Shared Flashcard Set

Details

0701
LP 511 High Rise Water Systems
17
Other
Professional
10/16/2007

Additional Other Flashcards

 


 

Cards

Term
What are the 4 basic types of high rise water systems? (Give the dates)
Definition
  1. Dry Pipe             Pre 1960
  2. Wet Standpipe    
  3. Combination       1960-1974
  4. Combined           Post 1974
Term
For DRY standpipe systems buildings constructed prior to 1960 were limited to ________.
Definition
150 ft or 13 stories
Term

WET Standpipe systems are required in buildings ______ or more stories in height.

Definition

3 (4 or more after 1983)

Term
How is water supplied to WET standpipe systems?
Definition
  1. domestic water
  2. gravity feed
  3. combination standpipe systems
Term
What supplies the system pressure to a COMBINATION standpipe system?
Definition

Fire PUMP

Term
Attached to outlets to prevent water from a leaking valve from entering the hose while while stored in the hose cabinet.
Definition
Dripcock
Term
Designed to restrict the flow of water supplied at a particular outlet.
Definition
Orifice Plates
Term
Orifice plates are designed to flow _______ GPM with _______ pounds of nozzle pressure.
Definition
200 GPM
45 lbs.
Term
Can you get the required nozzle pressure of 75 PSI if you fail to remove to orifice plate?
Definition
NOPE
Term
How are size of the Orifice plate determined?
Definition
static pressure on the SUPPLY side
Term
Used to prevent backflo in the domestic system.
Definition
Clapper valves
Term
Used to make up minor losses in the system pressure and prevents the main pump from continously starting and stopping.
Definition
Jockey pumps
Term
Combined sprinkler systems are found in buildings constructed after 1974 that exceed _____ ft in height.
Definition
75
Term
Pressure Reducing Valves (PRV) are ised in buildings with systems ___________psi or more?
Definition
150
Term
PRV are pre-set to a pressure of _____________psi at ________ GPM?
Definition
80-125 PSI
300 GPM
Term
What does the LAFD require from PRV's?
Definition
300GPM at 100PSI
Term
A "Looped System" is found in buildings that were constructed between 1983 and 1988. The water from a given sprinkler head id delviered from ?
Definition
2 or more risers
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