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This question belongs to Mechanical Engineering Internal Combustion Engines (I.C. Engines)

Internal Combustion Engines (I.C. Engines)

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Volatility of diesel fuel oil is

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 B) Temperature at which it solidifies or congeals C) It catches fire without external aid D) Indicated by 90% distillation temperature, i.e., when 90% of sample oil has distilled off

Answer & Solution

Correct Answer: Option D

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.

Question posted by Examveda

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