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Why is using only an audio warning insufficient in a noisy factory?

Answer and explanation

Correct answer: Noise may mask the signal so a visual light signal is also needed

The governing concept is recognizing environmental barriers and using complementary communication modes. Loud machinery or surrounding noise can mask, distort, or prevent workers from hearing an audio warning. Therefore, option B is correct: a visible light or other visual signal provides an additional route for urgent information. Audio warnings do have meaning, and the claims about reading ability or visual speed are unsupported generalizations.

Related tags

Noise BarrierFactory WarningAudio Visual SignalSafety CommunicationVisual CommunicationCommunication Skills IArtificial IntelligenceClass 9 Mcq

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