Pump Ops

Question 1

What are the most basic functions of the fire service?

Answer 1

The ability to carry water and provide fire streams

Question 2

Minimum tread depth

Answer 2

4/32”

Question 3

What is the primary consideration for engine placement?

Answer 3

Safety of the patient and responder

Question 4

Where do engines primary water come from

Answer 4

Hydrants

Question 5

What provides hydrant pressure?

Answer 5

pressure from water towers

Question 6

City hydrant static pressure
And color

Answer 6

Approximately 70psi
Yellow

Question 7

Private fire hydrants psi in industrial areas

Answer 7

Red
Static pressure excess of 175

Question 8

Private (apartment) static pressure fir hydrants

Answer 8

approximately 70psi

Question 9

How many tank pump valves do JFRD engines has?

Answer 9

3-4

Question 10

Flow from the booster tank is limited to how many GPM’s

Answer 10

700-800gpm

Question 11

What type of water pumps do JfrD have?

Answer 11

Centrifugal pumps

Question 12

What are centrifugal pumps rated at?

Answer 12

1500,1750,2000

Question 13

What is the volute?

Answer 13

Direct pressurize water into the discharge manifold

Question 14

What are the three positions of the pump shift?

Answer 14

Road
neutral and pump

Question 15

What is the internal pressure relief valve in PIV/BIV are preset to

Answer 15

150psi

Question 16

The electric front and rear intake valve take how many seconds to fully open or close

Answer 16

15-20

Question 17

What are the most commonly used valves

Answer 17

Tank to pump
Tank to fill

Question 18

What does The master discharge gauge reads?

Answer 18

The discharge manifold pressure

Question 19

Compound gauge measure in

Answer 19

(Inhg or inches and mercury)

Question 20

What do the vacuum scale reads

Answer 20

0to -30inhg

Question 21

What is another name for the electric primer?

Answer 21

Rotary vane
Positive displacement pump

Question 22

What are the two alternative methods for bleeding air from the pump?

Answer 22

deck gun
An opening a valve tank to fill

Question 23

What does the recirculator do?

Answer 23

Pump water to the booster tank will flow less than 25 GPM and remove hot pump water to be replaced with cool water from the supply
Use when hose lines are charged but not flowing

Question 24

Engine cooler or auxiliary cooler does what

Answer 24

Prevent overheating while the pump is operating open is valve to discharge cool pump water through the radiator

Question 25

PSi mode is considered to be what for another name

Answer 25

Cruise control

Question 26

What will the discharge pressure be at idle?

Answer 26

30-40psi

Question 27

What is class A foam

Answer 27

It is educated at 1/4% 1/2% and 1% It’s a wetting agent that the surface tension of water Not compatible with class B foam

Question 28

What’s class B foam

Answer 28

Educated at 3% Used on flammable liquid fires and spill Effective on hydrocarbon

Question 29

How many tankers are dispatched to all structure fires

Answer 29

3 tankers

Question 30

How much gallons of water are in tankers

Answer 30

2500gallons

Question 31

How long does it take to dump 2500 gallons of water from quick dump valve

Answer 31

2-3 minutes

Question 32

What is the recommended PDP for tanker filling?

Answer 32

100psi

Question 33

What’s another name for volume mode

Answer 33

Parallel or capacity

Question 34

What are purple hydrants for ?

Answer 34

Irrigation not for fire fighting Also for maintenance flushing

Question 35

How much do 1 gallon of water weigh

Answer 35

8.35LBs

Question 36

What is volute

Answer 36

The chamber around a pump impeller converts water velocity to pressure

Question 37

What is the 3 primary sections of the fire pump

Answer 37

Intake manifold Discharge Centrifugal pump assembly

Question 38

What prevents a continuous rise and discharge pressure

Answer 38

Slippage

Question 39

What are the 3 positions of the pump shift

Answer 39

Road Neutral Pump

Question 40

What does the pump test measure in

Answer 40

Volume

Question 41

In pressure mode Each impeller provides pressure in

Answer 41

Series

Question 42

What is the volume position called

Answer 42

Parallel or capacity

Question 43

What effects discharge Pressure once the PDP set?

Answer 43

The opening and closing of nozzles

Question 44

What will require the engineer to change to RPM mode?

Answer 44

Pump operations that exceeds 300 psi

Question 45

While in relay pumping what apparatus needs to only operate in PSi mode

Answer 45

The attack engine

Question 46

How should all valves be operated

Answer 46

Slowly

Question 47

What is the practical limit of a 5” hose

Answer 47

1600 gpm

Question 48

What is the bread and butter attack line of Jfrd?

Answer 48

1 3/4 spec 1.88 loaded In the preconnect

Question 49

What is the maximum height for drafting?

Answer 49

25 feet

Question 50

When does residual pressure display on the intake gauge

Answer 50

When the pump is under pressure From a hydrant, relay engine or tanker

Question 51

What is the preferred intake when laying out to another engine?)

Answer 51

Steamer(through the piv or biv

Question 52

Jfrd tankers are specified to flow

Answer 52

1000gpm

Question 53

Engine and tanker rpm preset

Answer 53

1100

Question 54

What are the RPM for a booster line

Answer 54

13,25,40,60

Question 55

What are 2 1/2 used for

Answer 55

Standpipe Ground monitoring Connection to hydrant

Question 56

Practical volume of 5”

Answer 56

1600

Question 57

What is the psi preset for engine

Answer 57

110psi

Question 58

What is the preset for tankers

Answer 58

50psi

Question 59

What is the preset for both engines and tankers while in rpm

Answer 59

1100 rpm

Question 60

What is the discharge pressure at idle

Answer 60

30-40psi

Question 61

What are booster line gpm settings

Answer 61

13,25,40,60

Question 62

What is a soft intake hose

Answer 62

Red in color and 25ft in length Will flow in excess of 2000 gpm

Question 63

Ground ladders

Answer 63

24ft extension ladder 14ft roof ladder 10ft attic ladder

Question 64

Extrication equipment chain length

Answer 64

6ft 12ft 15ft

Question 65

How long do you press the prima button on a 1750 to 2000gpm pump

Answer 65

90sec

Question 66

How much gallons of water do JFR tankers carry?

Answer 66

2500

Question 67

How much gallons of water do basin carry

Answer 67

3000

Question 68

What are the two modes of a governor?

Answer 68

Rpm Psi

Question 69

The diameter of the intake pipe is determined by the ?

Answer 69

Rated capacity