A six cylinder, two stroke/cycle diesel engine is 83% efficient and has a cylinder constant of 0.998 while operating with a mean effective pressure of 15 kg/cm2 at a speed of 100 RPM. What is the metric brake horse power developed?

Correct Answer: Option C — 7,455 mbhp

Metric Brake Horsepower is calculated using the formula: MBHP = (P * L * A * N * n * efficiency) / constant. Given the cylinder constant (L*A*N/constant) of 0.998, mean effective pressure of 15 kg/cm2, 6 cylinders, and 83% efficiency, the calculation yields 7,455 MBHP. This represents the actual power delivered to the crankshaft.