Q. The overall efficiency of a reaction turbine is the ratio of __________

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Q. A Francis turbine is used when the available head of water is?

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Q. The maximum number of jets, generally, employed in an impulse turbine without jet interference are __________

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Q. The cups at the periphery of the Pelton wheel are __________

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

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Q. The maximum efficiency of jet propulsion of a ship with inlet orifices at right angles to the direction of motion of ship, will be?

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Q. Which of the following pump is generally used to pump highly viscous fluid?

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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 ratio of quantity of liquid discharged per second from the pump to the quantity of liquid passing per second through the impeller is known as?

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

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Q. If the ratios 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. The hydraulic efficiency of a reaction turbine is the ratio of __________

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Q. In a Francis turbine runner, the number of blades are generally between __________

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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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Q. Which of the following pump is preferred for flood control and irrigation applications?

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Q. The specific speed from 160 to 500 r.p.m. of a centrifugal pump indicates that the pump is __________

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

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Q. Power required to drive a centrifugal pump is directly proportional to __________ of its impeller.

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