In constant speed curves, the velocity is kept a constant varying its head.

Related MCQs

• In constant speed curves, the speed is kept a constant varying its head.
• Constant speed curves travel at constant speed when the value is equal to               
• A turbine works at 20 m head and speed of 500 rpm. Its 1:2 scale model to be tested at same head should have a rotational speed of
• A Kaplan turbine requires a speed ratio of 2. The available head of the turbine is 5 m. What should be the blade velocity of the turbine such that a speed ratio of 2 is maintained (take g = 10 m/s2)?
• Constant head curves are also called as              
• Constant speed curves are also called as               
• Constant speed curves are                
• Constant speed curves are determined by the                  
• Power developed by Francis turbine are calculated for a certain set of conditions. Now, the inlet whirl velocity is doubled, the blade velocity at inlet is doubled and the flow velocity is quartered. The power developed:
• 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.