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Machinery and Education with vocabulary.doc
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11. Decide whether the following statements are true or false.

1. Everything is known about metals.

2. Metals are seldom used in high-rise building and bridge construction due to their strength and resilience.

3. Automobiles are built from metals such as steel, cast iron, aluminium, zinc and copper.

4. The process of manufacturing an automobile starts with stamping, forging, casting and machining of steel, aluminium, zinc, and plastics.

5. The overall weight of automobiles has increased.

6. The steel and cast iron content in some American vehicles has fallen.

7. The metal content of modern vehicles still remains at around 60 percent of the total weight.

8. The bumper in modern vehicles is shiny because it is covered in silver.

9. The bumper is covered with layers of three metals such as chromium, nickel and copper.

10. There are no possibilities for further reductions in metal weight content of passenger vehicles.

12. Answer the following questions.

1. What does high structural strength per unit mass make metals useful for?

2. Where are metals and metal alloys used?

3. How much steel does the body of the typical European car consist of?

4. What metal is used in the cylinder block and gearbox?

5. In what parts of cars is aluminium used?

6. What is copper in cars necessary for?

7. What is the first step in manufacturing an automobile?

8. How has the overall weight of automobiles changed as the demand for performance and reliability increased?

9. What is the metal content in modern vehicles?

10. What is chromium used in bumpers for?

11. How many metals cover the modern bumper?

12. Why is it necessary to reduce metal weight content of passenger vehicles?

13. Complete the grid. Look at these four clues and fill in the answers in the spaces provided below. You will find that you make a term-word in the vertical box. (You may hope for the key.)

1. Make or become better (7)

2. Harm or injury that causes loss of value (6)

3. Polish, shape or sharpen (5)

4. Examine (4)

1

2

3

4

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