Which of the following cannot be the value of absolute pressure of a fluid at any point?

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Which of the following cannot be the value of absolute pressure of a fluid at any point?

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A student wants to find the absolute pressure of water at a point below the surface of water. He has a barometer and a manometer pressure gauge. The barometer reads 1.3152 bar where as the manometer pressure gauge reads 0.3152 bar. What is the absolute pressure? (Assume that pressure at one end of the manometer is atmospheric.)

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

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In the manometer given above, 2 immiscible fluids mercury (ρ = 13600 kg/m^3) and water (ρ = 1000 kg/m^3) are used as manometric fluids. The water end is exposed to atmosphere (100 kPa) and the mercury end is exposed to a gas. At this position, the interface between the fluids is at the bottom most point of the manometer. Ignore the width of the manometer tube and the radius of curvature. The value of h is found to be 9.45 m. The height of the mercury column is given to be 75 cm. Find the gauge pressure of the gas. (g = 9.8 m/s^2)

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

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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 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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In a U-tube manometer, one end is open to the atmosphere, the other end attached to a pressurized gas of gauge pressure 40 kPa. The height of the fluid column in the atmospheric side is 60 cm, and that on the gas side is 30 cm. The manometic fluid used is: (Take g = 9.8 m/s^2).

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In a stationary fluid, how does the local pressure of the fluid vary?

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Both ends of a U-tube manometer are exposed to the atmosphere. There exists a possibility that the height difference of the manometer is non-zero. True or False?

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

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A simple U-tube manometer can measure negative gauge pressures.

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A manometric liquid should suitably have _________

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As a balloon rises in the air its volume increases, at the end it acquires a stable height and cannot rise any further.

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The pressure at any given point of a non-moving fluid is called the ____________

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When body is completely or partially immersed in a fluid, how much its weight be distributed for it to be in stable equilibrium.

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How can relatively denser object be made to float on the less dense fluid?

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What is the principal cause of action of buoyant force on a body submerged partially or fully in fluid?

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In case of spherically shaped bodies of uniform mass distribution and completely immersed in fluid and floating, the centre of buoyancy coincides with centre of gravity.

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If the pressure at a point is 1m of water, what will be it’s value in terms of m of oil? (Take, the specific gravity of oil to be 0.8)

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A solid cylinder of 15 cm diameter and 40 cm long, consists of two parts made of different materials. The first part at the base is 1.5 cm long and of specific gravity=6.5. The other part of the cylinder is made of the material having specific gravity 0.75. State, if the it can float vertically in water.

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Find the density of metallic body which floats at the interface of mercury of sp.gr 13.6 and water such that 40 % of its volume is sub-merged in mercury and 60% in water.

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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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If the magnitude of dimension of a rectangular wooden block is length>breadth>height, then for it to float on the water, it should be immersed in what manner?

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The pressure at a point in the fluid is 4.9 N/cm2. Find height when the fluid under consideration is in oil of specific gravity of 0.85.

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The floating body is said to be in neutraL equilibrium if the metacentre is above the centre of gravity.

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The floating body is said to be in unstable equilibrium if the metacentre is below the centre of gravity.

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A cylinder of 0.8 m3 in volume contains superheated steam at 70℃ and .4 N/m^2 absolute pressure. The superheated steam is compressed to .3 . Find pressure and temperature.

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A gas weighs 16 N/m3 at 30℃ and at an absolute pressure of 0.35 N/mm^2. Determine the gas constant.

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Which of the following cannot be the value of absolute pressure of a fluid at any point?

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