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

Starts at 40° after bottom dead centre and ends at 30° before top dead centre
Starts at bottom dead centre and ends at top dead centre
May start and end anywhere
Starts at 40° before bottom dead centre and ends at 30° after bottom dead centre

ANSWER DOWNLOAD EXAMIANS APP

Internal Combustion Engines
The compensating jet in a carburettor supplies almost constant amount of petrol at all speeds because the

Jet area is automatically varied depending on the suction
The diameter of the jet is constant and the discharge coefficient is invariant
The flow from the main jet is diverted to the compensating jet with increase in speed
Flow is produced due to the static head in the float chamber

ANSWER DOWNLOAD EXAMIANS APP