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General Knowledge MCQs
Q
How many spark plugs are needed in a diesel engine?
AA. 3
BB. 4
CC. 6
DD. none of these
Correct Answer:
D. D. none of these
Explanation:
Diesel engines do not require spark plugs because they use compression ignition, where the heat generated by compressing the air ignites the fuel, rather than a spark. Instead, they often use glow plugs for cold starting