Inside pressure of which of the following turbine is equal to atmospheric pressure?

Inside pressure of which of the following turbine is equal to atmospheric pressure? Correct Answer Pelton wheel turbine

Francis and propeller turbines are totally submerged in water, the turbine casing is full of water. As the water flows through the turbine blades, its pressure changes. Also the discharging water creates negative pressure below the turbine blades. Pelton turbines are fitted in open air and water Jet is forced into its blades by nozzel so it’s inside pressure is equal to atmospheric pressure.

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