Leadership

Questions and Answers

Issue 8 and Volume 90.

Questions and Answers NOTE—Readers are invited to send in questions, which will be answered in the order received. Names are omitted from questions unless otherwise specified Nozzle Performances To the Editor: Would you kindly give your opinion on the following question? A. contends that a branch pipe tip, illustrated below, is more effective and would give a more solid stream than the conventional type. A. claims that eddy currents are set up in the process of gradual reduction of the area of the stream in the convention type branch. B. argues that in A’s branchpipe back-pressure would be set up. W. R. M. Answer: It is the writer’s belief that the type of branch pipe illustrated, having a rapidly converging cross-section, would produce a stream with more spray and less range than one of the conventional type. In the very elaborate series of experiments carried on by John R. Freeman,…

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