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

ANSWER DOWNLOAD EXAMIANS APP

Internal Combustion Engines
Compression ratio of I.C. Engines is

The ratio of volumes of air in cylinder before compression stroke and after compression stroke
Swept volume/cylinder volume
Ratio of pressure after compression and before compression
Volume displaced by piston per stroke and clearance volume in cylinder

ANSWER DOWNLOAD EXAMIANS APP

Internal Combustion Engines
In a four stroke cycle diesel engine, the exhaust valve

Opens at 30° before bottom dead centre and closes at 10° after top dead centre
Opens at bottom dead centre and closes at top dead centre
May open and close anywhere
Opens at 30° after bottom dead centre and closes at 10° before top dead centre

ANSWER DOWNLOAD EXAMIANS APP

Internal Combustion Engines
Which one of the following engines will have heavier flywheel than the remaining ones?

30 kW two-stroke petrol engine running at 1500 r.p.m.
30 kW two-stroke diesel engine running at 750 r.p.m.
30 kW four-stroke petrol engine running at 1500 r.p.m.
30 kW four-stroke diesel engine running at 750 r.p.m.

ANSWER DOWNLOAD EXAMIANS APP