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I. Reading Exercises:

Exercise 1. Read and memorize using a dictionary:

additive; coolant; crankcase; evaporation; gauge reading; head gasket; heat exchanger; internal combustion engine; leak; loop; rust; spark plug;

Exercise 2. Answer the questions:

1) How much does a gallon of gasoline produce heat energy when it is burned?

2) What does an efficient cooling system require?

3) What is needed to keep the cooling system in good operating condition?

4) What is the reason for checking the coolant level regularly?

5) What does it mean when the system does not hold pressure?

Exercise 3. Match the left part with the right:

1. A tight system should hold the maximum rated pressure for at least

a) have found an internal leak.

2. If the system does not hold pressure, you

b) evaporation from the reservoir.

3. Most vehicles will lose a little coolant over time due to

c) the O2 sensor.

4. The silicate corrosion inhibitors in conventional antifreeze will poison

d) two minutes with no drop in the gauge reading.

Exercise 4. Open brackets choosing the right words: If no leaks are (lost/found), the loss of coolant may be due to long-term neglect or a temporary episode of overheating. Has your engine (overheated/cooled) recently? A defective cooling fan, slipping drive belt, exhaust restriction or even overloading the engine may have (dropped/caused) the system to get too hot and boil over.

II. Speaking Exercises:

Exercise 1. Describe heat exchanger;  pump;  additive; radiator using the suggested words and expressions as in example:

combustion  

burning; gas; liquid; solid; the fuel; heat; light;

Combustion is the process when the burning of gas, liquid, or solid, in which the fuel is oxidized, evolves heat and often light.

heat exchanger  

device; an automobile radiator; transfer; heat; fluid; environment;

pump

machine; to draw; fluid; an entrance port; to force; an exhaust port;

additive  

substance; to add; to strengthen; for the purpose of improving; performance; product;

radiator

any of numerous devices; units; surfaces; to emit heat; objects in the space; installed;

Exercise 2. Ask questions to the given answers:

  1. Question: ___________________________________________ ?

Answer: The radiator also has to be fairly efficient at getting rid of the heat.

  1. Question: ___________________________________________ ?

Answer: The coolant must also have the right mix of water and antifreeze to provide adequate freezing and boiling protection.

  1. Question: ___________________________________________ ?

Answer: To keep the cooling system in good operating condition, it is important to check the level, strength and condition of the coolant on a regular basis.

  1. Question: ___________________________________________ ?

Answer: The level should be checked at the coolant reservoir, not the radiator, because the radiator will siphon coolant from the reservoir when it is needed.

  1. Question: ___________________________________________ ?

Answer: A tight system should hold the maximum rated pressure for at least two minutes with no drop in the gauge reading.

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