Issue 26 and Volume 73.

QUESTIONS AND ANSWERS “He that questioneth much shall learn MUCH”—BACON NOTE—Readers of FIRE AND WATER ENGINEERING are invited to send in questions, which will be answered in the order received. Names are omitted from questions unless otherwise specified. Why Sprinklers Go Off When Their Is No Fire To the Editor: I wonder if you can tell me what causes sprinkler heads to go off when there is no trace of fire in the building and when from all appearances the sprinkler system seems to be in perfect working order. This does not happen very often in our city but when it does, I frankly am left a little at a loss to explain just how it happened. Has a study ever been made, I wonder, to determine what causes other than fire will set the sprinkler off? Yours very truly, J. L. F. Answer—In an article written by R. W.…

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