Question

____________ is the basic requirement of a good combustion chamber.

(a) Low volumetric efficiency

(b) High compression ratio

(c) Low compression ratio

(d) High power output and high thermal efficiency

The question was asked during an interview.

My enquiry is from Engine Performance Characteristics in division Measurements and Testing/Performance Parameters and Characteristics of IC Engine

Answer 1

The correct answer is:

(d) High power output and high thermal efficiency

A good combustion chamber should be designed to achieve high power output and high thermal efficiency. This is accomplished by optimizing factors like combustion efficiency, mixture formation, air-fuel ratio, and minimizing losses through heat dissipation. A well-designed combustion chamber ensures that the energy from the fuel is effectively converted into power while minimizing fuel consumption and emissions.