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Water flows through a frictionless duct with a cross-section varying as shown in figure. Pressure P at points along the axis is represented by:
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Important Questions on Fluid Mechanics
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A tank of height is full of water. There is a hole of cross-sectional area in its bottom. The initial volume of water that will come out from this hole per second is:
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The pressure of water in a water pipe when tap is opened and closed is respectively and .With open tap the velocity of water flowing is:
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The flow speeds of air on the lower and upper surfaces of the wing of an aeroplane are and , respectively. The density of air is and the surface area of the wing is . The dynamic lift on the wing is:
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An incompressible fluid flows steadily through a cylindrical pipe which has radius at point and radius at point , further along the flow direction. If the velocity at point is , its velocity at point will be:
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Water is flowing through a non-uniform radius tube. If the ratio of the radius of entry and exit end of the pipe is , then the ratio of velocities of entering and exit liquid is:-
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An aeroplane of mass kg and total wing area of is in a level flight at some height. The difference in pressure between the upper and lower surface of its wings in kilo pascals is
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The scent sprayer is based on
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Bernoulli’s equation for steady, non-viscous, incompressible flow expresses the
