The maximum sound is generated _________.
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A.
from industrial smoke
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B.
from house chimneys
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C.
by the take off of a jet plane
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D.
from vehicular emissions
Correct Answer:
C. by the take off of a jet plane
Explanation:
Sound intensity is measured in decibels (dB), and the magnitude of sound produced depends on the source's energy. Among the given options, the takeoff of a jet plane generates the highest sound levels, typically reaching between 120 and 140 decibels, which is near or at the threshold of pain for human hearing. In contrast, emissions from industrial smoke, house chimneys, and vehicles produce significantly lower noise levels. Therefore, a jet engine during takeoff is the most powerful source of sound listed.
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