Internal Combustion Engines
If the ratios of all the corresponding linear dimensions are equal, then the model and the prototype are said to have

Dynamic similarity
Geometric similarity
Kinematic similarity
None of these

ANSWER DOWNLOAD EXAMIANS APP

Internal Combustion Engines
In a four stroke cycle petrol engine, the expansion

May start and end anywhere
Starts at 30° before top dead center and ends at 50° before bottom dead center
Starts at 30° after top dead center and ends at 50° after bottom dead center
Starts at top dead center and ends at bottom dead center

ANSWER DOWNLOAD EXAMIANS APP