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1. |
_Detonation is harmful due to$? |
A. | Increase in the rate of heat transfer, there is a reduction in the power output and efficiency of the engine |
B. | Excessive turbulence which removes most of the insulating gas boundary layer from the cylinder walls |
C. | High intensity of knock causes crankshaft vibration and the engine runs rough |
D. | None of the above |
Answer» E. | |