Task 1. Find and write English equivalent of the following word combinations
Task 2. Decide if the statements are true or false. Correct the false ones
Task 3. Answer the questions
Task 4. Fill in the gaps with words from the text
Task 1. Find and write English equivalent of the following word combinations.
Четыре хода (такта) поршня – the four strokes of the piston;
поршневые двигатели – piston engines;
наибольшее количество машин – the greatest number of cars;
сжимает – compresses;
втягивает бензиновую смесь – draws in the petrol mixture;
первый ход поршня вниз – the first downstroke;
поставляет силу (энергию) – supplies the power;
следующим за сгоранием топлива – following the combustion of fuel;
удаляет сожженные газы – evacuates the burned gases;
второй ход поршня вверх – the second upstroke;
впуск (подвод) топлива – the intake of fuel;
впускной клапан – an intake valve;
выхлоп сожженных газов – exhaust of burned gases;
выхлопной клапан – an exhaust valve;
внезапное открывание выхлопного клапана – sudden opening of the exhaust valve
Task 2. Decide if the statements are true or false. Correct the false ones.
1) The four-cycle engine does three strokes of the piston per cycle. – False. The four-cycle engine does four strokes of the piston per cycle.
2) Few cars use piston engines. – False. The greatest number of cars use piston engines.
3) The first downstroke compresses the petrol mixture. – False. The first downstroke draws in the petrol mixture.
4) The power is supplied after the combustion of the fuel. – True.
Task 3. Answer the questions.
1) How many strokes of the piston does the four-cycle engine require per cycle? – The four-cycle engine requires four strokes of the piston per cycle.
2) What does the first upstroke do? – The first upstroke compresses the petrol mixture.
3) What stroke follows the combustion of the fuel? – The second downstroke follows the combustion of the fuel.
4) When are the burned gases evacuated? – The burned gases are evacuated after the second downstroke supplies the power.
Task 4. Fill in the gaps with words from the text.
The first downstroke draws in the petrol mixture. The power stroke following the combustion of the fuel supplies the power. Intake and exhaust valves control the intake of fuel and the release of burned gases.
