Practice question · Put in order
Arrange the controls for airborne dust from the most to the least reliable.
- Capture the dust at the point it is generated
- Rely on cleaning up afterwards
- Ventilate the general workspace
- Wear fitted respiratory protection
- Eliminate the dusty process or substitute a wet one
Hints
- The most reliable control removes the hazard rather than the exposure.
- Personal protection depends on fit and discipline, so it ranks low.
Show the answer
- Eliminate the dusty process or substitute a wet one
- Capture the dust at the point it is generated
- Ventilate the general workspace
- Wear fitted respiratory protection
- Rely on cleaning up afterwards
Why
The ordering is the standard hierarchy of control and its logic is that reliability falls as the control depends more on individual behaviour. A wet process protects everyone in the room whether or not they are thinking about it; a respirator protects one person, if it fits, if it is worn, and if it is maintained.
Practise Health, Safety and Sustainability in the Workshop
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