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GATE 2019 ME (ME1) – Question 20

Thermal Engineering Applications · Turbomachinery: turbines, compressors, pumps · 1 mark · Multiple choice

Order the hydraulic turbines by descending flow rate under common design practice.

  1. Kaplan, Francis, Pelton
  2. Pelton, Francis, Kaplan
  3. Francis, Kaplan, Pelton
  4. Pelton, Kaplan, Francis

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Correct answer: (A) Kaplan, Francis, Pelton

Explanation

Kaplan machines suit low heads and large discharges. Francis machines occupy the intermediate head and discharge range. Pelton impulse turbines suit high heads with comparatively small discharges. Thus descending discharge is **Kaplan, Francis, Pelton, A**.