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Process Diagram

Band 8+: The diagram below shows how one type of coal is used to produce electricity.

Image for topic: The diagram below shows how one type of coal is used to produce electricity.
Our system will evaluate the answer based on this AI-generated description.
The image depicts the process of making electricity from coal, starting with a mine where coal is extracted, followed by a crusher that breaks the coal into smaller pieces, then transportation of coal to a gasifier. The gasifier converts coal into gas, which goes through a cooler before reaching the gas power plant. The gas power plant generates electricity that is distributed to houses and industries, while also producing heat waste. Solid waste is shown as a byproduct of the cooler.
Given the complexity of the image, the above description may not be entirely accurate.
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Note: Both the topic and the answer were created by one of our users.

The diagram illustrates the process of generating electricity from coal.

It is clear from the diagram that there are eight steps in the electricity production process, which starts from mining coal and is completed by supplying electricity to houses and industries.

Initially, coal is excavated from underground mines and then subjected to crushing to facilitate combustion and transportation to the gasifier by trucks. In which, coal is burned with high heat to create gas. Subsequently, this amount of gas is sent to a separate facility to be cooled off, at the same time, waste heat is released.

Following this, cool gas is cleaned and then becomes the input for a gas power plant. While electricity is generated in the power plant, excessive heat is released as a source of waste. Finally, the electricity generated is supplied to households and industries for various applications. It is noteworthy that the cooling process generates solid waste as depicted in the diagram, emphasizing the comprehensive nature of the electricity production from coal.

Word Count: 168

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Overall Band Score

8
(+/- 0.5)
Vocabulary Complexity:
C2 - Complex
Continue to challenge and refine your language choices.
Grammar Mistakes: N/A
Vocabulary Repetition:
electricity: 6
diagram: 3
process: 3
waste: 3
Try using synonyms for the above words

Task Response

8
The report provides a clear overview of the process of generating electricity from coal, covering the key stages mentioned in the description. The report could benefit from a more detailed description of each stage to enhance the task response further.

Coherence & Cohesion

8
The report is well-organized with a clear structure and logical progression of ideas. The use of cohesive devices helps in maintaining the flow of information. To improve coherence and cohesion, consider using more varied transition signals and ensuring smoother connections between sentences.

Lexical Resource

8
The report demonstrates a good range of vocabulary related to the topic. There is a precise use of technical terms and a variety of descriptive language. To enhance the lexical resource further, try incorporating more specialized vocabulary related to electricity production and coal processing.

Grammatical Range & Accuracy

8
A wide range of grammatical structures is used effectively throughout the report. The sentences are mostly accurate, with minor errors that do not impede understanding. To improve grammatical range and accuracy, pay attention to subject-verb agreement and the use of complex sentence structures.

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