A 'Kaplan turbine' is best suited for:
Choose the correct answer
High head (> 300 m) and low discharge
Low head (2–40 m) and high discharge — adjustable blades give high efficiency over wide range of flow
Only for pumping water uphill
Medium head with very small discharge
Correct Answer
B. Low head (2–40 m) and high discharge — adjustable blades give high efficiency over wide range of flow
AI Detailed Explanation & IS Code Reference
Unlock the reasoning, formula path and code-linked notes inside your student dashboard.
Kaplan turbine (axial flow, reaction turbine): adjustable runner blades and guide vanes → adapts to varying flow and head. Best for: low head (2–40 m), high discharge conditions (run-of-river, tidal barrages). Ns (specific speed) = 300–900 rpm. Efficiency peaks over wide load range due to blade adjustment. Used in: rivers with low head — NHPC, river-of-river schemes in North-East India.
ScoreCardAI links this solution with subject, topic and difficulty signals so your scorecard can identify weak areas after a full mock test.
Practice more Civil Engineering questions
This MCQ belongs to JE Level Premium Test Series. Full tests include timed attempts, rank comparison and subject-wise analysis.