Driver Operator Ch 11-16

Front 1

tests have indicated that apparatus may override the parking brake system at engine speeds as low as ___

Back 1

1300 rpm

Front 2

if it appears that a pump will have to furnish more than 50% of its rated capacity, it should be put in _____ position

Back 2

parallel (volume)

Front 3

NFPA standard, recommended practice for fire flow testing and marking of hydrants.

Back 3

NFPA 291

Front 4

hydrant flow by colors
class AA light blue

Back 4

1500 gpm or greater

Front 5

hydrant flow by colors
class A Green

Back 5

1000-1499 gpm

Front 6

hydrant flow by colors
class B Orange

Back 6

500-999 gpm

Front 7

hydrant flow by colors
class C Red

Back 7

less than 500 gpm

Front 8

when using 2.5 or 3" lines to supply pumper off hydrant pressure, lines should be no longer than ____

Back 8

300ft

Front 9

if the master intake gauge drops below ___ do not increase the throttle further

Back 9

20 psi

Front 10

percentage method equation for additional water available

Back 10

percent drop=
(static-residual) (100)
---------------------------------
static

Front 11

if psi drop is equal to or less than the first digit of static pressure multiplied by 1, ______additional lines may be added

Back 11

three

Front 12

if psi drop is equal to or less than the first digit of static pressure multiplied by 2, ______additional lines may be added

Back 12

two

Front 13

if psi drop is equal to or less than the first digit of static pressure multiplied by 3, ______additional lines may be added.

Back 13

one

Front 14

the max amount of vacuum that most pumps develop is approx. ___"of mercury

Back 14

22"

Front 15

the best indication of cavitation

Back 15

lack of reacion on the pressure gauge to changes in the setting of throttle

Front 16

maximum theoretical lift

Back 16

33.8 ft

Front 17

there should be ___ft of water over and preferrably all around the strainer

Back 17

2ft

Front 18

low level strainers can draft water down to a depth of ___

Back 18

2"

Front 19

all fire pumps are rated to pump their capacity at ____ft of lift

Back 19

10

Front 20

maximum lift considered reasonable for most pumpers is ___'

Back 20

20ft

Front 21

at 20 ft of lift, the amount of water that can be supplied is only about ___% of the rated capacity

Back 21

60%

Front 22

the transfer valve should be in _____position for priming

Back 22

parallel (volume)

Front 23

most priming pumps are intended to work best when the engine is set between ___ and ___ rpm

Back 23

1000-1200

Front 24

vacuum is measured from ______to ______

Back 24

the surface of the water to the eye of the impeller

Front 25

if a prime has not been achieved in ___ stop priming

Back 25

30 seconds

Front 26

priming typically requires ___to___

Back 26

10-15 seconds

Front 27

a ____gpm rated pumper should supply the fdc for every ____sprinklers flowing

Back 27

1000gpm
50

Front 28

when charging a system, multistage pumps should be set to_____

Back 28

parallel (volume)

Front 29

general rule of thumb is to discharge ____into an FDC

Back 29

150 psi

Front 30

add ___psi to the desired nozzle pressure for each floor above the standpipe connection

Back 30

5 psi

Front 31

elevation difference between static water supply source and pump.

Back 31

lift

Front 32

at sea level a pump could theoretically lift water ____

Back 32

33.8 ft

Front 33

every ____'of altitude atmospheric pressure drops ____

Back 33

1000'
.5psi

Front 34

the maximum height to which any amount of water can be raised through hard intake hose to the pump.

Back 34

maximum lift

Front 35

in most circumstances, maximum lift is no more than ___

Back 35

25'

Front 36

maximum lift calculation

Back 36

L=1.13Hg

Front 37

the height a column of water can be lifted in sufficient quantity to provide a reliable flow

Back 37

Dependable lift

Front 38

every pump in good repair should have a dependable lift of at least____'

Back 38

14.7 ft

Front 39

Pumping apparatus have their fire pumps rated when drafting from a lift of ___ through ____ of hard intake hose.

