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 329
roportion of one-fourth a trifle,owing to the friction of the water, and this is especially true at high speeds. ELECTRIC PUMPS 2,983 Capacity of Pump.—This term relates to the amount ofwater a pump is able to deliver when operated at a specifiedspeed. There are two kinds of capacity: 1.… … Figs. 4,268 to 4,272.—Metal valve with screw seat details. Pig. 4,268, screw seat; fig. 4,269,stud; fig. 4,270, metal valve; fig. 4,271, spring; fig. 4,272, assembly. Since it is impossible to construct a perfect pump, it is customary incomputing capacity, to first calculate the theoretical…
Electrical engineering
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