## Lakshya Education MCQs

Question: If v1 and v2 are the velocities of water at inlet and outlet of the draft tube respectively, then the efficiency of a draft tube is
Options:
 A. (V1 - V2) / V1 B. (V1² - V2²) / V1² C. V1 / (V1 - V2) D. V1² / (V1² - V2²)

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