q

What are characteristics of Natural Gas?

A

• In its pure form is methane, which is lighter than air and non-toxic
• Has no odor but is given the odor of Mercaptan

58
Q

What are characteristics of LPG?

A

• Also known as bottle gas (butane or propane)
• 1 1⁄2 heavier than air
• Explosive in concentrations of 1.5-10%
• Leak will produce a cloud of vapor that hugs the
ground
o Can be dissipated by fog stream of at least 100 GPM
o Most LPG tanks have the shut-off located on top

59
Q

What is the GPM for a 1 3/8” smooth bore nozzle tip?

A

400 GPM

60
Q

What is the GPM for a 1/2” smooth bore nozzle tip?

A

50 GPM on a 1” line

61
Q

What is the Friction loss for a 2½” Hose line flowing 30 GPM?

A

Field = 0 psi

62
Q

What is the Friction loss for a 2½” Hose line flowing 125 GPM?

A

Field = 5 psi

63
Q

What is the Friction loss for a 2½” Hose line flowing 200 GPM?

A

Field = 10 psi

64
Q

What appliances have a friction loss of 25 psi?

A

Deluge/turret
Standpipe connection
Ladder Pipe

65
Q

What is the Friction loss for a wye, Siamese connection, or RAM?

A

Less then 350 gpm 0 psi

More then 350 gpm 10 psi

66
Q

What is the gpm for hoses when pumping caffe?

A

1 “ 30-40 gpm

1 1/2” 90-100 gpm

2 1/2” 140-160 gpm

Turret. 140 psi

67
Q

What Ladders are on the engine?

A

1 Ladder, Ground, Extension, Minimum 24’

1 Ladder, Roof, Minimum 14’

1 Ladder, Collapsible, Minimum 10’

FF3 (14 decks)

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