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II. Philip, a student of Automotive Engineering, has met his friend Alex in the laboratory testing. Listen to their dialogue and learn the basic principle of the carburettor operation.
Philip: Hello, Alex! What are you doing? Alex: Well, I'm studying the fuel system of this car. Now I can tell you a lot about the basic principles of its operation. Philip: Really? O.K. Let me see. Do you know the name of that little device near the engine? Alex: Sure, it's called a carburettor. Philip: And what is it used for? Alex: Well, it measures out a precise amount of fuel that is mixed with the correct amount of air. Philip: And do you know the principle of the carburettor operation? Alex: Oh, that's easy. First, air is drawn down the air intake (it is located directly above the carburettor) into a venturi where its pressure is lowered. That's why, the fuel will flow into the venturi. Philip; Will it flow because of the low pressure of the air? Alex: Right you are. Then the air is mixed with the fuel before this mixture is taken into the cylinder combustion chamber. Philip: Is it really? And what happens with this fuel mixture in the cylinder combustion chamber? Alex: It is ignited there and is drawn into the engine afterwards. Philip: I see. III. Complete the dialogues. 1. A: What are you doing now? B: … A: Can you tell me anything about it? B: … 2. A: … B: Oh, it's called a carburettor. A: And what is it used for? B: … A: … B: That's easy. First air is drawn down the air intake into a venturi. A: Where is the air intake located? B: … A: And what happens next? B: … A: I see.
IV. Match a line in A with a line in B.
Language Practice I. Match the English words with their Ukrainian equivalents.
II. Fill in the table with the missing forms of the following words. Use your dictionary if necessary.
III. Analyse the word combinations in the table and translate the following combinations into Ukrainian
the land transport tile land transport problem the internal combustion engine the internal combustion engine improvement the vehicle motion the vehicle motion control the control device the control device application
IV. Change the following sentences so as to use Present Simple Passive. Follow the model. EXAMPLE: A: We obtain petrol from petroleum. B: Petrol is obtained from petroleum. 1. An engine produces power. 2. We usually use oil in different branches of industry. 3. They provide us with the necessary equipment. 4. The engineer controls the fuel systems. 5. Nowadays they made pistons from plastics.
V. Give the opposite to the following sentences. 1. This mechanism is used in the engine. 2. Power is not produced by the engine. 3. Fuel is burnt in the engine to produce power. 4. Fuel and air are not mixed in the carburettor.
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