Internal Combustion Engines
Flash point of fuel oil is

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

ANSWER DOWNLOAD EXAMIANS APP

Internal Combustion Engines
The expansion of fuel in a four stroke cycle diesel engine

Starts at 15° after top dead center and ends at 30° before bottom dead center
May start and end anywhere
Starts at 15° before top dead center and ends at 30° after top dead center
Starts at top dead center and ends at 30° after top dead center

ANSWER DOWNLOAD EXAMIANS APP

Internal Combustion Engines
If V₁ is the jet velocity and V₀ is the vehicle velocity, then the propulsive efficiency of a rocket is given by

V₀/(V₀ + V₁)
(V₀/V₁)/ [1 + (V₀/V₁)²]
[2(V₀/V₁)]/ [1 + (V₀/V₁)²]
V₁/(V₀ + V₁)

ANSWER DOWNLOAD EXAMIANS APP
MORE MCQ ON Internal Combustion Engines