A jet of water is striking at the centre of a curved vane moving with a uniform velocity in the direction of jet. For the maximum efficiency, the vane velocity is

Related MCQs

• A jet of water enters and leaves a fixed curved vane tangentially. The force of jet along perpendicular to the vane is zero.
• The efficiency of jet propulsion for a ship with inlet orifices at right angles to the direction of motion of ship, will be maximum when the relative velocity of the jet and ship is equal to twice the velocity of the ship.
• The maximum efficiency of jet propulsion of a ship with inlet orifices at right angles to the direction of motion of ship, is
• In an impulse turbine, the jet of water impinges on the bucket with a low velocity and after flowing over the vanes, leaves with a high velocity.
• For centrifugal pump impeller, the maximum value of the vane exit angle is
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• A Pelton wheel working under a constant head and discharge, has maximum efficiency when the speed ratio is