Back 39

10ft, 20ft

Front 40

the pump is only able to deliver __%of its capacity at a __' lift and ___% at a ___'lift

Back 40

70% at 15'
60% at 20'

Front 41

pressure correction formula

Back 41

lift+total intake hose friction loss divided by 2.3

Front 42

net pump discharge pressure at draft equation

Back 42

NPDP draft= PDP+intake pressure correction

Front 43

two primary types of static water supply sources firefighters can draft from

Back 43

natural and man made

Front 44

Natural static supply water sources include ___,___,____,____,_____

Back 44

lakes, ponds, streams, rivers, and oceans

Front 45

when evaluating a static supply source what two factors must be considered.

Back 45

adequacy and accessibility

Front 46

adequacy of small stream equation

Back 46

Q=area x velocity(fpm) x 7.5

Front 47

rule of thumb when evaluating pond and small lake capacity.

Back 47

every 1 foot of depth for an area of 1 acre provides 1,000gpm fo 5 hours

Front 48

a good rule of thumb for drafting with barrel type strainer is ...

Back 48

a depth of 2 feet of water above and below

Front 49

low level strainers are most commonly used to draft water from __________ and can draw water from down to ________

Back 49

portable water tanks, 1 to 2 inch

Front 50

floating strainers also allow safe drafting from water as shallow as ____

Back 50

1 ft

Front 51

underground water storage receptacles usually found in areas not serviced by hydrants

Back 51

cisterns

Front 52

cisterns vary in capacity from ____to____

Back 52

10,000-100,000

Front 53

________ are commonly found on large residential, industrial, and agricultural properties.

Back 53

private water storage tanks

Front 54

private water storage tanks range in size from ______to_______

Back 54

several hundred gallons to many thousands of gallons.

Front 55

man made impoundments that have the same characteristics of a pond or small lake

Back 55

ground reservoirs

Front 56

ground reservoirs typically contain ________of water

Back 56

many millions of gallons

Front 57

square/rectangular pool equation

Back 57

capacity=L x W x D(depth) x 7.5

Front 58

round pool equation

Back 58

capacity= pie r squared x depth x 7.5

Front 59

agriclutural irrigation systems may flow in excess of _____

Back 59

1,000 gpm

Front 60

irrigation water is generally transported by two methods:____ or _____

Back 60

open canals and portable pipes

Front 61

during a relay, the engine with the largest pump capacity should be where?

Back 61

at the source

Front 62

hose tenders usually cary ____ of LDH

Back 62

a mile or more

Front 63

intake pressure relief valves that are adjustable should be set within ___psi of the static pressure of the water sytem supplying the pumper or ___ psi above the discharge pressure of the previous pumper in the relay

Back 63

10, 10

Front 64

in the most basic sense, relay operation is based on two things: ________________________

Back 64

amount of water required at the emergency
distance from emergency scene to the water source

Front 65

all pumpers are rated to pump their maximum volume capacity at a net pump discharge pressure of ____psi at draft

Back 65

150 psi

Front 66

hose should not be pumped at pressures that exceed ____% of the annual service test pressure

Back 66

90

Front 67

Flowing a predetermined volume of water for the maximum distance that it can be pumped through a particula hose lay.

Back 67

maximum distance relay method

Front 68

pumpers are rated to flow ___% of their volume at ___psi and ___% of their volume at ____psi

Back 68

70% at 200psi
50% at 250 psi

Front 69

relay method that provides the maximum flow available from a particular relay setup by using a constant pressure in the system

Back 69

constant pressure relay method

Front 70

driver operators in a constant pressure relay should continue to adjust their PDP to ____psi

Back 70

175

Front 71

if the intake pressure drops below ___psi there is a danger of cavitation.

Back 71

20 psi

Front 72

the maximum capacity of a relay is determined by what

Back 72

the capacity of the smallest pump and the smallest hoseline within the relay.

