The cubic capacity of a four-stroke over-square spark-ignition engine is 270 cc. the over-square ratio is 1.3. the clearance volume is 28.3 cc. calculate the following: bore (m): stroke (m): compression ratio:

For each of the following process: a) sketch the p-v diagram, b)sketch t-s diagram, c) sketch t-v diagram, d) sketch the boundary work on one of the diagrams (a, b or c) and e) sketch the reversible heat transfer on one of the diagrams (a, b or c): 1- isobaric process from compressed liquid to superheated vapor 2- isothermal process from compressed liquid to superheated vapor 3- isentropic process from compressed liquid to superheated vapor