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
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 (By Examveda Team)
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.This Question Belongs to Mechanical Engineering >> Internal Combustion Engines (I.C. Engines)
Engine pistons are usually made of aluminium alloy because it
A. Is lighter
B. Wear is less
C. Absorbs shocks
D. Is stronger
The reason for supercharging in any engine is to
A. Increase efficiency
B. Increase power
C. Reduce weight and bulk for a given output
D. Effect fuel economy
Morse test can be conducted for
A. Petrol engines
B. Diesel engines
C. Multi cylinder engines
D. All of these
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