Two technicians are discussing the lower-end operation of an engine. Technician A says that power loads result from the expansio
n of burning gases during the combustion process that push down on the piston and turn the crankshaft. Technician B says that when the connecting rod is pulling the piston down from TDC (top dead center), the piston weight plus any ring friction and skirt drag puts a load on the connecting rod. Who is right? A. Both Technicians A and B
