Process Diagram

Band 7+: You should spend about 20 minutes on this task. The diagram shows the different stages in the production of lead. Summarise the information by selecting and reporting the main features, and make comparisons where relevant. Write at least 150 words.

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Image for topic: You should spend about 20 minutes on this task. The diagram shows the different stages in the production of lead. Summarise the information by selecting and reporting the main features, and make comparisons where relevant. Write at least 150 words.

Our system will evaluate the answer based on this AI-generated description.

The image illustrates an 8-step process: 1. Mining the rock (containing lead and oth metal); 2. Transporting to factory; 3. Crushing, with water added; 4. Mixing in a tank with water to create a lead mix; 5. Filtering, with pine oil added; 6. Refining via heating at 1400°C, which produces waste gas and melted lead and other metals; 7. Separating in a kettle, removing other metals as waste; 8. Casting.

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 by which rock containing lead and other metals is transformed into lead bars.

Overall, the process consists of eight stages, beginning with the mining of lead-containing rock and ending with the casting of lead bars.These stages can be broadly grouped into three main phases raw material preparation, the main processing stage , and the final stage.

The process begins when rock that contain lead and other metal is mined and transported to factory. Following this, the raw material is crushed before being transferred to a tank. Once this step is completed, the crushed rock undergoes a mixing process which water and pine oil is added to the mixture.

Afterward, the process continues with a filtering process in order to remove unwanted materials from the mixture. The next step involves refining the substances by heating it at 1400 degrees Celcius. After being refined, the melted lead and other metals are then seperated, where other metals are removed while lead is cast into bars, marking the end of the process.

Word Count: 173

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Overall Band Score

7.5

(+/- 0.5)

Vocabulary Complexity:
C1 - Intricate
Strive to incorporate even richer and more precise language.

Grammar Mistakes: N/A

Vocabulary Repetition:

process: 7

other: 4

metals: 3

Try using synonyms for the above words

Task Response

The report fully satisfies the requirements of the task. It provides a clear overview of the process, logically groups the stages into phases, and accurately describes the sequence of events from mining to casting. The progression of information is smooth, and all key steps mentioned in the visual description are included. To further improve, ensure consistent subject-verb agreement (e.g., 'rock that contains' instead of 'rock that contain'), but this does not detract from the overall high quality of the response.

Coherence & Cohesion

The report is logically organized and follows a clear chronological sequence, which makes the process easy to follow. The use of cohesive devices such as 'Following this', 'Once this step is completed', and 'Afterward' helps guide the reader through the stages. However, there is a minor punctuation error in the overview where a colon or dash is needed to introduce the three main phases (e.g., '...three main phases: raw material preparation...'). To improve, ensure that transitions between sentences are smoother and that punctuation is used correctly to separate complex ideas.

Lexical Resource

The vocabulary used is appropriate for a process description, with terms like 'transformed', 'undergoes', and 'refining' used effectively. There is a good attempt to paraphrase the stages. To reach a higher band, try to incorporate more sophisticated synonyms and varied collocations to avoid repetition (e.g., instead of repeating 'process' frequently, use 'procedure', 'sequence', or 'cycle').

Grammatical Range & Accuracy

The report demonstrates a mix of simple and complex sentence structures. However, there are several grammatical inaccuracies that affect the flow. Specifically, there are issues with subject-verb agreement (e.g., 'rock that contain' should be 'rock that contains') and relative clauses (e.g., 'mixing process which water and pine oil is added' should be 'mixing process in which water and pine oil are added'). Additionally, ensure singular/plural consistency (e.g., 'heating it' referring to 'substances'). Improving accuracy in these fundamental areas will significantly boost the score.

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