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Fluid Mechanics
Bernoulli's Equation & Flow
GATE 2019
Easy

As per common design practice, the three types of hydraulic turbines, in descending order of flow rate, are

  • Kaplan, Francis, Pelton
  • BPelton, Francis, Kaplan
  • CFrancis, Kaplan, Pelton
  • DPelton, Kaplan, Francis

Explanation

Kaplan turbines are low-head, high-flow-rate (axial-flow) machines; Pelton wheels are high-head, low-flow-rate (impulse) machines; Francis turbines fall in between. In descending order of flow rate: Kaplan, Francis, Pelton.

Source: GATE ME 2019 Session 1 (Set 1) (2019)

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