Petroleum Refinery Engineering
Research octane number refers to the

High octane number motor fuels
High octane number aviation fuels
Unleaded motor fuels
Low octane number motor fuels

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Petroleum Refinery Engineering
Petroleum deposits are detected by the.

Oil seepage at the surface of the earth
Measuremet of density, elasticity and magnetic & electric properties of the rock in the crust of the earth
All of these
Age & nature of rocks inside the crust of the earth

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