IELTS Academic Writing Task 1 with answer.
The diagram below shows the structure of a basic rocket engine.
Summarize the information by selecting and reporting the main features, and make comparisons where relevant.
You should spend about 20 minutes on this task.
You should write at least 150 words.
Combustion Process in Rocket Engines
IELTS Academic Writing Task 1: Sample Answer
The given diagram presents information about the structure of a basic rocket engine and also shows how a combustion process in rocket engine works using the rocket fuel and oxygen.
As is presented in the illustration, fuel and oxygen tanks are placed above the combustion chamber separately. The fuel tank and oxygen tank both have pump which are extended to the combustion chamber. While the oxygen pump went straight to the combustion engine, the fuel pump has a non-linear shape. The pumps are used to control the fuel and oxygen supply to the combustion chamber. The combustion chamber is a rectangular shaped part which combines the fuel and oxygen passed through the injectors and produce combustion for the energy needed to drive the rocket. A nozzle is connected at the end of the combustion chamber which supplies the mixture of fuel and oxygen as a combustion product to the other part of the engine.