Internal Combustion Engines
A hydraulic ram is a device used to

To lift small quantity of water to a greater height when a large quantity of water is available at a smaller height
Increase the pressure of water
To lift water from deep wells
Store the energy of water

ANSWER DOWNLOAD EXAMIANS APP

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

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

ANSWER DOWNLOAD EXAMIANS APP