Which one of the following event would reduce the volumetric efficiency of a vertical compression ignition engine?
(a) inlet valve closing after bottom dead center
(b) inlet valve closing before bottom dead center
(c) inlet valve opening before top dead center
(d) exhaust valve closing after top dead center
The question was asked during a job interview.
I'd like to ask this question from Engine Efficiencies in section Measurements and Testing/Performance Parameters and Characteristics of IC Engine