A simple U tube manometer connected to a pipe in which liquid is flowing with uniform speed will give which kind of pressure?

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The right limb of a simple U-tube manometer containing mercury is open to the atmosphere while the lift limb is connected to a pipe in which a fluid of specific gravity 0.85 is flowing. The centre of the pipe is 14 cm below the level of mercury in the right limb.Evaluate the pressure of fluid flowing in the pipe if the difference of mercury level in the two limbs is 22 cm.

asked Jan 30, 2022 in Fluid Mechanics by Charlotte (118k points)

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A single coloumn manometer is connected to a pipe containing a liquid of specific gravity 0.75. Find the pressure in the pipe if the area of reservoir is 250 times the area of tube for the manometer reading. The difference in mercury level is 40 cm. On the left limb the fluid is upto the height of 20 cm.

asked Jan 30, 2022 in Fluid Mechanics by Charlotte (118k points)

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For dynamic fluid motion in a pipe, the pressure measurement cannot be carried out accurately by manometer.

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A Differential manometer is connected at the points A and Bat the centre of two pipes. The pipe A(left limb) contains a liquid of specific gravity = 1.5 while pipe B (right limb)contains a liquid of specific gravity 0.85. The pressure at A and B are .5 kgf/cm^2 and 1.2 kgf/cm2 respectively. Find the difference in level of mercuru in the differential manometer. A is 2.5m above B and 5 m above the mercury in its own limb. B is 2.5 m above the mercury level in limb A.

asked Jan 30, 2022 in Fluid Mechanics by Charlotte (118k points)

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In the inverted U-tube Differential manometer, how is the specific gravity of manometric fluid used relative to the fluid flowing in the pipes

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Pressure variation for compressible fluid is maximum for which kind of process?

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Calculate the pressure of air at a height of 3500m from sea level where pressure and temperature of air are 10 N/cm^2 and 25℃ respectively. The temperature lapse rate is given as 0.0065 ℃ /m. Take density of air at sea level equal to 1.2 kg/m^3.

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What is the variation observed in temperature in atmosphere with respect to elevation?

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The barometric pressure at sea level is 760 mm of Mercury while that on a mountain top is 715 mm. If the density of air is assumed constant at 1.2 kg/m^3 , what is the elevation of the mountain top?

asked Jan 30, 2022 in Fluid Mechanics by Charlotte (118k points)

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If the atmospheric pressure at sea level is 7.5 N/cm2, determine the pressure at a height of 3000m assuming the pressure variation follows isothermal law. The density of air is given as 1.2 km/m3.

asked Jan 30, 2022 in Fluid Mechanics by Charlotte (118k points)

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Calculate the pressure at a height of 6500m above the sea level if the atmospheric pressure is 10.145 N/cm2 and temperature is 25℃ assuming air is incompressible. Take density of air as 1.2 kg/m3. Neglect variation of g.

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As we go upwards, at height there is slight decrease in pressure variation.

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In a U-tube mercury manometer, one end is exposed to the atmosphere and the other end is connected to a pressurized gas. The gauge pressure of the gas is found to be 40 kPa. Now, we change the manometric fluid to water. The height difference changes by: (ρmercury = 13600 kg/m^3, ρwater = 1000 kg/m^3).

asked Jan 30, 2022 in Fluid Mechanics by Charlotte (118k points)

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The distance moved by liquid will be more in which type of manometer?

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A beaker of height h is filled with a liquid of density ρ up to a certain limit. The beaker is rotated by an angle θ such that further increase in the angle will result in over flow of the liquid. If the liquid surface is exposed to the atmosphere, what will be the gauge pressure at point B?

asked Jan 30, 2022 in Fluid Mechanics by Charlotte (118k points)

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A beaker is filled with a liquid of specific gravity S = 1:2 as shown. What will be the pressure difference (in kN/m^2) between the two points A and B, 30 cm below and 10 cm to the right of point A?

asked Jan 30, 2022 in Fluid Mechanics by Charlotte (118k points)

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A beaker is filled with a liquid of density ρ up to a height h. If half the liquid is replaced by equal volume of another liquid of twice the density, what will be the change in the base pressure?

asked Jan 30, 2022 in Fluid Mechanics by Charlotte (118k points)

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The below figure shows an inclined U-tube mercury manometer. The vertical end of the tube is exposed to a gas of gauge pressure 50 kPa and the inclined end is exposed to the atmosphere. The inclined part of the tube is at an angle of 30^o with the horizontal. Find the value of h (in cm) (take g = 9.8 m/s^2, ρmercury = 13600 kg/m^3)

asked Jan 30, 2022 in Fluid Mechanics by Charlotte (118k points)

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A beaker is filled with a liquid of density ρ1 up to a certain height. A is a point, h m downwards from the free surface such that the pressure at A is P. If the liquid is replaced by equal volume of another liquid of density ρ2, at what distance from the free surface will the pressure be P now?

asked Jan 30, 2022 in Fluid Mechanics by Charlotte (118k points)

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A beaker is filled with a liquid of density ρ1 up to a certain height. A is a point, h m downwards from the free surface of the liquid as shown. The liquid is replaced by equal volume of another liquid of density ρ2. If ρ1 > ρ2, how will the pressure at point A change?

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A beaker is filled with a liquid of density ρ1 up to a certain height. The pressure at the base of the beaker id Pb. If the liquid is replaced by an equal volume of another liquid of density ρ2, what will be the pressure at the base of the beaker now?

asked Jan 30, 2022 in Fluid Mechanics by Charlotte (118k points)

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A beaker is filled with a liquid up to a height h. If A and B are two points, one on the free surface and one at the base as shown, such that the minimum distance between the two is l, what will be the pressure at point B?

asked Jan 30, 2022 in Fluid Mechanics by Charlotte (118k points)

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Why can’t the density be assumed as constant for compressible fluids?

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A beaker, partially filled with a liquid is rotated by an angle 30^o as shown. If the pressure at point B becomes 12 bar, what will be the height (in cm) of the beaker?

asked Jan 30, 2022 in Fluid Mechanics by Charlotte (118k points)

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A beaker of height 15 cm is completely filled with water. Now two-third of the liquid is taken out and an equal amount of two other immiscible liquids of specific gravities 0.8 and 1.2 are poured into the tank. What will be the pressure (in kPa) at a point situated at a height, half the height of the beaker?

asked Jan 30, 2022 in Fluid Mechanics by Charlotte (118k points)

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