What is taking a sounding?

to try to find out people’s opinions on a subject.

What are the two types of sounding?

Sound can be of different types—soft, loud, pleasant, unpleasant, musical, audible (can be heard), inaudible (cannot be heard), etc. Some sounds may fall into more than one category. For instance, the sound produced when an aeroplane takes off is both loud and unpleasant.

How is ullage sounding calculated?

When measuring level by ullage method, the sounding tape is inserted only till the bob/ tape touches some part of the fluid top surface. Instead of measuring the whole depth of the tank, only the free space (from the top of sounding pipe to liquid surface) is measured (Check Figure).

How does a sounding line work?

A sounding line (a rope that has a weight attached) is lowered over the side of the ship. When the weight hits the seafloor, the line goes slack, and is marked at the water’s surface. The weight is pulled back up and the distance from the surface mark to the weight is measured.

How do you take a sounding of tanks by Innage?

An innage is typically only taken when you know the tank is near empty. To take an innage, (a measure of the liquid in the tank, from the bottom of the tank to the top of the liquid), use the pointed weight, and attach it to the tape measure and lower that thing down your tube.

What are ullage and ullage precautions?

Following care should be taken: When an ullage port is opened, do not inhale outflow gas nor expose the body to emanating gas. ii) Ensure proper use of the bonding cable to avoid generation of sparks. iii) Positively close the openings, after completion of gauging / sampling.

What is sounding line used for?

n. A line marked at intervals of fathoms and weighted at one end, used to determine the depth of water.

How does a plummet and sounding line work?

A sounding line or lead line is a length of thin rope with a plummet, generally of lead, at its end. Regardless of the actual composition of the plummet, it is still called a “lead”. Leads were swung, or cast, by a leadsman, usually standing in the chains of a ship, up against the shrouds.

What is ullage fuel tank?

Ullage is the void space in the tank measured from the top of the tank to the upper surface of the fluid. Ullage is measured when the content of a tank is highly viscous and if the tank is filled to the maximum. Sounding pipe is constructed in the tank. Thus, sounding of the pipe becomes sounding of the tank.

What kind of sounding tape do you use?

Sounding Tape comes in meter or feet metric with bob is mostly of cylindrical shape and Torpedo shape. Torpedo (Dip-weight in the form of a rod, terminating in a truncated cone at the lower end) shape is more commonly used for thicker liquid as the cone penetrates the oil/sludge more easily.

How does a sounding tape work on a tank?

When it strikes the bottom of the tank, the level of liquid in the tank, makes an impression on the “sounding tape” so that if we coil up the tape, the impression of content of the tank is seen and the readings are noted. The noted reading indicates the height of the liquid in the tank.

How is water finding paste applied to sounding tape?

Apply the water finding paste onto the sounding tape in the area of estimated depth. Drop the sounding tape inside the sounding pipe. Ensure the bob strikes the striker plate at the bottom of the tank. Coil up the tape looking up for the impression. The level is seen as change in color of the paste.