Band 5.5 IELTS Writing Task 1 Model Answer

Overall Band Score: 5.5 · IELTS Momentum Workout · 2026-11-12

IELTS Writing Task 1 question

The diagram below shows how a mechanical arm works, and how the joints that make up the arm function in the same way as those in a human arm. Summarise the information by selecting and reporting the main features, and make comparisons where relevant.

Student answer (Band 5.5)

The figures below dipicts the mechanism of how arm works, and how arms function replicates the human arm function.This process is carried out motors contolled through computers, further, the replicate of arm is made out through different joints, pivot, elbows, motors, shoulder and a base to hold it. Also there is an alternative for this process named aternative end-effector.

At the beginning, a computer ensures the controlling system of the body, making it the vital one in whole process.Thereafter 3 motors are used to make arms,used in 3 subparts of the arms,one near the base, one in middle and at the top.This motors helps in rotation of the parts making a rotatry motion likewise human arms.

The motor used in base Helps in raising and lowering of the mechanical arms called as shoulders while pivot near it helps in rotatry motion of the arms. In the middle of the body contains elbow which allows movement and provides flexibility to the arms.Inaddtion between the top and middle part, a wrist controls gripper( or alternative end effector ) to flex/rotate.However, the top of arms provides the built in sensors to regulate force and hold things likewise human.

AI examiner evaluation

Task Achievement / Task Response: Band 5.5

You identify the main components—computer, motors, joints, base, wrist and gripper—and describe several functions, including the shoulder raising or lowering the arm and the pivot enabling rotation. This gives the response relevant coverage of the diagram. However, the overview is unclear and does not explain the system’s overall arrangement or how the computer-controlled motors operate the arm. Some details are inaccurate or confusing: the motors are not described as being “used to make arms,” and the gripper’s sensors regulate force rather than simply hold things. The alternative end-effectors are mentioned but their uses (spraying, drilling and welding) are omitted. A clearer overview and more precise reporting of the labelled functions would make the account more complete.

Coherence and Cohesion: Band 5.5

The response has a basic paragraph structure: an introduction, a description of the computer and motors, and a final paragraph about the joints and gripper. It also uses some sequencing and linking expressions, such as “At the beginning,” “Thereafter” and “However.” Nevertheless, the progression is not consistently clear. The introduction repeats the idea of human-arm function, while the second paragraph’s description of three motors and their positions is difficult to follow. References such as “it,” “this process” and “the top of arms” do not always make clear which component is meant. Some transitions, including “However,” do not express a clear contrast. Grouping the components in the order they appear and using precise references would improve the flow.

Lexical Resource: Band 5.5

You use relevant technical vocabulary, including “pivot,” “elbow,” “wrist,” “gripper,” “flexibility” and “sensors,” which helps convey the diagram’s subject. There are also attempts at more specific language, such as “rotatry motion” and “alternative end effector.” However, spelling errors and imprecise or unnatural combinations are noticeable, for example “dipicts,” “contolled,” “replicate of arm” and “used to make arms.” Repetition of “arms” and “process” also limits the range and precision of the description. Choose standard technical terms and collocations, and check spelling carefully; for instance, describe motors as operating or controlling the joints rather than as making arms.

Grammatical Range and Accuracy: Band 5.0

You attempt both simple and longer sentence forms, and some relationships between components are expressed through clauses such as “which allows movement.” However, control is inconsistent, and errors in sentence boundaries, agreement, articles and verb forms sometimes make the meaning difficult to follow. For example, “how arm works” needs an article, while “This motors helps” has a number-agreement error. The opening sentence runs together two ideas without adequate punctuation, and “the top of arms provides” has an unclear subject and agreement. Several sentences also lack clear grammatical structure, particularly “In the middle of the body contains elbow.” Use shorter, complete sentences first, then add subordinate clauses once the subject and verb are clear.

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