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Engineer Study Guide > IFSTA DRIVER OPERATOR > Flashcards

IFSTA DRIVER OPERATOR Flashcards

0
Q

Code 3 driving speed allowed over posted

A

10 mph over posted

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1
Q

NFPA 1002, 1451, 1901, 11C

A

1002- driver/operator qualms
1451- vehicle ops training
11C- mobile foam apparatus

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2
Q

Water tender minimum gallon capacity

A

1000 GPM

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3
Q

Pump capacity and increments

A

Starts at 750 GPM and increases by 250 increments

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4
Q

Mini pumper/ midi pumper

A

500/1000

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5
Q

Quint

A

Aerial, ground ladders, pump, water, fire hose
Minimum pump- 250 GPM
True Quint 750 GPM

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6
Q

Inverter

A

12-24 volt DC to 110-220 volt AC

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7
Q

ARFF

A

Aircraft Rescue and Fire Fighting

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8
Q

Type 1 engine capacities GPM and pump

A

1000 GPM pump

400 gallon pump

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9
Q

Type 3 capacities

A

500 pump

400 tank

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10
Q

Water tender types

A

1- 300 GPM 5000 Tank
2- 200 GPM 2500 Tank
3- 200 GPM 1000 Tank

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11
Q

Walk around approach

A

Lean/stance

Leaks/fluids

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12
Q

Left drivers side walk around

A

Observe cab
Check doors/mirrors
Window/glass

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13
Q

Walk around tire/ wheel

A

Wheel-missing, bent studs, lugs, clamps.
Check each lug by hand.
Fluid leaks

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14
Q

Walk around suspension

A

Springs, spring hangars, shackles, u bolts, shock absorbers

Leafs- no cracks or broken

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15
Q

Walk around tires

A

Inflation, stem condition, condition, depth

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16
Q

Walk around front

A

Damage, wind shield, under cab axel, steering

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17
Q

Walk around rear of cab to tailboard

A

Damage, tires/suspension,

duals same tire with no touching

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18
Q

Walk around rear

A

Tail board, hose loads, lights

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19
Q

Walk around in cab

A

Seatbelt, mirrors adjust, gauges

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20
Q

Steering wheel free play

A

No more than 10 degrees

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21
Q

Parking brake holding on a grade?

A

Hold up to 20% grades

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22
Q

NFPA 1901 stopping distance

A

From 20 mph to stop in less than 35 ft

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23
Q

Air pressure build time for operations

A

60 seconds for operations

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24
Q

Air protection valve

A

Keeps air horns from honking if air below 80 psi

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25
Q

Stopping brake test

A

5 mph- apply firmly- stop in 20 ft

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26
Q

NFPA 1901 brake requirement

A

20 mph–stop under 35 ft

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27
Q

Cab lift items

A

Engine oil, TRANS, exhaust, air filter, coolant, batteries, steering fluid,
air dryer, belts, leaks, wiring

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28
Q

5 major crash reasons for apparatus

A

Backing, reckless public, excessive speed, lack of driving skill, poor design

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29
Q

Gear choice

A

200-300 RPM lower than recommended

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30
Q

Idling fuel consumption

A

¹/₂ gallon per hr

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31
Q

3 exceptions to being belted

A

Pt. care in ambulance
Loading hose on apparatus
Tiller training

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32
Q

NFPA 1500

A

No tailboard riding

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33
Q

DRIVER CONTROL FACTORS

A 
Aim high
Big picture
Eyes moving
Leave an out
Make sure u are heard and seen
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34
Q

Space between responding apparatus

A

300-500ft

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35
Q

Factors influencing stopping

A

Condition of driving surface
Speed
Weight
Cond/type of braking system

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36
Q

Snow and ice stopping distance

A

3-15 times longer

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37
Q

Factors influencing positioning

A

SOPs, water supply, rescue, attack method, exposures, wind, terrain, relocation potential.

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38
Q

Collapse zone

A

Minimum height of building

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39
Q

Outrun siren

A

Above 50 mph

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40
Q

Scene positioning

A 
Rescue
Attack method
SOPs
Water supply
Wind
Terrain
Relocation potential
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41
Q

Hard suction on hydrant

A

No

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42
Q

Intake length

A

10-50ft

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43
Q

Dual pumping vs tandem

A

Dual-intake to intake

Tandem- discharge to intake

44
Q

2 types of light and air

A

Cascade and air compressor

45
Q

Equipment Behind shielding engine distance

A

150-200 ft

46
Q

Water density

A

Weight per unit of volume
Cubic ft-62.5 lbs
Gallon 8.33 lbs

47
Q

Law of Specific Heat

A

Heat absorbing capacity

48
Q

Law of Latent Heat

A

Quantity of heat absorbed by a substance when it goes from liquid–>vapor

49
Q

Liquid—>vapor

A

Boiling point

50
Q

Water—>stream heat absorption

A

970 BTUs

51
Q

1 gallon to steam heat absorption

A

9346 BTU

52
Q

Pressure Principles

A

Perpendicular to the surface it acts on
At rest, same in all directions
Applied to confined fluid, transmits equally
Press of liquid in open container is proportional to depth
Open vessel proportional to density
Pressure of liquid on bottom of vessel is independent of shape

