Hawkins electrical guide ... : questions, answers & illustrations : a progressive course of study for engineers, electricians, students and those desiring to acquire a working knowledge of electricity and its applications ; a practical treatise (1914)
Hawkins, N. (Nehemiah), 1833-1928 · New York : T. Audel & Co. · leaf 318
the vapor. That is to say, forillustration, a boiler feed pump taking water at say 153° Fahr., couldnot produce a vacuum greater than 21.78 ins., because at that point 2,972 HAWKINS ELECTRICITY the water would begin to boil and fill the pump chamber with steam.Accordingly, the theoretical lift… … Figs. 4,247 and 4,248.—Hydraulic principles: 4. The pressure upon any particle of a fluidof uniform density is proportional to its depth below the surface. Example 1. Let thecolumn of fluid ABCD, fig. 4,247, be perpendicular to the horizon. Take any points,X and Y, at different depths, and conceive…
Electrical engineering
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