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RTI of a standard sprinkler - CORRECT ANSWER 80
Sprinkler system with open heads - CORRECT ANSWER Deluge system
Freezing point of antifreeze solutions - CORRECT ANSWER Hydrometer or refractometer
Color required for sprinkler and standpipe risers per local law 58/2009 - CORRECT ANSWER
Yellow
Distance for hanger assembly to center line of an upright sprinkler head - CORRECT ANSWER 3
inches
Location of the automatic ball drip - CORRECT ANSWER Between lower check valve and fire
department connection
, Purpose of a ball drip - CORRECT ANSWER To prevent freezing in the line
Build up of foreign matter on a sprinkler head - CORRECT ANSWER Loading
When a sprinkler head opens - CORRECT ANSWER It is said to be fused
Minimum air pressure inside a pressure tank - CORRECT ANSWER 75 psi
Height a gravity tank should be above highest sprinkler heads it supplies - CORRECT ANSWER
25 feet
Frequency for replacing gauges - CORRECT ANSWER Every 5 years
Number of spare sprinkler heads required when under 300 sprinklers - CORRECT ANSWER 6
Number of spare sprinkler heads required when there are 300 to 1000 sprinklers - CORRECT
ANSWER 12
Number of spare sprinkler heads required when there are over 1000 sprinklers - CORRECT
ANSWER 24
Year all sprinklers prior to which shall be replaced - CORRECT ANSWER 1920
GPM at which house pumps fill the gravity tank - CORRECT ANSWER 65 gpm