Q. Which turbines are employed for driving alternator at synchronous speed?
✅ Correct Answer: (A)
central station turbine
Explanation: central turbines are for driving the alternator at synchronous speed. in reheating turbine steam is returned back to the boiler after partial expansion for superheating and then allowed to expand to back pressure. in extraction turbines steam leaves the turbine casing before the exhaust, for feed water heating.