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mechanical engineering ic engines and nuclear power plants
1. A fuel of an octane number rating of 75 matches in knocking intensity as a mixture of
(A): 75% diesel and 25% petrol
(B): 75% iso-octane and 25% normal heptane
(C): 75% normal heptane and 25% iso-octane
(D): 75% petrol and 25% diesel
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