Driver Test

Question 1

If the incoming pressure is __ the pump should be in pump gear.

Answer 1

50

Question 2

Which intake can receive the maximum flow of water and why

Answer 2

The side or rear at 1750 GPM

Front intake 900 GPM because of the turns and piping to get to the pump.

Question 3

Maximum safe PDP

Answer 3

250

Question 4

Akron Mecury Monitor flows how many GPM

Answer 4

500

Question 5

Smooth bore 1 3/8 on the mercury monitor is ___ psi

Fog nozzle

Answer 5

80

100

Question 6

Maximum inlet pressure for Mercury monitor ___

Answer 6

150

Question 7

Mercury monitor has a ___ inlet and outlet ___

Answer 7

2 1/2

2 1/2

Question 8

Appliance loss for Mercury monitor is __

Answer 8

10 psi

Question 9

Combination monitor are fixed to the pumper but can be detached and connected to a ground mount

Smooth bore can flow ______ at ___psi

Fog nozzle can flow _____ at ____ psi

Answer 9

500-1250 GPM, 80 psi

350-1250 GPM 100 psi

Question 10

Anything that affects movement of water is ___ ____

Answer 10

Friction loss

Question 11

Common causes of friction loss

Answer 11

Kink
Nozzle 
Appliances 
Pump pumping
Diameter restriction 
Delaminatung of hoses

Question 12

Appliance loss
Anything over 350 gpm is appliance loss of

Ladder pipes loss of

Master streams except for the mercury monitor

Answer 12

10 psi

25 psi

25 psi

Question 13

A column of water one foot high exerts a pressure of ___ at its base

Answer 13

0.434 psi

Question 14

PDP formula

Answer 14

NP+FL+AL+EP

Question 15

RP is for ____

NP is for _____

Answer 15

20 supply

50 attack

Question 16

JS-10 air aspirating has a rating of ___ gpm at ___ psi

Answer 16

100 & 100

Question 17

JS-10 is not or does come with a bale.

Answer 17

No, use the break away from the Akron Assault Nozzle

Question 18

Foam Eductor flow __ to ___ gpm with a pump discharge pressure of a ___ psi of the eductor

Answer 18

95 to 125 and 200

Question 19

JS-10

The nozzle should not be more than _ feet above the eductor

Answer 19

5

Question 20

All Fairfax county pumpers carry a minimum of __ gallons of foam.

Answer 20

40

Question 21

Compressed Air Foam Systems CAFS units

Answer 21

12, 16, 20, 41

Question 22

Recommend CAFS only be used in lines up to ___ in length for maximum effectiveness.

Answer 22

250’

Question 23

Relays are defined as ___ or more pumpers in line between the water source and nozzle

Answer 23

Two

Question 24

Relay operations

Initially al 4” supply lines should be charged to a minimum starting pressure of

Answer 24

50psi

Question 25

All 3” lines should be charged to a minimum starting pressure of ___ psi

Answer 25

100

Question 26

If a 4” and 3” supply lines are used together they should be charged at a minimum starting pressure of ___ psi

Answer 26

100

Question 27

Most Fairfax county pumpers are rated for ___ gpm per minute

Answer 27

1500

Question 28

Most Fairfax county fire hydrants can deliver a minimum of ____ gpm.

Answer 28

1000

Question 29

Sprinklers system should be charged at ___ psi

Answer 29

150

NOTE
This pressure is capable of providing adequate supply to the system without over pressurizing the system

Question 30

Combination sprinkler systems are those systems that use the same piping for both

Answer 30

Standpipe and sprinklers

Question 31

Elevated Master Streams

A minimum of __ LDH line or ___ supply lines should be used to supply the aerial device.

Answer 31

1 & two 3”

Question 32

The are four factors that will determine the correct PDP when supplying an aerial device

Answer 32

NP
AL
EP
FL