In case of impulse steam turbine_____________?
Correct answer: C. there is enthalpy drop in nozzles
- A. there is enthalpy drop in fixed and moving blades
- B. there is enthalpy drop only in moving blades
- C. there is enthalpy drop in nozzles
- D. none of the above
Explanation
For an impulse turbine, the pressure and enthalpy drop occur in the fixed nozzles, which convert enthalpy into steam velocity. The moving blades primarily extract kinetic energy without an appreciable pressure drop.
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