Question

An engine has a mechanical efficiency of 80% with an IP of 35KW, calculate BP.

(a) 28MW

(b) 2.8W

(c) 2.8GW

(d) 28KW

The question was posed to me in an interview.

My question comes from IC Engine in section Design of IC Engine Components of Automotive Engine Design

Answer 1

Right answer is (d) 28KW

To elaborate: ηmechanical=\(\frac{BP}{IP}\)

BP=(0.8×35)

=28KW