Q. A hydraulic coupling belongs to the category of __________

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Q. Multi-stage centrifugal pumps are used to __________

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Q. Slip of a reciprocating pump is defined as the __________

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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. Geometric similarity is said to exist between the model and the prototype if both of them __________

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Q. The speed of an imaginary turbine, identical with the given turbine, which will develop a unit power under a unit head, is known as?

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Q. What is the mechanical efficiency of an impulse turbine?

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Q. Manometric head, in case of a centrifugal pump, is equal to __________

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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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