Virtual Labs

Performance Characteristics of Kaplan Turbine

1) Which of the following statements is true?

a: Both Pelton and Francis turbine are impulse turbine Explanation

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b: Kaplan turbine is axial flow reaction turbine Explanation

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c: Francis turbine is axial flow reaction turbine Explanation

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d: Pelton is reaction turbine Explanation

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2) For which of the following values of available heads may Kaplan turbine be used?

a: 250 m Explanation

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b: 150 m Explanation

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c: 100 m Explanation

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d: 80 m Explanation

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3) Which turbine usually has least number of blades?

a: Kaplan Explanation

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b: Pelton Explanation

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c: Francis Explanation

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d: All have equal number of blades Explanation

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4) Blades in Kaplan Turbine have twist to maintain:

a: Constant angle of attack and high efficiency Explanation

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b: Constant angle of attack and low efficiency Explanation

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c: Variable angle of attack and constant efficiency Explanation

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d: Variable angle of attack and high efficiency Explanation

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5) The runner of turbine are always at a pressure above the atmospheric pressure.

a: Turgo Explanation

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b: Girand Explanation

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c: Kaplan Explanation

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d: Pelton Explanation

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6) Velocity triangles are used to analyze:

a: Flow of water along blades of turbine Explanation

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b: Measure discharge of flow Explanation

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c: Angle of deflection of jet Explanation

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d: Flow of water, measure of discharge, angle of deflection Explanation

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7) The Kaplan Turbine is an evolution of:

a: Francis turbine Explanation

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b: Pelton wheel Explanation

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c: Parsons turbine Explanation

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d: Curtis turbine Explanation

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8) Kaplan turbines rotates at a rate.

a: increasing Explanation

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b: decreasing Explanation

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c: constant Explanation

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d: increasing and then decreasing Explanation

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9) The outlet of the Kaplan turbine is through _______.

a: Vane Blades Explanation

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b: Moving pipeline Explanation

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c: Draft tube Explanation

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d: Pump Explanation

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10) The power output of Kaplan turbine typically ranges from:

a: 5 to 200 MW Explanation

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b: 1000 to 2000 MW Explanation

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c: 2000 to 3000 MW Explanation

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d: 5000 and above Explanation

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