Term
| Water supply systems originated when and by what company? |
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Definition
| 1800 by the Philadephia Water Company |
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Term
| What is a "Fire Plug" and why is it called that? |
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Definition
| It's a term for a fire hydrant and is called that beacuse old water mains were wood and had plugs in them for water supply access. |
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Term
| What three factors contribute to frication loss in pipe or hose? |
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Definition
1) Size of the pipe
2) Length of the pipe
3) Condition of the pipe |
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Term
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Definition
| It is a water distribution system where there are circulating feeds from several mains. |
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Term
| What is a "Circulating Feed"? |
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Definition
| A fire hydrant which recieves water from two or more directions. |
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Term
| What two catagories of valves are there? Which one does Oakland use the most? |
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Definition
| Indicating and Non-indicating. Oakland uses mostly non indicating valves. |
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Term
| During Zone to Zone pumping what color hydrant do you take a lead frm and what color hydrant to you lead to? |
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Definition
| Take the lead rom the Red hydrant (lower zone) and pump to the white hydrant (upper zone). |
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Term
| Hydrant static pressure can vary from what pressure to what pressure in a zoned system. |
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Definition
| From 40 psi at the top of a zone to 130 psi at the bottom. |
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Term
| Friction loss varies as the ______ of the velocity of the flow. |
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Definition
"Square". Double the velocity and you get 4x the friction loss.
*** Don't confuse this with doubling the pipe size and getting 6x the flow *** |
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Term
True or False:
Oakland Internation Airport hydrants are charged with salt water from the bay. |
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Definition
| False. The hydrants are charged with fresh water when not in use. When a hydrant flows, fire pumps inject sea water into the system. |
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Term
| The Fire Boat has a pump capacity of _____ GPM. |
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Definition
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