Welcome
Recognising hazards before harm occurs
Welcome to Lesson 04 of Component 12. Today we move into risk assessment by looking first at hazards commonly found in engineering and manufacturing workplaces.
You will also explore the legal idea of “so far as is reasonably practicable” (SFAIRP) and consider how sensible precautions can prevent industrial injuries.
If every engineering activity contains some risk, how do we decide what level of control is reasonably enough?
Learning Outcomes
What should you know by the end?
Prior Knowledge Check
Quick check before the main learning
Why This Matters
Engineering decisions have real consequences
Manufacturing and engineering workplaces can involve moving machinery, stored energy, electricity, hazardous substances, hot surfaces, vehicles, lifting operations and challenging environments.
A hazard that is poorly controlled can quickly become an accident, causing injury, equipment damage, lost production or harm to the public.
Imagine a workshop where a machine guard is missing but production is already behind schedule. Should the machine still be used? Explain your reasoning.
Main Learning Content
SFAIRP and common engineering hazards
So Far As Is Reasonably Practicable (SFAIRP)
HASAWA places duties on employers to protect employees so far as is reasonably practicable. This means risk reduction requires a balance between the level of risk and the time, trouble and cost needed to control it.
The greater the potential harm, the stronger the justification needed for not taking additional precautions.
Hazards in Manufacturing and Engineering
Six Common Causes of Industrial Injuries
- Exposure to or contact with a harmful or hot substance or object.
- Fires and explosions.
- Falls from height.
- Workplace transport.
- Slips and trips.
- Being struck by an object.
Lesson Presentation
Teacher-led learning • PowerPoint 4
Hazards in Manufacturing and Engineering
Use PowerPoint 4 during the teacher-led part of the lesson. It introduces SFAIRP, common engineering hazards and examples of industrial injuries.
▶ Open Lesson PresentationYour Lesson 04 PowerPoint or PDF will be connected here when it is uploaded.
Engineering Case Study
Learning from real workplace incidents
Chemical Spill Scenario
During maintenance on heat-treatment equipment, a hazardous chemical is spilled. The engineer is not wearing suitable PPE and is unsure of the correct emergency procedure. An incorrect response makes the incident worse and fumes spread into a neighbouring workplace.
Discuss
- What hazards should have been identified before the task began?
- Which controls should have been available?
- What training should the engineer have received?
- How could the consequences affect people beyond the immediate work area?
Do not only identify a control. Explain how that control reduces the likelihood or severity of harm.
Class Activity
Industrial injury analysis • exam-style practice
Grinding Wheel Failure
A grinding wheel used during crankshaft refurbishment fails catastrophically. The wheel is operating above its safe speed, no suitable guard is fitted, and the operator must stand close to the rotating wheel controls.
Write an exam-style response to the question below.
Check examiner-style mark guidance
Indicative marking points — up to 6 marks:
- Identifies excessive wheel speed / lack of speed control.
- Identifies the missing or inadequate guard.
- Recognises the operator is positioned too close to the hazard.
- States that safe operating speed should be known and controlled.
- States that suitable guarding should be fitted before use.
- Explains that the task should not proceed until hazards are controlled.
For a stronger answer: link each control directly to the hazard and explain how it reduces the chance or consequence of injury.
Lesson Summary
Key ideas to remember
SFAIRP
Employers must reduce risk so far as is reasonably practicable, balancing risk against the sacrifice needed for further control.
Hazards
Engineering hazards include machinery, stored energy, electricity, substances and challenging working environments.
Industrial Injuries
Common causes include harmful substances, fires, falls, workplace transport, slips/trips and being struck by objects.
Prevention
Hazards must be identified before work and controlled using suitable engineering and organisational measures.
Exit Ticket
Show what you can now explain
Complete these before you leave
Check answer guidance
Question 1: SFAIRP means reducing risk to a level where further precautions would be grossly disproportionate to the risk being controlled.
Question 2: Any three from harmful/hot substances, fires/explosions, falls from height, workplace transport, slips/trips, or being struck by objects.
Question 3: Strong answers explain that early hazard identification allows controls to be selected before exposure occurs, reducing the likelihood and/or severity of injury and helping the employer meet legal duties.
Move on to Worksheet 5 for the main applied activity on causes of industrial injuries.
Worksheet 5
Causes of Industrial Injuries • Component 12 Practice
Worksheet 5: Causes of Industrial Injuries
Complete Worksheet 5 to identify the six common causes of industrial injuries and analyse the grinding-wheel scenario.
Worksheet Resource
Make sure you can identify common engineering hazards, describe common industrial injuries and explain the meaning of SFAIRP.
AI Lesson Companion
Future VITHAAA learning support
Ask VITHAAA AI
Students will eventually be able to ask questions about SFAIRP, engineering hazards, industrial injuries and risk assessment directly from this area.