Thursday, 4 July 2013

Flash point of fuel oil is ______.

(a)     minimum temperature to which1 oil is heated in order to give off inflammable vapours in sufficient quantity to ignite momentarily when brought in contact with a flame
(b)    temperature at which it solidifies or congeals
(c)    temperature at which it catches fire without external aid
(d)    indicated by 90% distillation temperature, i.e. when 90% of sample oil has distilled off
(e)    none of the above.

Ans: a

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