Internal Combustion Engines
The tangential velocity of the water element having a free vortex is

Directly proportional to its (distance)2 from the centre
Inversely proportional to its distance from the centre
Directly proportional to its distance from the centre
Inversely proportional to its (distance)2 from the centre

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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

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

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