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CHAPTER 6 SPRINKLER AND STANDPIPE
SYSTEMS (ACTUAL - QUESTIONS
WITH ANSWERS
The size of the piping in risers depend on the - Answers___Distance between the pump and the heads and the total number of heads that serve on that line
The type of occupancy - Answers___Determine at what temperature the sprinkler heads will be activated The pump needs to be supplied at least two water mains when it is connected only to the - Answers___Domestic water supply
If only one Watermain is available, and elevated holding tank is required. This tank must be large enough to supply the standpipe system for - Answers___Minimum of 30 minutes
Class one riser size - Answers___Minimum four-inch any building less than 100'.....6" minimum on buildings over 100 feet
Class two riser size - Answers___Under 50 feet, 2 inch minimum. Over 50ft 2 1/2 inch minimum
Class III riser size - Answers___Same as class one
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CHAPTER 6 SPRINKLER AND STANDPIPE
SYSTEMS (ACTUAL - QUESTIONS
WITH ANSWERS
Pressure reducers - Answers___Device is designed to keep the flow pressure low enough civilians can handle the hose line into ensure that pressures do not become too extreme for fire service useFusible link - Answers___Has two small arms placed so they blocked the water from flowing
Solder - Answers___Designed to melt at predetermined temperatures, to fusible links separate, releasing the arms and allowing water to flow freely
Frangible bulb - Answers___Glass bowl of inserted into place in the arms to keep water from flowing is filled with liquid and partial with air,as temperatures increase, it expands breaking the glass
Bronze - Answers___Ceiling tip 100°, solder temp 155-165
White - Answers___Ceiling temp 150°, solder temp 212°
Blue - Answers___Ceiling Temp 225°, solder temp 286°
Red - Answers___Ceiling temp 300°, solder temp 360°
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