Mechanical laboratory methods; the testing of instruments and machines in the mechanical engineering laboratory and in practice (1922)
Smallwood, Julian Chase · New York, D. Van Nostrand company · leaf 127
OW METERS 22 The head in inches of mercury should be transposed to feetof water. Referring to Fig. 61, it is seen that the column of wateron the right above X balances an equal column on the left. The (-Metal Disc for Chart -Capillary PenTen Arm6* Pay Clockin Metal Case Aluminum Disc Counter Dial… … --Case Ftg. 63—Builders Iron Foundry Venturi Meter Recorder. column of water between X and F, however, is balanced bymercury, so that the pressure difference between sections a and6 is not XY inches of mercury, but XY inches of mercury minus AT Yinches of water; that is (13.6-1)12 XY=1.05 XY, feet…
Mechanical engineering
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