30.What is the ratio of Brake Mean Effective Pressure(BMEP)to Indicated Mean Effective Pressure(IMEP
問題詳情
30.What is the ratio of Brake Mean Effective Pressure(BMEP)to Indicated Mean Effective Pressure(IMEP)? (A)Mechanical efficiency (B)Scavenging efficiency (C)Thermal efficiency (D)Propulsive efficiency