Q. 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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Q. 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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Q. A centrifugal pump will start delivering liquid only when the pressure rise in the impeller is equal to the

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Q. When the speed of the pump increases, its net positive suction head (NPSH) requirement decreases.

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Q. The speed of a turbine runner is

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Q. Discharge of a centrifugal pump is (where N = Speed of the pump impeller)

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Q. In a reaction turbine, the draft tube is used

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Q. The power produced by the reaction turbine is __________ to the head of water.

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Q. In an inward flow reaction turbine

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Q. The working of which of the following hydraulic units is based on Pascal's law?

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Q. The hydraulic efficiency of a reaction turbine, is the ratio of

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Q. In order to avoid cavitation in centrifugal pumps

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Q. A hydraulic intensifier is a device used to increase the intensity of pressure of water by means of energy available from a large quantity of water at a low pressure.

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Q. By fitting an air vessel to the reciprocating pump, there is always a saving of work done and subsequently saving of power.The saving in case of a double acting reciprocating pump is

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Q. In a reciprocating pump, air vessels are used to

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Q. In a Francis turbine, the pressure at inlet is __________ that at outlet.

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Q. If the ratio's of the corresponding forces acting at corresponding points are equal, then the model and the prototype are said to have.

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Q. A Pelton wheel working under a constant head and discharge, has maximum efficiency when the speed ratio is

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Q. The impeller of a centrifugal pump may have

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Q. Kinematic similarity is said to exist between the model and the prototype, if both of them

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