Common questions

What does Loll mean in texting?

What does Loll mean in texting?

Laugh Out Loud

What is the definition of loll?

1 : to hang loosely or laxly : droop a dog with its tongue lolling out. 2 : to act or move in a lax, lazy, or indolent manner : lounge He lolled around in his pajamas all day. transitive verb. : to let droop or dangle lolled his tongue out in contempt. loll.

What is a synonym for Loll?

Some common synonyms of loll are idle, laze, loaf, and lounge.

What is loll in ship stability?

Angle of loll is the state of a ship that is unstable when upright (i.e. has a negative metacentric height) and therefore takes on an angle of heel to either port or starboard. When this occurs, the vessel goes to neutral equilibrium, and the angle of heel at which it happens is called angle of loll.

What we must do in order to correct the Loll?

An angle of loll can be corrected only by lowering the centre of gravity, not by moving loads transversely. This can be done by moving weight downwards, adding water ballast in double bottom tanks or removing weight above the ship vertical centre of gravity.

What is the importance of metacentric height?

A larger metacentric height implies greater initial stability against overturning. The metacentric height also influences the natural period of rolling of a hull, with very large metacentric heights being associated with shorter periods of roll which are uncomfortable for passengers.

What does Metacentric mean?

1 : of or relating to a metacenter. 2 : having the centromere medially situated so that the two chromosomal arms are of roughly equal length.

Does Metacentre depend on Centre of gravity?

Originally Answered: Does the position of the metacentre depend on the position of the centre of gravity? Yes. The stability increases with the distance between metacentre and centre of gravity, called the metacentric height.

What are the conditions of equilibrium of a floating body?

→ The following are the conditions for equilibrium for a floating body : ↪The weight of the liquid displaced by the immersed part must be equal to the weight of the body . ↪The centre of gravity and the centre of buoyancy of the body should be along the same vertical line .8

What do you think is the free surface effect in a ship?

Free Surface Effect Of Ships: When any tank or a compartment is partially filled, the motion of the liquid (due to the ship’s rolling and pitching motions) would reduce the stability of the ship.9

How does the free surface occur?

In naval architecture and marine safety, the free surface effect occurs when liquids or granular materials under a free surface in partially filled tanks or holds shift when the vessel heels. A liquid jet in air approximates a free surface jet.

What will happen if the ship continues to experience free surface effect?

The free-surface effect can endanger the ship or even lead to a negative metacentric height. Therefore the number of partially filled tanks should be kept to a minimum. When ballasting the vessel, only one transverse pair or a single centerline ballast tank should be filled up.

How does a ship lose stability?

If a ship is grounded in a region where the water level is descending, at a certain draught it can lose stability. The angle of loll cannot be corrected by moving masses transversely; such an action can endanger the ship. Angles of loll should be corrected only by lowering the centre of gravity.

What happens when a ship lists?

The angle of list is the degree to which a vessel heels (leans or tilts) to either port or starboard at equilibrium—with no external forces acting upon it. Listing is caused by the off-centerline distribution of weight aboard due to uneven loading or to flooding.

What do you think is the difference between list and heel?

A list reduces the stability of the vessel. When a list is corrected by increasing the displacement mass, the additional weight should be placed as low as possible in the vessel. A vessel is said to be heeled when it is inclined by an external force, e.g. from waves or the wind.

What is it called when a ship tilts?

“Listing” is a nautical term to describe when a vessel takes on water and tilts to one side. A ship can list either to port (left) or starboard (right). Neither is desirable, as listing or rolling too much can cause a ship to capsize, or overturn in the water.18

What is trim and list?

The up/down rotation of a vessel about its transverse/Y (side-to-side or port-starboard) axis. An offset or deviation from normal on this axis is referred to as trim or out of trim. An offset or deviation from normal on this axis is referred to as list or heel.

What is weight displacement?

The displacement or displacement tonnage of a ship is its weight. As the term indicates, it is measured indirectly, using Archimedes’ principle, by first calculating the volume of water displaced by the ship, then converting that value into weight.

What are the steps of water displacement?

Step 7: Water Displacement Method

  1. Fill a beaker or graduated cylinder with enough water to completely immerse the sphere in.
  2. Record the baseline initial measurement.
  3. Drop the sphere in.
  4. Record final measurement.
  5. Subtract the initial volume from the final volume ~ this is the volume of the sphere!

Is displacement the same as weight?

Weight is a measurement on a scale. Displacement is a volume of water in the case of a boat.21

How do you calculate light weight of a ship?

weight are known collectively as lightship weight. The sum of deadweight and lightship weight is displacement—that is, the weight that must be equaled by the weight of displaced water if the ship is to float. Of course, the volume of water displaced by a ship is a function of the…

How do you calculate displacement of a ship?

When the “coefficient of fineness” of a vessel is known, its displacement tonnage is determined by multiplying its length, breadth, and draft by its “coefficient of fineness” and dividing the product by 35.

How is LDT calculated on a ship?

What is Gross Tonnage: Gross Tonnage is a measure of the ships total interior volume and is calculated by multiplying the interior volume “V” of the ship in cubic meters by a variable known as “K” (which varies depending on the ships overall volume).