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Mechanical Engineering · Q103

Internal Combustion Engines (I.C. Engines)

Engineering and GATE · Mechanical Engineering · question 103

Q103

Pour point of fuel oil is the

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
Answer
C.
It catches fire without external aid
D.
Indicated by 90% distillation temperature i.e., when 90% of sample oil has distilled off

Answer: Option B

Solution

Answer: Option B
Solution:
Pour point of fuel oil is the Temperature at which it solidifies or congeals. Pour Point is the temperature at which a liquid becomes semisolid and loses its flowing characteristics. As the paraffin content is high in crude oil, thus it has a high Pour Point.