- •Vacuum technology development
- •1. Words to be remembered.
- •2. Translate the sentences. Pay attention to the words in italics.
- •5. Decide whether the following statements are true or false according to text a.
- •6. Answer the following questions to text a.
- •7. Read text b carefully paying attention to the words in bold type.
- •8. Decide whether the following statements are true or false according to text b.
- •9. Answer the questions to text b.
- •10. Match the words with the synonyms.
- •14. Match the parts of the sentences.
- •16. Grammar Tutorials: Word Order, Miscellaneous
- •17. Translate the following sentences. Notice the difference in the underlined words.
- •19. Translate the text from Russian into English. Use the list of words below for help.
- •Unit II. Theory of pvd Coatings
- •1. Words to be remembered.
- •1. Words to be remembered.
- •2. Translate the sentences. Pay attention to the words in italics.
- •3. Read text a carefully paying attention to the words in bold type.
- •4. Decide whether the following statements are true or false according to text a.
- •5. Answer the following questions to text a.
- •6. Read text b carefully paying attention to the words in bold type.
- •7. Decide whether the following statements are true or false according to text b.
- •8. Answer the questions to text b.
- •10. Make sure you know the meanings of these words. Match the words with their definitions.
- •11. Match the words with the synonyms (text a).
- •12. Match the same words with the antonyms (text a).
- •13. Translate the text on theory and practical use of pvd coatings, study the structure of TiAln. Make its technical and non-technical description.
- •14. Scan the text about Copper (Cu) carefully. Use the scattered Nouns – Verbs – Adjectives – Adverbial Modifiers to make as many correct sentences-statements as possible.
- •17. See the difference in the following words. Use a dictionary. Read all of them aloud. Make some sentences of your own. Some eight examples are given for you.
- •20. Learn the poem “The Planets” by heart. Say, if gold, silver and lead are used in vacuum technologies. What does present-day science say about the content of metals in the planets? The Planets
- •21. Practice makes perfect. Translate the text on Vacuum history in a written form.
- •24. Scan the biography of Michael Faraday. Put questions to the answers given below.
- •25. Look through the texts a-b again and make notes under the following headings. Then use your notes to talk about it.
- •History
- •II. Home Appliances II: Vacuum-Cleaner
- •20. Scan the biography. Put questions to the given answers.
- •Reading, Vocabulary & Creative Practice
- •1. Words to be remembered.
- •2. Translate the sentences. Pay attention to the words in italics.
- •3. Read text a. Pay attention to the words in bold type.
- •4. Decide whether the following statements are true or false according to text a.
- •5. Answer the questions to text a.
- •6. Read text b. Pay attention to the words in bold type.
- •7. Decide whether the following statements are true or false according to text b.
- •8. Answer the questions to text b.
- •13. Special Quiz. Think of the better way to remember the most of the vocabulary and the vacuum pump classification. Share your opinion on it with your partner.
- •Russian English
- •II. Классификация вакуумных насосов по принципу действия
- •15. A) Open the brackets giving the right forms of the words; b) Translate the text “Cryopump” in a written form; c) Compare texts 15.1 and 15.2.
- •16. Grammar Tutorials: Question Technique Read and give a title to the text. Put questions to the given answers.
- •18. Translate from Russian into English. Use the proper grammar rules and the prompting words in brackets.
- •19. Read the text “Pump Accessories”. Pay attention to the abbreviations, and Stone Wall Constructions. Summarize the text.
- •20. Translate the following abbreviations and Stone Wall Constructions.
- •21. Read about some pumps’ features and benefits. Pay attention to the suffixes in the words, describing the pumps. Using the descriptive words, try to persuade the customers to buy the pumps.
- •23. Make notes under the following headings. Then use your notes to talk about it.
- •Unit VI. Pumps and Compressors
- •“First, be sure a thing is wanted or needed, then go ahead.” Thomas Edison.
- •1. Words to be remembered.
- •2. Translate the sentences. Pay attention to the words in italics.
- •3. Read the text a. Pay attention to the words in bold type.
- •4. Decide whether the following statements are true or false according to text a.
- •5. Answer the questions to text a.
- •6. Read text b. Pay attention to the words in bold type.
- •7. Decide whether the following statements are true or false according to text b.
- •8. Answer the questions to text b.
- •10. Match the words with the synonyms.
- •11. Match the words with the antonyms.
- •12. Fill in the correct prepositions.
- •13. Open the brackets. Give the right forms of the words in bold. Translate the text in a written form.
- •14. Special Quiz. Read about the uses of compressors. Match the parts of the sentences making the sentences complete. Start from: Gas compressors are used … … .
- •17. Study the key words to the crossword from Unit III.
- •18. Engineer tested. Do you believe …
- •19. Study the compressor refrigerator schematic, operation and construction. Discuss the information in dialogues. How do you see the compressor refrigerator in the future?
- •Construction
- •20. Scan the biography both I) in English and II) in Russian. Make a close look at English and Russian versions. Find and write down the differences.
- •Follow-up Activity
- •21. Make notes under the following headings. Then use your notes to talk about it.
- •1. Kinetic Devices (General View).
- •Unit VII. Vacuum Engineering and Its Prospects
- •1. Words to be remembered.
- •2. Translate the sentences. Pay attention to the words in italics.
- •3. Read text a. Pay attention to the words in bold type.
- •4. Decide whether the following statements are true or false according to text a.
- •5. Answer the questions to text a.
- •6. Read text b. Pay attention to the words in bold type.
- •7. Decide whether the following statements are true or false according to text b.
- •8. Answer the questions to text b.
