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).

Question

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).

1 Answer

Related questions

+1 vote

1 answer

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)

+1 vote

1 answer

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)

+1 vote

1 answer

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).

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

+2 votes

1 answer

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)

+2 votes

1 answer

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)

+1 vote

1 answer

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

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

+2 votes

1 answer

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)

+1 vote

1 answer

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)

+1 vote

1 answer

A tank of height 3 m 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. By what percent will the pressure at the base of the tank change?

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

+1 vote

1 answer

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

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

+2 votes

1 answer

A rectangular pontoon is 5 m long, 3 m wide and 1.40 m high. The depth of immersion of the pontoon is 0.60 m in seawater. If the centre of gravity is 0.7 m above the bottom of the pontoon, determine the metacentric height. The density for seawater = 1045 kg/m^3.

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

+1 vote

1 answer

A manometric liquid should suitably have _________

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

+1 vote

1 answer

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

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

+1 vote

1 answer

A water flows through a pipe at a velocity 2 m/s. The pressure gauge reading is 2 bar. The datum head is given to be 2 m. Find the piezometric head. (Assume all Bernoulli’s assumptions, Density of water = 1000 kg/m^3, g = 9.8 m/s^2).

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

+1 vote

1 answer

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)

+1 vote

1 answer

A student wishes to find the velocity of air flowing through a pipe. He has a pressure gauge which displays only the dynamic pressure. The pressure gauge reads 0.018 mm Hg. Assume density of air to be 1.225 kg/m^3, find the velocity V of air (ρHg = 13600 kg/m^3).

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

+2 votes

1 answer

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)

+1 vote

1 answer

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)

+2 votes

1 answer

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

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

+1 vote

1 answer

Find the discharge through totally drowned orifice of width 2.3 m if the difference of water levels on both side of the orifice be 40 cm. The height of water from to and bottom of the orifice are 2.6 m and 2.75 m respectively.

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

+1 vote

1 answer

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.

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

+1 vote

1 answer

A cylinder(uniform density distribution) of radius 3.0 m has a height of 9.0 m. The specific gravity of the material of cylinder 0.85 and it is floating in water with its axis vertical. State whether the equilibrium is stable or unstable.

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

+1 vote

1 answer

Find the position of centre of buoyancy for a wooden block of width 3.5 m and depth 1 m, when it floats horizontally in water. The density of wooden block id 850 kg/m3 and its length 7.0 m.

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

+2 votes

1 answer

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

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

+2 votes

1 answer

Water flows through a circular tube with a velocity of 2 m/s. The diameter of the pipe is 14 cm. Take kinematic viscosity of water 10^-6 m^2/s and density of water 1000 kg/m^3.

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

Please log in or register to answer this question.

1 Answer

Please log in or register to add a comment.

Related questions

Categories