Exercise 27. Make questions to the underlined words

1. Types of engines, their number and location on the airplane depend on the airplane performances.

2. Jet engines fall into two main classes: air-breathing engines and rocket engines.

3. The jet is produced by the combustion of the fuel in the compressed air.

4. Rockets find extensive use.

5. The simplest type of air-breathing engines is the ramjet engine.

6. The main components of the ramjet are: the diffuser, the combustion chamber and the jet nozzle.

7. Turbofans are widely used in aviation, especially in large multi-engine aircraft.

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Exercise 28. Ask about different types of engines according to their design, operation and application. Answer the questions.

1. What does … consist of (include, comprise)?

… consists of (include, comprise) ….

2. What is the function of …?

Its function is to ….

3. Where is … used (applied, utilized)?

It is used (applied, utilized) in ….

4. What … is (are) widely used?

… types are.

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Exercise 29. Complete the questions. Use the proper auxiliary verb.

1. How many parts … the turboshaft engine include?

2. What thrust … modern aircraft engines develop?

3. Where … the combustion products expand?

4. How much fuel … this engine consume?

5. When … the first turbojet appear?

6. Where … the air compressed?

7. What compressor … modern jet engines equipped with?

8. Where … the engines mounted?

9. Why … the jet engines widely used?

Exercise 30. Do you know the history of the aircraft engine construction in Russia? Complete the dialogue.

a. …?

b. The aircraft engine construction began in Russia at the end of the 19^th century with Mozhaisky’s steam engine and the steam turbine of the Russian engineer Kuzminsky.

a. …?

b. As far as I know Kuzminsky’s engine consisted of an air compressor, a combustion chamber and a multistage turbine.

a. …?

b. Such Russian scientists as V.Tatarinov, A.Ufimtsev, S.Grizodubov, B.Lutsky worked at the development of aircraft piston engines.

a. …?

b. The first piston engines had from 3 to 8 cylinders and produced 20-80 horse powers.

a. …?

b. In 1924 the M-11 air-cooled engine designed by Shvetsov went into serial production. It had high reliability, small size and weight and low coast.

a. …?

b. The U-2 (Po-2) training aircraft were powered by the M-11 engines for a long time.

a. …?

b. Such names as V.Klimov, A.Kuznetsov, A.Mikulin, A.Shvetsov, A.Lulka have become famous in our country as well as abroad.

a. …?

b. They constructed powerful and reliable turbojet and turboprop engines.

a. …?

b. The PS-90 turbofan engine designed by P.Solovyev is the best aircraft engine in the world.

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