Compression ratio of LC. engines is ___________________? A. the ratio of volumes of air in cylinder before compression stroke and after compression stroke B. volume displaced by piston per stroke and clearance volume in cylinder C. ratio of pressure after…

Supercharging is the process of_____________________? A. supplying the intake of an engine with air at a density greater than the density of the surrounding atmosphere B. providing forced cooling air C. injecting excess fuel for raising more load D. supplying…