Questions and Answer

Issue 2 and Volume 83.

Questions and Answer NOTE—Readers are invited to send in questions, which will be answered in the order received. Names are omitted from questions unless otherwise specified The Pumper Problem Again To the Editor: In the Question and Answer Department of the Nov. 13th, 1929, issue the problem was given: “Two lines of 2 1/2 in. hose, each 200 feet in length, are stretched from an engine to a Siamese connection from which 50 feet of hose is laid up a ladder to an elevation of 50 feet (apparently the Siamese is a short distance up the ladder because the nozzle employed is 50 feet above the ground). A 2 1/2 in. nozzle is used. 90 pounds pressure is wanted at the nozzle. “What will be the discharge? “What pressure will be required at the engine? “If 750 gallon pumpers are used, how many will be required?” The originator of the…

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