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

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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 decrease maximum temperature
Increase maximum pressure and maximum temperature
Reduce maximum pressure and maximum temperature

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Internal Combustion Engines
In a coil ignition system of petrol engines, a condenser is connected across the contact breaker in order to

None of these
Prevent sparking across the gap between the points
Cause more rapid break of the primary current, giving a higher voltage in the secondary circuit
Both (A) and (B)

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