-Turning more The areas of the turning moment diagram for one revolution of a multi-cylinder engine with reference to the mean turning moment, below and above the line, are 32, + 408,- 267, +333, 310, +226,374, +260 and 244 mm2. The scale for abscissa and ordinate are: 1 mm = 2.4° and 1 mm = 650 N-m. respectively. The mean speed is 300 rpm with a percentage speed fluctuation of ± 1.5%. If the hoop-stress in the material of the rim is not to exceed 5.6 MPa, determine the suitable diameter and cross-section for the flywheel, assuming that the width is equal to 4 times the thickness. The density of the material may be taken as 7200 kg/m3. Neglect the effect of the boss and arms. 408 333 226 267 310 374 244 Mean turning moment line Crank angle [25marks] (A)