Ergonomics: definition, need and benefits

Unnecessary twisting can increase strain on the body. Exam tip: connect correct body position with ergonomics.

Ergonomics makes work suitable to a person's comfort and ability. Exam tip: understand it as a human-friendly work arrangement.

Correct sitting reduces unnecessary pressure on the body. Exam tip: link sitting posture with health.

Ergonomics makes work safe, convenient, and less tiring. Exam tip: remember both safety and comfort.

The direct answer is D, Body pain. Ergonomics means arranging tools, furniture, posture, and work methods so that they suit the human body and reduce unnecessary strain. A poor ergonomic arrangement may place the neck, back, shoulders, wrists, or legs in awkward positions. If this continues, muscles and joints may become tired or painful. Option A, more comfort, is generally a benefit of good ergonomics, not poor arrangement. Option B, better safety, is also a benefit of proper design and safe working conditions, not the expected result of a bad setup. Option C, less fatigue, is wrong because poor posture and unsuitable equipment usually increase fatigue. Option D is correct because physical strain can cause or increase body pain. Poor ergonomics may also reduce efficiency, but the clearest listed problem is pain. Memory cue: good ergonomics supports the body; bad ergonomics strains the body.

Tools kept nearby reduce both stretching and time. Exam tip: treat reach as an important part of ergonomics.

A short break from the screen can reduce eye strain. Exam tip: remember eye rest during screen work.

A very low table can increase bending and strain the back. Exam tip: link work height with body strain.

Low light puts more pressure on the eyes. Exam tip: consider adequate lighting an ergonomic need.

The direct answer is A: an ergonomic chair has back support to support the spine. Good back support helps the body keep a more natural posture and may reduce unnecessary strain during sitting. The spine is the row of bones running along the back, so the chair should support the lower and middle back without forcing the body into an awkward position. A is correct because it states the health and posture purpose. B is wrong because support is not provided merely to make a chair look expensive. C is wrong because ergonomic design aims to make sitting safer and more comfortable, not harder. D is wrong because back support has no purpose of hiding a table. Exam cue: chair support means spine and posture.

Breaks and task change reduce muscle strain in repetitive work. Exam tip: remember rest in repetitive work.

The direct answer is C, To prevent tripping and falling. A clean and clear workplace floor leaves a safe path for workers. The step-by-step safety idea is simple: objects, spills, loose wires, and clutter can obstruct movement; a person may catch a foot, slip, or lose balance; clearing and cleaning the floor reduces these hazards. Option A, to hide decoration, has no safety connection and is not the purpose of a clear floor. Option B, to stop work, is the opposite of the aim; a safe floor helps work continue smoothly. Option C is correct because removing obstacles and cleaning spills lowers the chance of trips, slips, and falls. Option D, to increase sound, is unrelated; floor cleanliness does not serve as a noise-making method. A clear passage also improves movement and emergency evacuation. Memory cue: clear floor, clear path, fewer falls.

Heavy items kept too low can strain the waist while lifting. Exam tip: keep heavy items at safe height.

Ergonomic arrangement can reduce fatigue by lowering body strain. Exam tip: remember fatigue reduction as a key benefit.

Correct screen height reduces the need to bend the neck. Exam tip: remember screen and neck position.

Good ventilation makes the work environment comfortable. Exam tip: connect air and temperature with work comfort.

Repeated twisting while working can place unnecessary strain on the muscles of the back, waist, and shoulders. Avoiding it reduces body strain and lowers the risk of fatigue and injury. It does not necessarily make work faster in every situation. Exam tip: In ergonomics, focus on proper working posture and minimising unnecessary bending or twisting.

Direct answer: A, keep frequently used items nearby. Ergonomics means designing a workplace or arrangement to suit the human body, abilities and safe movement. In a kitchen, items used repeatedly should be placed within easy reach. This reduces unnecessary walking, stretching, bending and twisting, so it saves time and lowers fatigue and injury risk. Option A is correct because it improves reach arrangement. Option B is wrong because keeping everything very high causes repeated stretching and may lead to falling objects or strain. Option C is wrong because items on the floor create a tripping hazard and force repeated bending. Option D is wrong because poor lighting makes cutting, reading labels and moving safely more difficult. The step-by-step idea is simple: identify frequent tasks, place their tools at a comfortable height and distance, and leave safe walking space. Memory cue: ergonomics means “easy reach, safe work.”

A comfortable handle improves grip and control. Exam tip: connect tool design with hand comfort.

Less fatigue improves attention and reduces mistakes. Exam tip: link ergonomics with work quality.

Ergonomics designs work according to physical ability and comfort. Exam tip: treat the human body as the main base.

Non-slip shoes can reduce chances of falling. Exam tip: link safe footwear with ergonomic safety.

Clear labels help identify items and their proper places immediately. They save search time, reduce confusion, and make work more organised. Option B is the opposite, because labelling reduces the time needed to locate materials. Exam tip: associate workplace labelling with time-saving and organisation.

Foot support can improve comfort during long standing work. Exam tip: remember the importance of support in long work.

The direct answer is A, Maintaining attention. Noise control means reducing unnecessary, excessive, or disturbing sound at work. The reasoning is: loud or continuous noise distracts the mind, makes instructions harder to hear, increases mental strain, and can lead to mistakes. When noise is controlled, workers can concentrate better, feel more comfortable, and often work more efficiently. Option A is correct because better attention is the main benefit listed. Option B, increasing mistakes, is generally an unwanted result of excessive noise, not noise control. Option C, always increasing stress, is wrong because reducing disturbing noise commonly lowers stress, although every person may respond differently. Option D, stopping communication, is also wrong; suitable noise control makes speech and instructions easier to hear rather than preventing communication. Noise control does not mean silence at all times; it means keeping sound at a safe and manageable level. Memory cue: less distracting noise means better focus and fewer errors.