Petroleum Refinery Engineering
In case of liquid petrofuels, momentary combustion is observed at its

Preheating temperature corresponding to viscosity of 25 centistokes
Fire point
Flame temperature
Flash point

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Petroleum Refinery Engineering
Petroleum deposits are detected by the.

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

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