TB 12 AUTOMATIC SPRINKLER SYSTEMS Flashcards
BY FAR THE _____ ________ of all fire protection devices. (NFPA)
automatic sprinkler systems
_____ detection of fire and effective application of the available water supply are fundamental to _______ most fire losses
Early; minimizing
__%of all fires in sprinklered buildings are extinguished or “________” held in check by the sprinkler system.
96%; satisfactorily
Companies “shall”______& _______ into sprinkler system as soon as the need is evident.
hook up & pump
NBFU states, one of first alarm engines should __ _____ into FDC
“TWO” 2 1/2 LINES
PUMP OPERATORS should deliver____ psi to inlet if NO fire showing
100 psi
If obvious fire, and number of heads have opened, pump pressure should be increased too ____ psi
150 psi
Normally ____ lines can sufficiently extinguish fire in sprinklered building
1 1/2 lines
A list of sprinklered buildings in a district can be obtained from F-____, which are filed behind the F-___ in the company files.
F-316
F-173
“___ ____ _____” pre fire planning INSPECTIONS should take place to reaffirm the location of the FDC and Control Valves.
ON-THE-SCENE
WHAT 2 items should be inspected to see that they are in good working order and that valves are turned ?
- THREADS
- CAPS
Extreme caution must be exercised when
shutting down system after fire.
When ordered shutdown, what “shall” take place?
Firefighter shall remain at control valve to reopen without delay, if needed.
FF “shall”” remain at the control valve during shutdown until……
system is put back in service.
Sprinklers are more effective, while using less water, than a hose line. True False
True.
_____ ______ are designed to provide “inexpensive” protection for light hazard occupancies where not over 3 or 4 sprinklers are likely to operate
Junior system
Junior system is connected directly to service water supply through a __ ____ _____.
1 inch brass pipe.
Junior systems have what type of alarm?
electric Water Flow
Junior systems do Not have what?
FDC or Drain Valves
Junior Systems: ____ OR_____ loop “copper” tubing to sprinklers.
3/4” or 1”
Junior System: Sprinkler heads will discharge ___as much water as standard sprinkler
HALF
Junior Systems use ___ or ____ size orifice sprinkler heads
1/4” or 3/8”
how are junior system sprinkler heads identified?
“PINTLE” extending beyond the center of the deflector
Officer Check-List :
- should have list of all sprinklered buildings in the area with sketches showing what two things?
- Connection Locations
- Main Sizes
