water supply

Question 1

what are the water supply system components?

Answer 1

source, treatment facility, movement of water, and water distribution

Question 2

what are the ways of moving water?

Answer 2

gravity, direct pumping, and combination

Question 3

what are the three water distribution types?

Answer 3

primary feeders, secondary feeders, and distributers

Question 4

how far should hydrants be placed in high value districts?

Answer 4

no more than 300ft

Question 5

how far apart should intermediate hydrants be placed?

Answer 5

350-400ft

Question 6

3 key components to water shuttle

Answer 6

attack, fill, and mobile apparatus

Question 7

four types of methods of tankers to unload water are

Answer 7

gravity dumping, jet dumps, apparatus mounted pumps, and combination

Question 8

For relay what are the factors that set the amounted of pumpers and distance between them?

Answer 8

volume of water needed, distance from source to fire, type/size of hose available, amount of hose available, and pumper capacities

Question 9

NFPA 1901 requires of much soft or hard intake hose on a pumper?

Answer 9

either 15ft of large soft intake hose or 20ft of hard intake hose

Question 10

How much supply hose is required on apparatus? What size hose?

Answer 10

800ft of 2.5-6in

Question 11

How much attack hose is required on apparatus? What size?

Answer 11

400ft of 1.5, 1.75, or 2 inch hose

Question 12

how many gpm does a 1.5in hose flow at?

Answer 12

40-125 gpm, 1-2 people

Question 13

how many gpm does a 1 3/4in hose flow at?

Answer 13

40-175 gpm, 2 people

Question 14

how many gpm does a 2in hose flow at?

Answer 14

100-250 gpm, 2-3 people

Question 15

whats the NFPA standard on hose?

Answer 15

NFPA 1961

Question 16

whats the NFPA standard on hose testing?

Answer 16

NFPA 1962

Question 17

four types of lugs

Answer 17

pin, rocker, recessed, extended handle lugs

Question 18

six damages that can occur to fire hose?

Answer 18

mechanical, thermal, organic, chemical, corrosion, and age deterioration

Question 19

What’s a hose appliance?

Answer 19

any piece of hardware used in conjunction with fire hose for the purpose of controlling the flow of water

Question 20

four types of valves

Answer 20

ball, gate, butterfly, and clapper

Question 21

whats a fitting?

Answer 21

used for connecting hoses of different sizes and thread types

Question 22

five types of fittings/adapters?

Answer 22

double male double female, reducers, elbows, hose caps, hose plugs.

Question 23

types of hose clamps?

Answer 23

screw down, press down, and hydraulic press

Question 24

how far does hose clamp need to be applied from apparatus/ and coupling?

Answer 24

20ft from apparatus and 5ft from coupling

Question 25

general range of pre connected hose attack loads?

Answer 25

50-250ft