In Pelton wheel, relative inlet velocity of jet with respect to velocity of vane is

Related MCQs

• The whirl velocity of water at the inlet of the Kaplan turbine is 15 m/s. The velocity of water at inlet of the turbine is 20 m/s. Find the guide vane angle at inlet (In degrees).
• In Pelton wheel, if outlet velocity angle of jet is “acute angled” then outlet whirl velocity of jet is                           
• In Pelton wheel, if outlet velocity angle of jet is “obtuseangled” then outlet whirl velocity of jet is                         
• In Pelton wheel, if outlet velocity angle of jet is “right angled” then outlet whirl velocity of jet is                    
• In the inlet velocity triangle of a Kaplan turbine, α1 = 45o. The velocity of flow at inlet = 10 m/s. Find the whirl velocity of water at the inlet of Kaplan turbine?
• The relative velocity of water at the inlet of the Kaplan turbine is 7 m/s. β1 = 75o. The whirl velocity of the water at inlet is 10 m/s. Find the blade velocity of the turbine?
• To obtain maximum hydraulic efficiency of pelton turbine, blade velocity should be                      Times the inlet velocity of jet.
• In which of following turbine inlet whirl velocity and inlet jet velocity are equal in magnitude?
• 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:
• In Inward radial flow reaction turbine the ratio of tangential wheel at inlet to given velocity of jet is known as