Noise and Vibration
Preventing hearing loss, hand-arm vibration syndrome and related harm through selection, exposure control and early reporting.
How to prepare for the CITB Operatives test
Connect hazard recognition with safe action: stop, protect, follow the site system and escalate to the right competent person.
Core concepts
Concept 1
Noise-induced hearing loss and vibration damage can be permanent and may develop gradually before the worker recognises the severity.
Exam cue: Choose equipment and methods that produce less exposure at source.
Concept 2
Lower-noise or lower-vibration equipment, maintenance, remote methods, exposure-time control and work planning come before PPE alone.
Exam cue: Use actual task and trigger-time information rather than guessing from the length of the shift.
Concept 3
Tingling, numbness, blanching, reduced grip, tinnitus or hearing difficulty should be reported early through occupational-health arrangements.
Exam cue: Protect others from the noise zone and wear correctly selected hearing protection where required.
Risk pitfalls and guardrails
Removing hearing protection briefly in a high-noise area to communicate.
Guardrail: Do not solve a missing guard, isolation, barrier, competent plan or engineering control only with a warning or PPE.
Assuming gloves prevent hand-arm vibration exposure.
Guardrail: Do not solve a missing guard, isolation, barrier, competent plan or engineering control only with a warning or PPE.
Ignoring intermittent symptoms because they disappear after work.
Guardrail: Do not solve a missing guard, isolation, barrier, competent plan or engineering control only with a warning or PPE.
Memory anchors
Quiet at Source
Select quieter methods and equipment before depending on ear protection.
Trigger Time Counts
Vibration exposure follows time actually operating the tool, not simply time on site.
Maintain to Reduce
Worn tools, blunt consumables and poor balance can increase noise and vibration.
Symptoms Speak Early
Report tingling, whitening, numbness, tinnitus or hearing change promptly.
Protection Stays On
Do not lift hearing protection while still inside the designated noise area.
Gloves Are Not a Cure
Warmth and grip may help comfort, but gloves do not replace vibration control.
Checkpoint rule
Do the check-up only after you can summarize each concept in one sentence and identify one dangerous pitfall from memory.
Knowledge Check (after reading)
Short check-up to confirm understanding of this module.
Check-up Questions
Next step personalized recommendations
Continue learning
Move forward only after this module is stable.
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