A jet of water enters and leaves a fixed curved vane tangentially. The force of jet along perpendicular to the vane is zero.

Related MCQs

• 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
• 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.
• In the casing of a centrifugal pump, the kinetic energy of the water is converted into pressure energy before the water leaves the casing.
• 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.
• In a reaction turbine, the water enters the wheel under pressure and flows over the vanes.
• In a centrifugal pump, the water enters the impeller
• For centrifugal pump impeller, the maximum value of the vane exit angle is
• The breast water wheels are those in which the wheel runs partly by the weight of water and partly by the impulse of water.
• The principle of jet propulsion is used in driving the ships and aeroplanes.
• Braking jet in an impulse turbine is used