Compressors, Gas Turbines and Jet Engines
Volumetric efficiency is

The ratio of stroke volume to clearance volume
Reciprocal of compression ratio
The ratio of the air actually delivered to the amount of piston displacement
Index of compressor performance

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Compressors, Gas Turbines and Jet Engines
Pick up the correct statement

Gas turbines use both air and liquid cooling
Gas turbine's blade will appear as impulse section at the hub and as a reaction section at tip
Gas turbines have their blades similar to steam turbine
Large gas turbines use radial inflow turbines

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