A rough guide that noise may be a problem is that you cannot hear someone speaking normally
Answer and explanation
Correct answer: B. from about two metres away
- Step 1: If you must shout to be heard at two metres, the noise may exceed 85 dB(A). Step 2. A noise assessment should then be made. Answer: from about two metres away. Why not the others: Half a metre is too close and the other distances are too far to be a useful guide.
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