Question

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It is the temperature that an oil has to be heated to produce sufficient
volatile vapours, capable of ignition by a flammable application and
continuing to burn thereafter. It is approximately 40 deg.C higher than
the closed flash point.
Self-Ignition Point
It is the minimum temperature at which a fuel is capable of ignition on
its own accord, without an external application of heat or flame. It is
used when the choosing the compression ratio to match the fuel grade.
Pour Point
It is the lowest temperature at which an oil ceases to flow, or can be
poured. It is important when considering storing, heating, pumping,
wax crystallization, or solidification of an oil.​

Answer 1

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