> Manual and Automatic Transmissions.
The transmission is a mechanism that changes speed and power ratios between the engine and driving wheels.
The conventional transmission provides for three or four forward speeds and one reverse speed. It consists of two shafts, each with gears of varying diameters. When a pair of gears permits the driven shaft to turn more rapidly than the driving shaft, the transmission is said to have overdrive. Overdrive is designed to increase the speed of a car.
The torque-converter type of transmission provides an unlimited number of gear ratios with no shifting of gears. The turbine is connected to drive shaft and causes it to rotate.
Both Hydra-Matic and torque-converter systems are controlled by a selector level on the steering column, which provides for reverse and sometimes for emergency-low gears.
1) What is transmission?
2) What does it consist of?
3) What is overdrive designed to?
Task 7. Восстановите правильную последовательность предложений в тексте.
Finding a fault in a car
a) It is easy to repair these faults.
b) If your car doesnt start in the morning, you should check three things first: the battery, the fuel level and the spark plugs.
c) If this doesnt work, you should replace it.
d) If the battery is flat, you should recharge it.
e) If the spark plugs are dirty, clean them, and if the gap in a spark plug is too narrow or too wide, adjust it to the correct width.
Task 8. Найдите неверное утверждение.
1) Petrol engines are usually lighter and smaller than diesel engines.
2) Diesel engines use less fuel and last longer than petrol engines.
3) Diesel engines are also safer than petrol engines, because they are less danger o
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