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General statement Particular statement

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  1. Agree or disagree with the following statements, using the strategies of speaking. Give additional information to prove your agreement or disagreement. Use the model.
  2. Ex.3. Indicate whether each of the following statements is true or false.
  3. Exercise 15. Agree or disagree with the statements given below. The following phrases may be helpful.
  4. Exercise 2. Are these statements true or false?
  5. General Electric
  6. General Electric
  7. Reading for general understanding. Skim read the text. Think of a good title for it. Compare it with other students' titles.
  8. Say if the following statements are true or false
  9. STATEMENT OF TERMINATION OF SALVAGE ASSISTANCE RENDERED TO THE VESSEL IN DISTRESS
  10. Text 1. General Information.
  11. TEXT 1. THE ROLE OF AIR TRANSPORT IN GENERAL ECONOMIC AND SOCIAL DEVELOPMENT

1. Water boils at 100°C. The water in the kettle is boiling.

2. Air pressure is measured with The pressure on high mountain is a barometer. lower than at ground level.

3. Temperature is measured with Last Sunday the temperature

a thermometer. was +25°C.

4. Liquids are denser than gases. The liquid in this bottle is dense.

5. Oil contains sulphur. The oil in the North Sea contains

little sulphur.

XI. Open the brackets using the construction the … the.

1. (Чем раньше) a fire is detected, (тем легче) to put it out, and (тем меньше) the threat to the people.

2. (Чем выше) the temperature, (тем быстрее) the motion of the molecules and (тем больше) the pressure exerted on the walls of the container.

3. (Чем выше) the pressure of a gas, (тем выше) its temperature.

4. (Чем больше) a gas is compressed, (тем больше) its resistance to compression.

 

XII. This table represents the list of substances having an explosibility index. The indexes are arbitrary set at 1 for a dust equivalent to Standart Pittsburgh coal. The purpose of these indexes is to give a relative comparison of the hazard involved. An explosibility index of 1 to 10 is classified as a strong explosion; an index above 10 is classified as a severe explosion. Make predictions, from the Table, about the possibilities of the explosions.

 

Ways of expressing probabilities:

        high
  possibility   (extremely) strong
The probability that х will happen is    
  likelihood   (fairly) low
        weak
        nil

e.g.: The possibility that potato explosion will happen is extremly high.

 


Table

Explosibility Indexes

 

Products:

Potato starch 20.9

Corn 8.4

Corn starch 35.6

Wheat 2.5

Sugar 13.2

Coffee 0.1

 

Metal Powders:

Aluminium – magnesium alloy 10

Aluminium – copper alloy 0.3

Coal 1.0

Aluminium – silicon alloy 3.6

Iron 1.6

Magnesium 10

 

XIII. Read and translate into Russian the text “Explosions”.

 

XIV. Answer the questions:

1. How does the NFPA define an explosion?

2. What is the difference between a fire and an explosion?

3. What types of explosions do you know?

4. How many conditions are necessary for gas explosion?

5. What are they?

6. What characteristics are common for dust and vapour explosions?

7. What is the difference between vapour and dust explosions?

8. When does a chemical explosion happen?

XV. Read the first sentences of the paragraphs of the text and name the problems discussed in the text.

 

XVI. Find in the text sentences with the construction the … the … and translate them.

 

XVII. Find in the text sentences with the word cause and translate them.

 

XVIII. Find in the text the equivalents to the Russian phrases:

1. выделение тепла

2. вследствие

3. ограниченное пространство

4. создавать давление

5. способный нанести ущерб имуществу

6. иметь дело

7. угроза безопасности людей

8. избыточное давление

9. пределы воспламеняемости

10. единственная разница

11. при определенных условиях

12. пределы воспламеняемости

13. богатая (горючая) смесь

14. мгновенное воспламенение пыли

15. нижний предел взрываемости

16. горизонтальная поверхность

17. выйти из-под контроля

18. верхний предел взрываемости

19. источник возгорания.

 


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