The fourth stage of the compression ignition process is :
संपीड़न इग्निशन प्रक्रिया का चौथा चरण है:
Burning on the expansion stroke
Ignition delay period
Period of controlled combustion
Period of rapid or uncontrolled combustion
Burning on the expansion stroke
Fourth stage of CI process is burning
on the expansion stroke.
Hence, correct option is (A).
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