Process Diagram

Band 7+: The diagrams below shows how a central heating systems in a house works

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Image for topic: The diagrams below shows how a central heating systems in a house works

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The image depicts a schematic of a central heating system within a house, illustrating the flow and components involved. Water tanks at the top are filled, supplying cold water into the house and storage tank, with an overflow pipe connected. The storage tank distributes hot water to taps, while the boiler (using gas or oil) situated at the bottom heats the water, and a pump circulates it through hot water radiators via small tubes and pipes.

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 how a domestic heating system works. It shows how the tank, boiler, and pipes ensure a constant flow of hot water to both radiators and the taps.

Overall, this system consists of radiators, which are used for heating the house, and taps, which provide the house with hot water.

In the first stage, cold water comes into the house. This water goes to the storage tank, which also has an overflow pipe for extra water. Then, there are two follows for this water. The first direction provides cold water to taps, while in the second one, water goes to the boiler. The boiler works on gas or oil. A pump then circulates the hot water in two separate cycles.

In the first cycle, it flows to the hot water radiators. Simultaneously, in the second cycle, hot water from the boiler goes through small tubes inside the hot water tank. There, it heats the cold water without mixing with it.

Word Count: 162

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Overall Band Score

7.5

(+/- 0.5)

Vocabulary Complexity:
B1 - Intermediate
Using more sophisticated words could be beneficial.

Grammar Mistakes: N/A

Vocabulary Repetition:

water: 12

boiler: 4

radiators: 3

which: 3

house: 3

first: 3

Try using synonyms for the above words

Task Response

The report adequately describes the central heating system and its operation. The description is generally clear and covers the main components and processes. However, there could be more detail in certain areas to fully address the task requirements. To improve, focus on providing a more comprehensive description of each stage of the process, including specific details about the components and their functions. Also, ensure that the organization of the report is logical and easy to follow, with clear transitions between different parts of the system.

Coherence & Cohesion

The report is generally well-organized and easy to follow. The description of the process is logical. However, the introduction and overall statement could be more integrated to provide a stronger sense of cohesion. Consider using more varied cohesive devices to enhance the flow between sentences and paragraphs.

Lexical Resource

The vocabulary used is appropriate and generally accurate. However, there's room to incorporate a wider range of vocabulary related to heating systems and their components to demonstrate more flexibility. For instance, instead of repeatedly using 'goes to,' try more specific verbs like 'feeds into,' 'supplies,' or 'is directed to.' Boost vocabulary complexity to elevate the overall score.

Grammatical Range & Accuracy

The report demonstrates a good command of grammar with very few errors. The sentence structures are varied and generally well-controlled. To further enhance the grammatical range, consider incorporating more complex sentence structures where appropriate, such as using subordinate clauses to combine related ideas more effectively.

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