Experimental engineering and manual for testing. For engineers and for students in engineering laboratories (1906)
Carpenter, Rolla C. (Rolla Clinton), 1852-1919 · New York, J. Wiley & Sons; [etc., etc.] · leaf 582
a small scale, they are often irregular, and the boundarylines are frequently obscure, so that the measurement must bemade with great care. The diagrams may be taken from each end of the cylinderon a separate card, as shown in Fig. 257; or by the use of thethree-way cock (see Article 398), in which… … Fig. 258. be determined as though on a separate card. The object ofdiagram-measurements is principally to obtain the mean effect-ive pressure (M. E. P.). Two methods are practised. First, the method of ordinates. In this case the atmos-pheric line AB is divided into ten equal spaces, and…
Building materials · Machinery
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