Question

In petrol engine the actual pressure developed compared to the predicted maximum pressure is?

(a) 90%

(b) 70%

(c) 50%

(d) 25%

I got this question in a national level competition.

My query is from Actual Cycle in portion Fuel Air and Actual Cycles and their Analysis of IC Engine

Answer 1

Correct option is (c) 50%

The explanation is: In petrol engine the actual pressure developed compared to the predicted maximum pressure is 50% while energy released in actual cycle is about 90% of the fuel input.