Question

A four stroke engine has a displacement volume of $0.04m^3$. The engine runs at 2000 r.p.m and has an power output of 1000 kW. The mean effective pressure (in kPa) is

• A. 4500 kPa
• B. 3000 kPa
• C. 750 kPa
• D. 1500 kPa

Answer 1

The correct option is D 1500 kPa

$MeanEffectiveprssure\left(MEP\right)=\frac{Poweroutput}{Displacementvolume\left(in{m}^3/s\right)}$

$=\frac{1000}{0.04\times \frac{2000}{120}}=1500kPa$