An alternator coupled to a __________ runs at slow speed, as compared to as compared to others.
Correct answer: B. hydraulic turbine
- A. diesel engine
- B. hydraulic turbine
- C. steam turbine
- D. gas turbine
Explanation
Hydraulic turbines, especially those used with large water heads, generally operate at lower speeds than steam, gas and diesel prime movers. The alternator coupled to them therefore runs relatively slowly.
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