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The jet ratio of a Pelton wheel is: [Where, D = Pitch diameter of pelton wheel, d = Jet diameter]

The jet ratio of a Pelton wheel is: [Where, D = Pitch diameter of pelton wheel, d = Jet diameter] Correct Answer D/d

Concept: In Pelton wheel jet ratio is defined as ratio of pitch diameter of wheel and jet diameter

i.e. J = D/d

Note: A jet ratio of 12 is normally adopted.

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