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Date: 2015-10-07; view: 501.

Starter

Tanker Work

Topic 1

Liquid Cargo Handling

Unit 3

Discuss.

1. What types of tare is used for liquid cargo transportation?
2. What liquid cargoes are usually carried by sea?
3. What types of cargo are regarded as dangerous cargo? Why?

1Are the statements true or false?

1) Lubricants are usually loaded only in cask.

2) Tanks should be cleaned from previous cargo before loading oils.

3) A substantial water quantity is desirable in oil products.

4) Density, viscosity and flash point of oil may be neglected while carrying in tanks.

2Read the text, translate it and check your answers.

The most important liquid cargoes are oil products.

During the transportation and storage of such cargoes some of their properties should be taking into consideration. They are density, temperature of thickness, flash point, viscosity and water quantity.

Liquid oil products comprise: fuel oils, petrol, kerosene and lubricants.

Lubricating oils are loaded into oil tankers, containers, thermoses and sometimes in casks and cans. Iron casks and cans must be tightly closed with screwed plugs. While transporting iron casks and cans must be placed in strong wooden crates.

Oil products are carried by oil tankers which have some oil tanks, pumps and oil-conducting pipe lines for loading and unloading liquid cargoes. Each tank has a hermetically sealed hatch cover of about 60 cm in diameter. Since some oil products give off explosive gases, oil tanks are fitted with special tubes for giving gases the way to escape.

Oil tanks and cisterns should be in good state, and before loading the personnel's duty is to clear them from the residue of previous cargoes or any dirt, water or sand.

3Discuss.