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Process Diagram

Band 7+: The diagram below shows how geothermal energy is used to produce electricity. Summarise the information by selecting and reporting the main features, and make comparisons where relevant.

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Image for topic: The diagram below shows how geothermal energy is used to produce electricity. Summarise the information by selecting and reporting the main features, and make comparisons where relevant.

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The image shows a labeled diagram of a geothermal power plant, with annotations indicating the flow of cold water down 4.5 km into the injection well, through the geothermal zone containing hot rocks, and up the production well as hot water, which powers a turbine connected to a generator that produces electricity, and then passes through a condenser to be pumped back down, completing the cycle.

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 given diagram illustrates the end to end process of production of electrical energy from geothermal energy.

Firstly, cold water from the surface of the earth is pumped down to a distance of 4-5 km into the injection well. The hot rocks, otherwise called geothermal zone, then absorbs this water from the well and ejects hot water to the production well, from where it is pumped up to condenser. The condenser is placed on the surface of the earth. Following this, the steam which gets generated in the condenser is pushed into the turbine which in turn, gets powered up. The turbine is connected to the generator, as a result of which the generator is turned on by the turbine. Finally, the powered-up generator creates electricity which is then distributed to the sub-stations.

Overall, the image gives a comprehensive idea about the working of a geothermal power plant to produce electricity.

Word Count: 151

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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:

which: 4

geothermal: 3

water: 3

condenser: 3

turbine: 3

generator: 3

Try using synonyms for the above words

Task Response

The report appropriately summarizes the main features of the process of producing electricity from geothermal energy. The overall process is well described, but there are a few minor inaccuracies in the details, such as the depth of the injection well and the location of the condenser.

Coherence & Cohesion

The report is generally well-organized and coherent. The information is presented in a logical sequence, and there is effective use of linking words to connect the different stages of the process. However, there are a few instances of repetition and some minor issues with pronoun reference.

Lexical Resource

The report demonstrates a good range of vocabulary, and there is an attempt to use some technical terms related to geothermal energy. However, there are some inaccuracies and imprecise word choices, and a more varied and precise vocabulary could be used to describe the process in more detail.

Grammatical Range & Accuracy

There is evidence of a fairly wide range of grammatical structures, and the majority of sentences are well-constructed. However, there are some errors in subject-verb agreement, tense usage, and word forms. Punctuation and sentence structure are generally accurate, but there are a few instances of awkward phrasing.

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Band 7+: The diagram below shows how geothermal energy is used to produce electricity. Summarise the information by selecting and reporting the main features, and make comparisons where relevant.

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Overall Band Score

Task Response

Coherence & Cohesion

Lexical Resource

Grammatical Range & Accuracy

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The diagram below shows how geothermal energy is used to produce electricity. Summarise the information by selecting and reporting the main features, and make comparisons where relevant.

The diagram below shows how geothermal energy is used to produce electricity. Summarise the information by selecting and reporting the main features, and make comparisons where relevant.

The diagram below shows how geothermal energy is used to produce electricity. Summarise the information by selecting and reporting the main features, and make comparisons where relevant.

The diagram below shows how geothermal energy is used to produce electricity. Summarise the information by selecting and reporting the main features, and make comparisons where relevant.

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