Which one of the following engines will have heavier flywheel than the remaining ones?
a) 30 kW four-stroke petrol engine running at 1500 r.p.m.
b) 30 kW two-stroke petrol engine running at 1500 r.p.m.
c) 30 kW two-stroke diesel engine running at 750 r.p.m.
d) 30 kW four-stroke diesel engine running at 750 r.p.m.






