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 312
.82 165 60.87 210 59.82 70 62.31 120 61.74 170 60.77 211 59.79 75 62.28 125 61.65 175 60.66 212 59.76 Ques. What is the weight of one gallon of water? Ans. For a U. S. gallon or 231 cu. ins., it is generally taken at8^ lbs. 2,966 HAWKINS ELECTRICITY Head and Pressure.—These are the two primary… … Fig. 4,244.—View of elevated tank with pump in operation maintaining the supply which isbeing drawn upon as shown, illustrating the terms static lift, dynamic lift, static head, anddynamic head. The static head is the height from a given point of a column, or bodyof water at rest, considered as…
Electrical engineering
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