Internal Combustion Engines
As compared to air standard cycle, in actual working, the effect of variation in specific heats is to

Decrease maximum pressure and increase maximum temperature
Increase maximum pressure and maximum temperature
Increase maximum pressure and decrease maximum temperature
Reduce maximum pressure and maximum temperature

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

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Internal Combustion Engines
Flash point of fuel oil is

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
Indicated by 90% distillation temperature, i.e. when 90% of sample oil has distilled off
Temperature at which it catches fire without external aid
Temperature at which it solidifies or congeals

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