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An indicator diagram for a steam engine is shown in Fig. 19.12. The base line has been divided into 6 equally spaced intervals and

An indicator diagram for a steam engine is shown in Fig. 19.12. The base line has been divided into 6 equally spaced intervals and the lengths of the 7 ordinates measured with the results shown in centimetres. Determine (a) the area of the indicator diagram using Simpson's rule, and (b) the mean pressure in the cylinder given that I cm represents 100 kPa. 3.6 4.0 3.5 2.9 12.0cm 2.2 1.7 1.6

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