Q. Which of the following statement is correct as regard to water wheels?

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Q. Slip of a reciprocating pump is negative, when

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Q. Which of the following is not an impulse turbine?

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Q. A hydraulic accumulator is a device used to store __________ energy which may be supplied to a machine later on.

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Q. The Furneyron turbine is __________ reaction turbine.

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Q. The discharge through a turbine is

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Q. The cavitation in a hydraulic machine is mainly due to

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Q. The unit speed of the turbine runner is

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Q. In a centrifugal pump, the regulating valve is provided on the

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Q. A Francis turbine is an outward flow reaction turbine.

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Q. The specific speed (Ns) of a centrifugal pump is given by

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Q. Which of the following hydraulic unit is used for transmitting increased or decreased torque to the driven shaft?

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Q. The force exerted by a jet of water impinging normally on a plate which due to the impact of jet, moves in the direction of jet with a velocity v is

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Q. In a reaction turbine, the water enters the wheel under pressure and flows over the vanes.

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Q. If the ratio of all the corresponding linear dimensions are equal, then the model and the prototype are said to have

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Q. The efficiency of a hydraulic press is given by (where W = Weight lifted by ram, P = Force applied on plunger, A = Area of ram, and a = Area of plunger)

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Q. Braking jet in an impulse turbine is used

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Q. The water in a jet propelled boat is drawn through the openings facing the direction of motion of the boat. The efficiency of propulsion is given by

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Q. Head developed by a centrifugal pump is

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Q. The ratio of the normal force of jet of water on a plate inclined at an angle of 30° as compared to that when the plate is normal to jet, is

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