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Mechanical laboratory methods; a testing of instruments and machines in the mechanical engineering laboratory and in practice (1918)

Smallwood, Julian Chase · New York, D. Van Nostrand company · leaf 117

An illustration from Mechanical laboratory methods; a testing of instruments and machines in the mechanical engineering laboratory and in practice, 1918, leaf 117 — ow may beobtained from the calibration curve. Fig. 57 shows a weir, the height of thewater level above the sill being representedby H. The pressure to which the particlesof water at the sill are subjected is equalto // ft. of water. W^hen this pressure isreduced to zero by emergence of the… … Fig. 57.Weir and Hook Gage. 19 FLOW METERS 97 velocity in feet per second, and g the acceleration of gravity.Consequently, WH = WV^/2g and, The velocity of the particles of water at levels above the sill isless than this since they are at less pressure, and it may be shownthat the average velocity…

Mechanical engineering laboratories

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