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20 Cards in this Set
- Front
- Back
|
3 means of moving water
|
direct pumping
gravity system combination system |
|
|
hydrant that recieves water from 2 or more directions
|
circulating feed or looped line
|
|
|
A grid system consists of
|
Primary feeders
Secondary feeders Distributors |
|
|
recommended size for hydrant supply in residential area
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6" and grided by 8" cross mains at no moe than 600 ' intervals
|
|
|
recommended size for hydrant supply in commeercial area
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8" main with 8" mains every 600'
|
|
|
valves shoudl be operated at least __-times a year
|
once
|
|
|
2 types of valves
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indicating and non indicating
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|
|
private fire protection system usually use
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indicating valves
|
|
|
2 common indicator valves
|
PIV
OS&Y |
|
|
control valves in distribution systems are what kind
|
gate valve or butterfly
|
|
|
3 means of moving water
|
direct pumping
gravity system combination system |
|
|
hydrant that recieves water from 2 or more directions
|
circulating feed or looped line
|
|
|
A grid system consists of
|
Primary feeders
Secondary feeders Distributors |
|
|
recommended size for hydrant supply in residential area
|
6" and grided by 8" cross mains at no moe than 600 ' intervals
|
|
|
recommended size for hydrant supply in commeercial area
|
8" main with 8" mains every 600'
|
|
|
valves shoudl be operated at least __-times a year
|
once
|
|
|
2 types of valves
|
indicating and non indicating
|
|
|
private fire protection system usually use
|
indicating valves
|
|
|
2 common indicator valves
|
PIV
OS&Y |
|
|
control valves in distribution systems are what kind
|
gate valve or butterfly
|
