Match the terms with their definitions.

1. In this type of engine energy is derived a. jet engine

from a chemical reaction which takes

place inside the engine.

2. This is the combination of a turbine b. piston engine

and a propeller.

3. This type of engine contains propellant c. turboprop engine

components within the vehicle itself.

4. In this type of engine a piston and d. turbofan engine

connecting rods drive a rotating

crankshaft.

5. In this type of engine heated air is e. internal combustion engine

ejected with a high velocity producing

thrust.

6. This type of engine combines the f. rocket engine

turbine and the fan.

 

Explain the terms in your own words.

Supersonic speed, excessive heat, heat exchanger, vacuum, cooling system.

 

Answer the following questions.

1. What is the most essential part of any airplane?

2. Why were the piston engines almost exclusively used for the first forty years of

powered flight?

3. What engines does the term “internal combustion engine” refer to?

4. What is the jet propulsion device?

5. What device can provide interplanetary travel?

6. What is the main limitation for interplanetary travel?

7. What are the main problems connected with using of atomic energy as a source of

power?

 

Vocabulary Focus

Match words in A with words B to form the word combinations.

A B

maintain speed

jet engine

exhaust vehicle

interplanetary rod

shielding reaction

operating flight

sonic principle

connecting mass

chemical material

reliable propulsion

 

Translate into English.

Отводить избыточное тепло, прямоточный воздушно-реактивный двигатель, защитить экипаж, ограничение, существенное отличие, ЛА тяжелее воздуха, топливная смесь, приводить в движение самолёт, защитный материал.

 

3. Give the English equivalents to the words in the brackets.

1. The aircraft power plant must be (надёжный).

2. It was needed an airplane possessing (высокие лётные качества).

3. Piston engines are classified according to the (система охлаждения ) as (с воздушным охлаждением) and (жидкостным охлаждением) engines.

4. The (традиционный) piston engines are not suitable for speeds in excess of 500 mph.

5. A rocket engine can provide a possible (средство) for interplanetary (транспортное средство).

6. The problem is to use atomic energy as a (источник энергии).

7. One of the main problems is the design of efficient (теплообменник).

 

In the text highlight the word and phrases which mean the same as these phrases.

Safe, to support (A); to obtain, aim (C); operate (D); restriction, airscrew (E); fuel, aircraft (H).

 

 

Writing