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08.12.2021 23:00

Английский язык

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Упражнение 6. Выберите правильные по смыслу ответы на вопросы. ( Все предложения надо прописывать. ответы типа 1b, 2a не подойдут )

1. Why is the engine called the internal combustion engine?
2. What stroke is called the inlet one?
3. What is a compression stroke?
4. What takes place in the cylinder on power stroke?
5. What takes place on the exhaust stroke?
6. By means of what is the reciprocating movement of the pistons converted into rotary movement of a crankshaft?
1.
It is called so because the fuel (the mixture) is burned…
a)directly inside the engine;
b)outside the engine.
2. The inlet stroke is called so because during moving down the piston…
a) the inlet valve opens to intake a charge of fuel into the cylin der;
b)the inlet valve is closed and the mixture is compressed.
3.The compression stroke is a stroke
a) when the inlet valve opens to intake a charge of fuel into the cylinder;
b) when the inlet valve is closed and the mixture is compressed.
4. On power stroke
a)the spark plugs ignite the mixture, both valves are closed dur ing its combustion;
b)the exhaust valve is opened and the residual gas flows through the exhaust valve into the atmosphere.
5.On the exhaust stroke
a)the spark plugs ignite the mixture, both valves are closed dur ing its combustion;
b)the exhaust valve is opened and the residual gas flows through the exhaust valve into the atmosphere.
6. It is done
a)by means of pistons;
b)by means of the connecting rods.