Front 73

it is desirable to maintain an intake pressure of ___ to ___psi

Back 73

20-30

Front 74

if the attack pumper is equipped with an adjustable intake relief valve, set it between ___ an ___

Back 74

50-75 psi

Front 75

as long as the intake pressure does not drop below ____ or increase above _____ no action should be required

Back 75

10 psi, 100psi

Front 76

relay operations should be shut down from the ______ first

Back 76

fire scene

Front 77

pumpers used in a water shuttle operation are most commonly the ______ type

Back 77

standard triple combination pumper

Front 78

fill site pumpers should have a minimum pump capacity of ______

Back 78

1000 gpm

Front 79

NFPA 1901 requires tenders to be designed to be filled at a rate of at least ______

Back 79

1000 gpm

Front 80

specially designed fill site pumpers have capacities to _____ at a max of _____psi

Back 80

1600 gpm, 80 psi

Front 81

the majority of water tenders in use today carry from ____to____

Back 81

1500-3000 gallons

Front 82

single rear axle apparatus are limited to a max tank capacity of _____

Back 82

1500 gallons

Front 83

tenders with water tanks less than ____ and rapid unloading capabilities are the most effective in water shuttles

Back 83

2500 gallons

Front 84

some tenders with capacities in exess of _____ are used as dump sites instead of portable tanks

Back 84

2500 gallons

Front 85

tenders with ____ pumps are often called _______

Back 85

750 gpm or larger, pumper-tenders

Front 86

vacuum tenders are self filling from a static water supplt sourceat a rate up to ____ with lift capability up to _____

Back 86

2000 gpm, 22 feet

Front 87

vacuum tenders have discharge rates up to

Back 87

1750 gpm

Front 88

water tenders equipped with a pump must have a tank to pump line capable of supplying the pump with ___ until at least ____% of the tank is emptied

Back 88

500gpm, 80%

Front 89

water tender external fill connection should allow tank to be filled at a minimum rate of ______gpm

Back 89

1000gpm

Front 90

external fill connection should be equipped with a ____,____,&______

Back 90

valve, strainer, and 30 degree elbow

Front 91

vsalves that are ___or larger must be the slow closing design

Back 91

3"

Front 92

water tenders must have at least one large tank discharge that is capable of emptying ___% of the tank volume at an average rate of _____

Back 92

90%, 1000gpm

Front 93

because most water tender tanks are less than ___'tall, the back pressure created by a nearly full tank on a bottom fill inlet is less than ___

Back 93

6', 3psi

Front 94

gravity dumps usually employ ___" or larger round or square piping with a valve that extends to the exterior

Back 94

8"

Front 95

ISO gives extra credit ratings to jurisdictions that have automatic aid agreements for ________

Back 95

water shuttle operations

Front 96

when possible, select a fill site that is capable of supplying at least _____

Back 96

1000 gpm

Front 97

when a water supply group is established, the person in charge is known as ______

Back 97

water supply group supervisor

Front 98

if the IC initiates an operations section, then the _______reports to the operations section chief

Back 98

water supply supervisor

Front 99

when two or more shuttles are needed, a water supply branch may be established. The person in charge of this area is called _______

Back 99

water supply branch director

Front 100

in line water wiphons should be operated at _____ and provide ___to____ through a ___" pipe

Back 100

150 psi, 700-800gpm, 4"

Front 101

when a water tender pumps its tank directly into the attack pumper

Back 101

direct pumping operations

Front 102

a single portable tank works on fires requiring a flow rate of _____

Back 102

less than 300 gpm

Front 103

it is recommended that portable tanks be at least _____ larger than the tank on the apparatus carrying it.

Back 103

500 gallons

Front 104

jet siphons have an inlet for connection of ____ or larger hose

Back 104

1 1/2"

Front 105

flow rating for tender calculation

Back 105

GPM= tank size-10%GPM divided by trip time

Front 106

travel time formula

Back 106

travel time in minutes=.65 + (1.7) (distance in miles)

Front 107

handling time formula

Back 107

handling time=fill site time +dump site time

Front 108

tender flow rate calculation

Back 108

water tank size in gallons -10% divided by travel time+ handling time

Front 109

to recieve iso full credit, the first water tender must begin dumping wate within ___ of the first pumpers arrival and continue to be supplied with a minimum of ____ for _______

Back 109

5 minutes
250 gpm
2 hours

Front 110

mechanical foams must be ___ and ____ before they can be used

Back 110

proportioned, aerated

Front 111

foam proportioner

Back 111

device that introduces foam concentrate into the water stream

Front 112

hydrocarbon fuels such as ___________________________________ are petroleum based and float on water

Back 112

crude oil, fuel oil, gasoline, benzene, naphtha, jet fuel, kerosene

Front 113

polar solvent fuels such as ___________________________________ are flammable liquids and mix with water

Back 113

alcohol, acetone, lacquer thinners, ketones, and esters

Front 114

class b foam is effective on _____ fuels because it will float on the surface

Back 114

hydrocarbon

Front 115

what 3 ways does foam work?

