Compressors, Gas Turbines and Jet Engines
In a turbo jet engine, subsequent to heat addition to compressed air, to get the power output, the working substance is expanded in

Exit nozzle, which is essentially an isentropic process
Turbine blades, which is essentially an isentropic process
Turbine blades, which is a constant volume process
Exit nozzle, which is a constant volume process

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Compressors, Gas Turbines and Jet Engines
Intercooling in gas turbines

Decreases net output but increases thermal efficiency
Decreases net output and thermal efficiency both
Increases net output but decreases thermal efficiency
Increases net output and thermal efficiency both

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

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

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