Internal Combustion Engines
Diesel fuel, compared to petrol is

Just about the same difficult to ignite
Less difficult to ignite
More difficult to ignite
Highly ignitable

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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
To lift water from deep wells
Store the energy of water
Increase the pressure of water

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