Back 115

seperates, cools, suppresses

Front 116

most firefighting foam concentrates are intended to be mixed with ______ water

Back 116

94 to 99.9%

Front 117

the _____method of proportioning foam uses the pressure energy in the stream of water ti induct foam concentrate into the fire stream

Back 117

induction

Front 118

the ___ method of proportioning foam uses an external pump or head pressure to force foam into the stream

Back 118

injection

Front 119

foam storage\
___gallon pails

Back 119

5

Front 120

foam storage ___gallon barrels

Back 120

55

Front 121

foam storage
____gallon totes

Back 121

275

Front 122

foam concentrate tanks on municipal pumpers range from __to ___

Back 122

20-200 gallons

Front 123

foam pumpers and tenders may carry ___ gallons of foam concentrate ot more

Back 123

8000 gallons

Front 124

class A foam has been used since the ____

Back 124

1940's

Front 125

shelf life of class A foam can be as much as ___

Back 125

20 years

Front 126

fire attack and overhaul with standard fog nozzle--- ___% to ___% concentrate

Back 126

.2-.5%

Front 127

exposure protection with standard fog nozzle---___to___% concentrate

Back 127

.5-1%

Front 128

any application with air aspirating foam nozzle---___to___ concentrate

Back 128

.3-.7%

Front 129

any application with CAFS system---____to____concentrate

Back 129

.2-.5%

Front 130

the application rate of class A foam is the same as the ____________ of water

Back 130

minimum critical flow rate

Front 131

protein based foams have a normal shelf life of about ____

Back 131

10 years

Front 132

synthetic based foams will have a shelf life of generally _________

Back 132

20-25 years

Front 133

class B foams are mixed in prportions of ___to___

Back 133

1 to 6%

Front 134

class B foam is usually __to__ on hydrocarbons and ___to___ on polar solvents

Back 134

1-3%
3-6%

Front 135

MEDIUM EXPANSION FOAMS ARE TYPICALLY USED AT __,___ OR___ concentrations

Back 135

1 1/2, 2, 3%

Front 136

NFPA standard for low, medium, and high expansion foam.

Back 136

NFPA 11

Front 137

low expansion foam has an air/solution ratio up to ____

Back 137

20:1

Front 138

medium expansion foam has an air/solution ratio of ___to___ through hydraulically operated nozzle style delivery devices

Back 138

20:1- 200:1

Front 139

high expansion foam air/solution ratio is ___to___

Back 139

200:1 to 1000:1

Front 140

alcohol resistant fluoroprotein foam maintains its alcohol resistive properties for about ___

Back 140

15 minutes

Front 141

_______ is the most commonly used foam today

Back 141

AFFF

Front 142

on most polar solvents AFFF's are used at ___to____

Back 142

3-6%

Front 143

the pressure at the outlet of the eductor must not exceed ___to___% of the eductor inlet pressure

Back 143

65-70%

Front 144

foam solution concentrate is only correct at the rated inlet pressure of the inductor, usually ___to____

Back 144

150-200 psi

Front 145

the foam concentrate inlet to the eductor should not be more than___' above the surface of the foam concentrate

Back 145

6'

Front 146

self educting master stream nozzles are used when floes in excess of ___ are required

Back 146

350 gpm

Front 147

self educting master stream nozzles are available with flows up to _____gpm

Back 147

14,000 gpm

Front 148

the jet ratio controller allows the foam concentrate to be up to ____' away from the self educting master stream nozzle.

