Chapter III Flashcards
What is the flow capacity of a Class C hydrant
-
The most important thing in a storage tank is its______
- capacity
How many hydrants are needed for a flow test
- Two…a pressure hydrant and a test hydrant
The Insurance Services Office (ISO) recommends that valves be placed so that if a break occurs, no pipe will be shut down at any given time that is longer than ____ ft in residential areas
- 800
What pipes should be 16 inches or larger in diameter
- Primary feeders
What are smaller pipes that connect to individual customers and to fire hydrants called, usually 8” or Larger
- Distributor mains
The Insurance Services Office (ISO) recommends that valves be placed so that if a break occurs, no pipe will be shut down at any given time that is longer than ____ for a primary feeder line
- 1/4 mile
The Insurance Services Office (ISO) recommends that valves be placed so that if a break occurs, no pipe will be shut down at any given time that is longer than ____ ft in commercial areas
- 500
If a hydrant has an outlet for large diameter hose, it is recommended that the pipe supplying the hydrant be at least _____ in diameter
- 6
According to NFPA 291 which part of the hydrant should be color coded
- The bonnet and caps
When experts figure the maximum daily consumption they look at a ___year period to find the day that the most water was used.
- 3
These feeders make the distribution system into a large interconnected grid
- Secondary feeders
