The speed ratio of an impulse turbine operating under a head off 400m is 0.46. The p.c.d of
turbine wheel is 22.25m then rotational speed, in rpm is

Related MCQs

• A student performs an experiment with a Francis turbine. He accidently set the RPM of Francis turbine to 1400 rpm instead of 700 rpm. He reported the power to be 1 MW. His teacher asks him to perform the same experiment using the correct RPM. The student performs the same experiment again, but this time the erroneously doubled the flow velocity. What does the student report the power to be?
• 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)?
• The velocity of the flow through the Kaplan turbine is 25 m/s. The available head of the turbine is 60 m. Find the flow ratio of the turbine (take g = 10 m/s2).
• The available head of a Francis Turbine is 120 m. The blade velocity is given 35 m/s. Find the speed ratio of the turbine.
• Impulse turbine and reaction turbine are classified based on ?
• In this type of low head turbine, the guide vanes are fixed to the hub of the turbine and are not adjustable. What is this type of turbine called?
• The flow ratio of a Kaplan turbine is given as 0.7. The available head is 30 m. The outer diameter of the runner is 3.5 m and the hub diameter is 2 m. Find the volume of water flowing through the turbine per second (m3/s)?
• In Pelton turbine the ratio of volume available at shaft of turbine and power supplied at the inlet of the turbine is               
• Which kind of turbine is a Pelton Wheel turbine?