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Mechanical Engineering · all questions

Hydraulics And Fluid Mechanics
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When the flow in an open channel is gradually varied, the flow is said to be

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When the flow parameters at any given instant remain same at every point, then flow is said to be

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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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The atmospheric pressure with rise in altitude decreases

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An ideal flow of any fluid must satisfy

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The bulk modulus of elasticity

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Gradually varied flow is

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

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

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A hydraulic accumulator normally consists of

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A hydraulic intensifier normally consists of

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Center of pressure compared to e.g. is

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In order that flow takes place between two points in a pipeline, the differential pressure between these points must be more than

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The total energy line lies over the centre line of the pipe by an amount equal to

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The specific speed of a turbine is given by the equation

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An open tank containing liquid is made to move from rest with a uniform acceleration. The angle 0 which the free surface of liquid makes with the horizontal is such that (where a = Horizontal acceleration of the tank and g = Acceleration due to gravity)

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The resultant upward pressure of a fluid on a floating body is equal to the weight of the fluid displaced by the body. This definition is according to

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The discharge through a channel of trapezoidal section is maximum when

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Coefficient of contraction is the ratio of

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The most efficient section of a channel is

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