Automobile Engineering in ME
In a square type engine

Diameter and length of piston are same
Geometrical shape is square
Stroke length and cylinder bore are same
Two cylinders are placed horizontal and two vertical

ANSWER DOWNLOAD EXAMIANS APP

Automobile Engineering in ME
The compression ratio in petrol engine is kept less than in Diesel engine because

Higher or equivalent compression ratio in petrol engines is not possible due to pre-ignition
Less compression ratio gives better performance
It is just customary to have less compression ratio in petrol engines
It makes petrol engines lighter

ANSWER DOWNLOAD EXAMIANS APP