Back 148

3000'

Front 149

The JRC allows an elevation change up to ___'

Back 149

50'

Front 150

the JRC proportions the concentrate to ___%

Back 150

66 1/2%

Front 151

installed in line eductors are most commonly used to proportion class __ foams

Back 151

B

Front 152

variable flow rate direct injection systems provide foam concentrates from ___to___

Back 152

0.1-3%

Front 153

smoothbore nozzle foam application is limited to _______

Back 153

class A CAFS

Front 154

expansion ratios using fog nozzles are between ___and___

Back 154

2:1 and 4:1

Front 155

the only type of nozzle that can be used with protein and fluoroprotein foams

Back 155

air aspirating foam nozzle

Front 156

NFPA standard on foam chemicals for fire in class A fuels

Back 156

NFPA 1150

Front 157

when used for firefighting durable agents are normally applied at a ratio of _____

Back 157

1:100

Front 158

when used for line construction durable agents are normally applied at ___to____

Back 158

1 1/2 to 2%

Front 159

when used for structure protection, durable agents are normally applied at ___to___

Back 159

2 to 3 %

Front 160

NFPA _____ requires that driver operators be able to perform functional tests on foams systems

Back 160

NFPA 1002

Front 161

NFPA ____, _____, &_____ are used as a basis for most bid specs.

Back 161

NFPA 1901, 1906, and 414

Front 162

apparatus must accelerate to _____from a standing start within ____

Back 162

35mph, 25 seconds

Front 163

apparatus must achieve a minimum top speed of ___

Back 163

50 mph

Front 164

apparatus must come to a full stop from ___mph within ____feet

Back 164

20 mph
35 ft

Front 165

pumps are tested hydrostatically at ___ for ___

Back 165

250 psi, 3 minutes

Front 166

apparatus with less than 750 gpm are required to undergo the same tests with the exception of the __________

Back 166

pumping engine overload test

Front 167

NFPA standard for service tests of fire pump systems on fire apparatus

Back 167

NFPA 1911

Front 168

when using a static water supply source the water must be at least __ft deep and the strainer must be submerged at least __ft below the water. the surface of the water may be no more than __ft below the centerline of the pump intake, and ___ft of hard intake hose should be used for testing

Back 168

4ft
2ft
10ft
20ft

Front 169

air temp during testing should be between ___ and ___

Back 169

0-100 degrees F

Front 170

water being used for testing should be between ___and___

Back 170

35 and 90 degree F

Front 171

barometric pressure should be at least ______ corrected at sea level

Back 171

29"Hg

Front 172

__"drop in barometric pressure reduces a pumpers maximum possible static lift by about ___'

Back 172

1"
1'

Front 173

lifting ability drops by about ___ per ___ft of elevation increase

Back 173

1foot
1,000 ft

Front 174

gasoline engines have ___less efficiency per ____

Back 174

3.5%
1000ft increase in altitude

Front 175

pump service tests are conducted at ___,___,___,&____ net pump discharge pressure

Back 175

150, 165, 200, & 250 psi

Front 176

pressure correction formula

Back 176

lift + intake hose friction loss divided by 2.3

Front 177

NFPA 1911 requires that all gauges have been calibrated withing __days of testing

Back 177

60

Front 178

pump intake pressure gauge should have a range of ___to___vacuum and ___to___ for compound

Back 178

30 in Hg to 0
30in Hg to 150 psi

Front 179

pump discharge gauge should have a range from ___to___ psi

Back 179

0-400 psi

Front 180

pitot tube should have a range of ___to___

Back 180

0-160 psi

Front 181

vacuum test
no more than ___ of vacuum should be lost in ___ minutes

Back 181

10 in
5 minutes

Front 182

pumping test
___psi for __minutes
___psi for ___minutes delivering 70% capacity.
___psi for ___ minutes delivering 50% capacity

Back 182

150 psi for 20 minutes
200 psi for 10 minutes
250 psi for 10 minutes

Front 183

pressure control test
pump discharge pressure should rise no more than ___ when all gauges are closed

Back 183

30 psi

Front 184

any gauges that are off by more than ___ should be recalibrated, repaired, or replaced

Back 184

10 psi

Front 185

the flow measured from the nozzle and the flowmeter should not be more than ___% off

Back 185

10

Front 186

the fire pump must test to at least ___% of its original capabilities to remain in service with the same ratings

Back 186

90%

Front 187

foam solution refractivity test is used for ____and ____foams

Back 187

protein and fluoroprotein