Which of the following statements about gas turbines is accurate?

Explanation

Option A is incorrect because large gas turbines typically use axial flow turbines rather than radial inflow types. Option B is incorrect since gas turbine blades differ in design compared to steam turbine blades. Option C is correct: gas turbine blades exhibit impulse characteristics at the hub and reaction characteristics at the tip. Option D is incorrect as gas turbines generally use air cooling, not both air and liquid cooling. Therefore, option C is the accurate statement.