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

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

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Compressors, Gas Turbines and Jet Engines
For minimum work in multistage compression, assuming same index of compression in all stages

Work done in all stages should be equal
Work done in first stage should be more
Work done in subsequent stages should increase
Work done in subsequent stages should decrease

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