Internal Combustion Engines
The knock in diesel engine occurs due to

Reduction of delay period
Instantaneous auto ignition of last part of charge
Instantaneous and rapid burning of the first part of the charge
Delayed burning of the first part of the charge

ANSWER DOWNLOAD EXAMIANS APP

Internal Combustion Engines
Which one of the following event would reduce volumetric efficiency of a vertical compression ignition engine?

Exhaust valve closing after top dead center
Inlet valve opening before top dead center
Inlet valve closing before bottom dead center
Inlet valve closing after bottom dead center

ANSWER DOWNLOAD EXAMIANS APP