The pressure at the exit of runner of reaction turbine is generally than atmospheric pressure

Related MCQs

• Volume flow rate of water in a Francis turbine runner is 25 m3/s. The flow velocity, whirl velocity and blade velocity are 11 m/s, 10 m/s and 5 m/s respectively, all values given at runner inlet. Find the power developed by the turbine.
• is ratio of pressure energy change inside runner to total energy change inside runner
• The main difference between reaction turbine and inward radial flow reaction turbine is water flows                     
• The main difference between reaction turbine and outward radial flow reaction turbine is water flows                    
• The reaction turbine is one in which the available hydraulic energy is converted to kinetic energy before the fluid enters the runner
• The casing of radial flow reaction turbine is made of spiral shape, so that water may enter the runner                   
• In Pelton turbine is defined as ratio between power delivered to runner and power supplied at inlet of turbine
• Which of the following efficiencies for Francis Turbine is described as the ratio between total quantity of water over runner blades to total quantity of water supplied to turbine?
• Which of the following efficiencies for Francis Turbine is defined as the ratio between the power available at the shaft of the turbine to the power produced by the runner?
• The input water power of the Francis turbine is 1.25 times the runner power. What would be the hydraulic efficiency of the turbine (in %)?