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

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

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Internal Combustion Engines
Volatility of diesel fuel oil is

It catches fire without external aid
Minimum temperature to which oil is heated in order to give off inflammable vapours in sufficient quantity to ignite momentarily when brought in contact with a flame
Temperature at which it solidifies or congeals
Indicated by 90% distillation temperature, i.e., when 90% of sample oil has distilled off

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Internal Combustion Engines
A hydraulic ram is a device used to

To lift water from deep wells
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
Store the energy of water

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MORE MCQ ON Internal Combustion Engines