- •9. Make sure you know the meanings of these words. Match the words with their definitions. Consult the dictionaries.
- •10. Match the words with the synonyms.
- •11. Match the same words with the antonyms.
- •12. Fill in the correct prepositions.
- •13. Scan the text. Make its summary in Russian then give English translation of the summary.
- •14. 1) Scan the biography of Sir William Crookes. Pay attention to the underlined words and notions. Say or write what you know about them.
- •14. 2) Scan the biography of John Dalton. Put questions to the given answers.
- •15. Scan the article “Vacuum Technology Developed to Control Insects in Wood.” Divide the text into logical parts.
- •17. Read the advertisement. Make everybody trust the method described.
- •19. Read the article “Japanese Camera Used to Test Innovation.” Make up some 3–5 statements of your own which might be a summary to the article.
- •20. Study the suggested key answers to the previous tasks.
- •21. Make notes under the following headings. Then use your notes to talk about it.
- •Permissible pressure units including the torr 1) and its conversion
- •Vocabulary Terms And Abbreviations Used In Vacuum Engineering
- •Casing n оболочка, обшивка; отливка, литье
- •Confine V удерживать
- •Deliberate adj умышленный, обдуманный
- •Develop V развивать, строить, подготавливать, совершенствовать
- •Drastic adj глубокий, интенсивный, резкий
- •Drift n наклонный ствол, отклонение
- •Neutral n нейтральный
- •Vacuum technology development
- •220013, Минск, проспект Независимости, 65.
Reading, Vocabulary & Creative Practice
1. Words to be remembered.
admission enclose ion pump regenerate
absorb entrapment inlet rotary p.
container equalize jet saturate
contract evacuate momentum seal
cost-effective exert outlet stall
cryopump exhaust piston pump transfer p.
diffusion p. fan portable technique
dissolve fluid dynamics positive valve
dust force p. prevent vapor
efficient p. getter p. property condensate
2. Translate the sentences. Pay attention to the words in italics.
1. Pumps differ in details like pressure, tolerance to dust, admission or no admission of oils vapor.
2. Metal contracts as it becomes cool.
3. They discovered that it was more cost-effective to import the pumps from Russia than to manufacture them in Belarus.
4. Sugar dissolves in water.
5. The car raised a cloud of dust as it went down the dirt road.
6. A cryo-pump is a vacuum pump that traps gases and vapors by condensing them on a cold surface.
7. She couldn’t open the door, even by exerting all her strength.
8. The garden is enclosed by a high wall.
9. The firemen directed jets of water at the burning building.
10. As the rock rolled down the mountainside, it gathered momentum.
11. Unless we get more funding we’ll be prevented from finishing our experimental program.
12. This creature’s tail will regenerate if it is cut off.
13. We were caught in the rain and came home saturated.
14. An inexperienced pilot can easily stall his plane.
15. The valves of the heart and blood vessels allow the blood to pass in one direction only.
3. Read text a. Pay attention to the words in bold type.
A. What is a Vacuum Pump?
Vacuum pump is a device for reducing the pressure of a gas in a vessel by removing the gas. The German scientist Otto von Guericke was the first to demonstrate the properties of vacuums in a practical way by his well-known “Magdeburg Experiment” in 1654. The scientist joined two small copper hemispheres (i.e., 20 inches [51 cm] in diameter) in an enclosed space. Then he pumped the air out of that enclosure and rigged a team of eight horses together to attempt to separate the hemispheres. The horses could not pull them apart. Once air was allowed back into the container the spheres were easily moved apart. Thus the power of the vacuum was realized. The scientist’s first pumps were inverted pumps (for fire fighting) and could evacuate larger volumes of air than could be done using static methods.
In 1643 Torricelli demonstrated the mercury barometer based on the water manometer of Berti (~1640). In 1662 Boyle formulated Boyle’s Law, Law of Partial Pressures.
Piston-type Vacuum pumps came into widespread use, but vacuum experiments had to be continued – the seals available at that time were poor.
The vacuum pump was originally invented to help chemists to study the properties of gases and the newly discovered phenomenon called electricity. The history of progress in the study of vacuum is the history of vacuum-pump design. Before 1900, vacuum pumps were produced by crude, hand-operated pumps. In the 20th century the rotary oil pump, the molecular pump, the vapor condensation pump, and the oil diffusion pump were developed. These pumps made a high vacuum possible. With modern techniques all but one of every million molecules in a container can be removed. Pressure can be reduced to 0.00000000001 millimeter of mercury as compared to normal atmospheric pressure of 760 millimeters. Thus, efficient pumps can reduce the pressure of the gas to between 100 and 0.1 pascal
The air of our atmosphere exerts great pressure to enter an enclosed space, which is under high vacuum. It attempts to equalize pressure inside and outside. Dissolved gas molecules diffuse through solids and enter the evacuated space. Slow evaporation of solid materials, such as the container walls, also takes place. When molecules evaporate into a container as fast as other molecules are removed from it, a practical limit is reached, preventing a perfect vacuum. A pump is the device that expends energy to raise, transport, or compress fluids-liquids and gases.
Perhaps the best-known pump is the human heart. Blood enters the heart through a set of one-way inlet valves. As the fluid container – the heart contracts, pressure is increased and the blood is forced into the arteries through one-way outlet valves. In machines, only the fluid is compressed, rather than contracting the whole container. A vacuum pump removes air from a container to create a vacuum. Force pumps of many types are used for vacuum pumps including rotary pumps and piston pumps. In the 21st century the vacuum pump has become a major necessity for the progressive lifestyle.
Comprehension Check – 1