Solve this multiple-choice question and choose the correct option.

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Speed definitions in turbines: name for speed to develop unit power under unit head Define the engineering term for the speed of an imaginary turbine, geometrically similar to a given turbine, that would develop <strong>unit power under unit head</strong>. Choose the correct term.

Difficulty: Easy

Normal speed
Unit speed
Specific speed
None of these

Correct Answer: Specific speed

Explanation:

DefinitionsUnit speed: speed at unit head producing the same power as the actual turbine.Specific speed (N_s): speed of a geometrically similar turbine that develops unit power at unit head.

Final AnswerSpecific speed.

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