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HS&E MAP practice question: Noise and vibration (2 of 4)

B. Occupational health, wellbeing and welfare A free question from our original HS&E MAP practice exam. Try it, then open the answer to see why each option is right or wrong.

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A worker's daily hand-arm vibration exposure is worked out as 3.5 m/s² A(8).

What does this mean?

Choose one answer.

  1. A. It is above the action value, so exposure must be reduced
  2. B. It is above the limit, so the worker must never use tools again
  3. C. It is below every value, so nothing is needed
  4. D. It only matters if the worker already has symptoms
Show the answer and explanation

Answer: A

  • A. Right: Right. HSE gives the exposure action value as 2.5 m/s² A(8). Above it, employers should bring in technical and organisational measures to reduce exposure.
  • B. Wrong: Wrong. The limit value is 5.0 m/s² A(8). 3.5 is above the action value but below the limit.
  • C. Wrong: Wrong. 3.5 is above the action value of 2.5.
  • D. Wrong: Wrong. Action is needed to reduce exposure before harm happens.

Explanation

HAV: the exposure action value is 2.5 m/s² A(8), and the limit value of 5.0 m/s² A(8) must not be exceeded.

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