Submarines use principle of ‘neutral buoyancy’ to go into the water.

Question

Submarines use principle of ‘neutral buoyancy’ to go into the water.

1 Answer

Related questions

+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)

+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)

+2 votes

1 answer

A stone weighs 450 N in air and 200 N in water. Compute the volume of stone.

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

+1 vote

1 answer

A stone weighs 650 N in air and 275 N in water. Compute its specific gravity.

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

+1 vote

1 answer

A body of dimensions 2.7 m * 3.8 m * 2.5 m, weighs 2500 N in water.Find its weight in air.

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

+1 vote

1 answer

What happens to the buoyant force acting on the airship as it rises in the air?

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

+2 votes

1 answer

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

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

+1 vote

1 answer

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

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

+2 votes

1 answer

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

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

+2 votes

1 answer

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

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

+1 vote

1 answer

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.

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

+1 vote

1 answer

The principle of floatation of bodies is based on the premise of

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

+1 vote

1 answer

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)

+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

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?

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 solid cylinder of diameter 5.0 m has a height of 6.0 m. Find the meta-centric height of the cylinder if the specific gravity of the material of cylinder 0.45 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

A solid cylinder of diameter 4.5 has a height of 2.5 metres. Find the meta-centric height of the cylinder when it is floating in water with its axis vertical. The sp. gr. of the cylinder=0.45.

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

+2 votes

1 answer

A block of material of specific gravity 0.45 floats in water. Determine the meta-centric height of the block if its size is 3 m * 2 m* 0.8 m.

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

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.

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

+1 vote

1 answer

A uniform body of size 4 m long * 2.5 m wide * 1.5 m deep floats in water. What is the weight of the body if depth of immersion is 1 m ?

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)

+1 vote

1 answer

A wooden cylinder of sp.gr. = 0.6 and circular in cross-section is required to float in oil(sp.gr. = 0.90). Find the L/D ratio for the cylinder to float with its longitudinal axis vertical in oil, where L is the height of cylinder and D is its diameter.

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

+1 vote

1 answer

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

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

Submarines use principle of ‘neutral buoyancy’ to go into the water.

Please log in or register to answer this question.

1 Answer

Please log in or register to add a comment.

Related questions

Categories