Process Diagram

Band 6+: The diagram below shows how hydro-electric power is generated and supplied to different places.

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Image for topic: The diagram below shows how hydro-electric power is generated and supplied to different places.

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The image features a diagram illustrating the process of generating hydro-electric power and its supply chain. The diagram depicts the journey of water, starting from its evaporation due to the sun over the sea, leading to precipitation and collection in a reservoir. The reservoir is held back by a dam, and when the valve is opened, water flows through a pump to drive a turbine. The generated power is then transmitted through high voltage cables and an underground cable system to various establishments such as hospitals/schools and houses/apartments. Additionally, a nuclear power transformer station is depicted as playing a role in the process. No numerical data or percentages are provided.

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 working of hydro-electric power generation is demonstrated in the diagram.

Initially, the sea water is evaporated using the sun’s heat. Evaporation leads to form rainy clouds which rain at different regions. Hence, the rain water is stored in a reservoir like a dam. The collected water is further passed to the turbine by opening the valve. The turbine is rotated with the help of high-pressure water flow which generates electricity. Once the power is generated, the water is further moved to the reservoir with the help of a pump.

Meanwhile, the power generated from the turbine is passed to electricity poll using the high voltage cable lines. This cable lines further transmit power to the transformer station. Therefore, from the transformation station, electricity is supplied to hospitals, schools, industrials areas or houses using underground cables.

Overall, it is evident that the process of generating electricity take place near the reservoir region, which is transmitted to hospitals, schools and many other places using underground cables from the transformer station.

Word Count: 169

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Overall Band Score

6.5

(+/- 0.5)

Vocabulary Complexity:
C2 - Complex
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Grammar Mistakes: N/A

Vocabulary Repetition:

water: 5

power: 4

using: 4

electricity: 4

which: 3

reservoir: 3

further: 3

turbine: 3

station: 3

Try using synonyms for the above words

Task Response

The report adequately covers the main stages of the hydro-electric power generation process, from evaporation to electricity distribution. The overall structure is logical, with a clear overview. However, there are a few minor inaccuracies and omissions: the role of the nuclear power transformer station is not mentioned, and the description of the water flow after the turbine is slightly inaccurate (water typically flows to a lower reservoir or river, not back to the main reservoir). Additionally, some phrasing is informal or imprecise (e.g., 'electricity poll' instead of 'pylon' or 'transmission tower'). To improve, ensure all key components are described accurately and use more precise technical vocabulary.

Coherence & Cohesion

The report is logically organized and the process is described in a clear sequence. However, the use of cohesive devices is somewhat mechanical (e.g., 'Initially', 'Hence', 'Meanwhile', 'Therefore'), and some transitions could be smoother. The paragraphing is adequate, but the second paragraph could be better linked to the first. To improve, use a wider range of linking words and ensure each paragraph has a clear central topic.

Lexical Resource

The vocabulary is generally appropriate for the task, with some good attempts at technical terms (e.g., 'high voltage cable lines', 'transformer station'). However, there are some inaccuracies and awkward phrasings, such as 'electricity poll' (should be 'electricity pole'), 'industrials areas' (should be 'industrial areas'), and 'form rainy clouds' (should be 'form rain clouds'). The range of vocabulary is limited, and more precise and varied terms could be used (e.g., 'evaporation', 'precipitation', 'transmission'). To improve, expand your vocabulary related to processes and infrastructure, and ensure correct word forms.

Grammatical Range & Accuracy

The report uses a mix of simple and complex sentences, but there are several grammatical errors that affect clarity. For example, 'Evaporation leads to form rainy clouds' should be 'Evaporation leads to the formation of rain clouds', 'The turbine is rotated with the help of high-pressure water flow which generates electricity' could be more concise, and 'the process of generating electricity take place' should be 'takes place'. There are also issues with subject-verb agreement and article usage. To improve, focus on proofreading for common errors and practice using a wider range of grammatical structures with accuracy.

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