53
Q

Types of pressure

A 
Atmospheric 
PSIA
PSIG-included atmospheric w/pressure
Elevation-centerline of pump
Altitude- position above sea level
54
Q

Friction loss

A

Water molecules against each other
Hose lining and couplings
Sharp bends changes in hose size
Improper gasket size

55
Q

FL PRINCIPLES

A
  • All the same, FL varies directly with length
  • Hose size same, FL varies with velocity of flow p=2X FL=4X
  • Same discharge, FL varies inversely as the 5th power of diameter
  • Given flow velocity, FL is approx same
56
Q

Public water system

A

Direct pumping, Gravity, combo

57
Q

Residential hydrants

A

Mains 6”, 8” cross connect, not more than 600’

58
Q

ADC, MDC, PHC

A

Average daily consumption
Max daily
Peak hourly

59
Q

Nozzle streams

A

Solid, broken, fog

60
Q

Solid stream pressures

A

Handling-50 psi

Master- 80 psi

61
Q

Hand lines

A

³/₄”-3”

62
Q

Master streams pressures

A

Smooth bore- 80 psi

Fog- 100 psi

63
Q

Broken stream

A

Larger drops than fog
Cellar
Water curtain

64
Q

FACTORS INFLUENCING DISCHARGE PRESSURE

A
  • Amount of water discharging
  • Impeller speed
  • Entering water pressure
65
Q

Double suction impeller

A

Water enters from both sides to lower lateral thrust

66
Q

Canceling radial thrust

A

Water removed from 2 directions

67
Q

Capacity of first stage in a two stage pump

A

50-70%

68
Q

Volume setting required

A

When more than ²/₃ the rated capacity is needed

69
Q

Max transfer valve operation pressure

A

75 psi

70
Q

Pump packing

A

Rope fibers impregnated with graphite or lead

71
Q

Mechanical isolation of discharge and suction

A

No, velocity

72
Q

PTO

A

Separate idler gear
Independent speed from road gear
500 GPM from mounting stresses

73
Q

PTO gear ratio

A

Usually 1.5 times faster

74
Q

Pump piping hydro pressure

A

500 psi

75
Q

Tank piping capacity

A

500 GPM

76
Q

1500 GPM pump draft capacities

A

Max 2 suction lines

Max 6” x 10 ft

77
Q

2 1/2 discharges shall equal__________

A

Rated GPM of the pump

78
Q

Pressure control device

A

Must operate 3-10 seconds after pressure varies by 30 psi

79
Q

Relief valve components

A

Pilot valve
Pressure chamber
Spring
Diaphragm to separate

80
Q

Pressure rise and fall with relief valve spring

A

Pressure lower than spring—->main chamber

Pressure rises above spring—–>intake

81
Q

Intake relief valve protects against___________

A

Water hammer in LDH

82
Q

Electronic pressure governor

A

Connect to discharge manifold

Must be above 50 psi

83
Q

Type of priming pumps

A

Positive displacement, vacuum, exhaust

84
Q

Positive displacement priming types

A

Rotary vane/gears

Electric motor

85
Q

2 priming oil purposes

A

Seal and preservative

86
Q

Exhaust primer

A

Venturi like eductor

87
Q

Vacuum primer

A

Exhaust off engine

88
Q

Priming RPM

A

1000-1200

89
Q

Aux cooling devices

A

Marine- small tubes like flutes of stream broiler water passes
Immersion- goes through tube in coolant

90
Q

Override parking brake _________RPM

A

1300

91
Q

Class AA light blue hydrant

A

Above 1500 GPM

92
Q

Class A Green Hydrant

A

1000-1499 GPM

93
Q

Class B Orange Hydrant

A

500-999 GPM

94
Q

Class C Red Hydrant

A

Below 500 GPM

95
Q

With 3” supply no longer than _______ ft without pumping hydrant

A

300

96
Q

Draft site factors

A

Amt of water
Type of water
Access of water

97
Q

Caution draft water temps

A

Below 35 degrees or above 90

98
Q

Prime no longer than________

A

30 seconds

99
Q

Before pumping FDC confirm________

A

Actual fire

100
Q

PDP above ________not recommended

A

200 psi

101
Q

Dependable lift

A

At least 14.7

102
Q

Pressure correction

A

Lift + TFL

103
Q

Drafts sources

A

Pools
Cisterns
Ground reservoir
Private tank

104
Q

Tenders must have _________tank

A

External fill tank

105
Q

Dump valve capability

A

90% of the tank @ 1000 GPM

106
Q

Water shuttle best time saving

A

Filling and dumping times

107
Q

Tank fill on water tenders fills from _______of tank

A

Top

108
Q

IFSTA recommends _______ fill ________ at water shuttle.

A

Pumpers, tenders

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