What is volatility of diesel fuel?
(a) maximum temperature to which oil is heated in order to give off inflammable vapour in sufficient quantity to ignite momentarily when bought in contact with a flame
(b) it catches fire without external aid
(c) indicated by 90% distillation temperature
(d) none of the mentioned
I have been asked this question during a job interview.
This interesting question is from Qualities of Fuel topic in section Conventional and Alternate Fuels of IC Engine