Discussion :: Internal Combustion Engines
- Volatility of diesel fuel oil is
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A.
Minimum temperature to which oil is heated in order to give off inflammable vapours in sufficient quantity to ignite momentarily when brought in contact with a flame |
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B.
Temperature at which it solidifies or congeals |
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C.
It catches fire without external aid |
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D.
Indicated by 90% distillation temperature, i.e., when 90% of sample oil has distilled off |
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Answer : Option D
Explanation :
Volatility of diesel fuel oil is Indicated by 90% distillation temperature, i.e., when 90% of sample oil has distilled off. Volatility refers to how easily a fuel vaporizes. It affects how easily you can start your car, warm it up, and how well it runs. Diesel fuel comes in two basic grades, each with a different volatility. Automobiles use one and large trucks do better on the other.
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