Issue 12 and Volume 65.

QUESTIONS AND ANSWERS Readers of FIRE AND WATER ENGINEERING are invited to send in questions, which will be answered in the order in which they are received. Names are omitted from questions unless otherwise specified. Water Tower Nozzle Pressure To the Editor: The following is a problem which I would like very much to have your answer in Questions and Answers: A water tower, extended to its full height, 65 feet, and equipped with a 2-inch pipe, is being supplied by two engines. The first engine is pumping through 500 feet of 2 1/2-inch hose which is siamesed into 300 feet of 3-inch hose, connected to the water tower. The second engine is pumping through 600 feet of 2)d-inch hose, which is in turn siamesed into the same 300-foot stretch of 3-inch hose as shown in the sketch herewith. The pressure at the first engine is 150 pounds and that…

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