Mechanical Engineering :: Hydraulic Machines
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The maximum number of jets, generally, employed in an impulse turbine without jet interference are
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In a reciprocating pump, air vessels are fitted to the suction pipe and delivery pipe close to the cylinder of the pump.
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Discharge (Q) of a centrifugal pump is given by (where D = Diameter of impeller at inlet, b = Width of impeller at inlet, and Vf = Velocity of flow at inlet)
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A centrifugal pump will start delivering liquid only when the pressure rise in the impeller is equal to the
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When the speed of the pump increases, its net positive suction head (NPSH) requirement decreases.
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A Francis turbine is used when the available head of water is
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The specific speed from 160 to 500 r.p.m. of a centrifugal pump indicates that the pump is
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A hydraulic coupling belongs to the category of
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The principle of jet propulsion is used in driving the ships and aeroplanes.
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In the casing of a centrifugal pump, the kinetic energy of the water is converted into pressure energy before the water leaves the casing.
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