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NEBOSH General Certificate NG2- Element 5: Physical and Psychological Health, Top Questions and answers, 100% Accurate. $7.99   Add to cart
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NEBOSH General Certificate NG2- Element 5: Physical and Psychological Health, Top Questions and answers, 100% Accurate.
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NEBOSH General Certificate NG2- Element 5: Physical and Psychological Health, Top Questions and answers, 100% Accurate. What does a daily personal noise exposure of 85bB(A) mean? This refers to a daily personal exposure to noise at a level of 85 dB(A) over the course of a working day (eight...

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  • June 13, 2023
  • 4
  • 2022/2023
  • Exam (elaborations)
  • Questions & answers

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  • nebosh general certificate ng2 element 5 physica

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  • NEBOSH
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NEBOSH General Certificate NG2-
Element 5: Physical and Psychological
Health, Top Questions and answers,
100% Accurate.


What does a daily personal noise exposure of 85bB(A) mean?

This refers to a daily personal exposure to noise at a level of 85 dB(A) over the course of a working day
(eight hours), or an equivalent exposure over a longer or shorter period. This represents the upper
exposure action value at and above which action must be taken to reduce employee exposure. ‘dB’
refers to decibel – the sound pressure level. ‘A’ refers to the A-weighting matrix, which takes into
account the sensitivity of the human ear to noise at different frequencies.




What are the limitations of ear defenders and ear plugs?

One limitation of ear defenders is that the seal between the ear and the protective device may be less
than perfect due to long hair, spectacle frames and jewellery, incorrect fitting or the wearing of helmets
or face shields. Other limitations are that they may become uncomfortable during use and consequently
may be removed. They also need a dedicated storage facility.

Limitations of ear plugs are that they offer less noise reduction at high-noise levels, they are more
difficult to see and therefore enforce, and they can be a source of contamination into the ear if hygiene
practices are poor.




Identify the symptoms of hand-arm vibration syndrome.

Symptoms of hand-arm vibration syndrome include:

Tingling and numbness in the fingers and hands.

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