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Health and Safety Time remaining: $34$ minutes $58$ seconds Mr Zohir Touati, EG$5$

Question $18)$ The best method for reducing the effects of excessive noise is to

a$)$ apply sound insulation to the noise source

b$)$ reduce the noise level by $10dB$

c$)$ ensure the noise has been assessed correctly and the required limits applied correctly

d$)$ provide hearing protection

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