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Plans Examiner 2023 Complete 
Basically, there are ____ types of foam fire extinguishing systems. Ans- 5 
A foam fire-extinguishing system must have an adequate water supply, foam concentrate supply, piping 
system, ________ and form discharge devices. Ans- proportioning equipment 
Where topside application of foam may not be effective because of wind or heavy fire conditions, a 
______ may be used. Ans- subsurface injection system 
High expansion foam is designed for local application or tota...
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