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

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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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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?

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

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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.

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

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

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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?

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A beaker half-filled with water is exposed to the atmosphere. If the pressure at points A, B and C as shown are Pa, Pb and Pc respectively, which one of the following will be the relation connecting the three?

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Differential manometer gives the pressure reading with respect to atmospheric 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.

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In liquids in order to measure the viscosity of fluid experimentally we consider the variation of shear stress with respect to what property?

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A beaker of height 30 cm is filled with water (Sw = 1) up to a height of 10 cm. Now oil (So = 0:9) is poured into the beaker till it is completely filled. At what distance (in cm) from the base will the pressure be one-third the pressure at the base of the beaker?

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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?

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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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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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An arm of a teapot is completely filled with tea (density=ρ) If the arm has a length of l and is inclined at 30^o to the horizontal, what will be the pressure difference between the two points, C at the mouth and D at the base of the arm?

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The arm of a teapot is 10 cm long and inclined at an angle of 60^o to the vertical. The center of the arm base is 2 cm above the base of the beaker. Water is poured into the beaker such that half the arm is filled with it. What will be the pressure at the base of the beaker if the atmospheric pressure is 101.3 kPa?

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. 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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A beaker of height 10 cm is half-filled with water (Sw = 1) and half-filled with oil (So = 1). At what distance (in cm) from the base will the pressure be half the pressure at the base of the beaker?

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

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A cuboidal container (each side of 30 cm0) is completely filled with water. A is a point, 25 cm above the base such that the pressure at point A is P. At what height (in cm) from the base will the pressure be 2P?

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

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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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