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Q. |
The quality of petrol is expressed in terms of – |
A. | Cetane number |
B. | Gold number |
C. | Octane number |
D. | Added unlead compounds |
Answer» C. Octane number | |
Explanation: Octane rating or octane number is a standard measure of the of the ignition quality of has (gasoline or petrol). Higher this number, the less susceptible is the gas to `knocking' (explosion caused by its premature burning in the combustioncharnber) when burnt in a standard (spark-ignition internal combustion) engine. |
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