The ratio of manometric head to the work head is called               

Related MCQs

• The manometric head Hm of a centrifugal pump is given by
• The manometric efficiency (ηman) of a centrifugal pump is given by
• High head, low head and medium head turbines are classified based on
• The horse power transmitted through a pipe is maximum when the ratio of loss of head due to friction and total head supplied is
• A liquid flows through pipes 1 and 2 with the same flow velocity. If the ratio of their pipe diameters d1 : d2 be 3:2, what will be the ratio of the head loss in the two pipes?
• A liquid flowss through two similar pipes 1 and 2. If the ratio of their flow velocities v1 : v2 be 2:3, what will be the ratio of the head loss in the two pipes?
• 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)?
• 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
• The efficiency of power transmission through pipe is (where H = Total supply head, and hf = Head lost due to friction in the pipe)
• 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