Question

Find out the levels of sound in decibels (dB) produced by the following:

 Commercial Aeroplane

 Fighter Jet

 Train

 Piano

 Cracker
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Answer 1

Answer:

Explanation:

Aircraft engines are the major source of noise and can exceed 140 decibels (dB) during takeoff.

fighter jet

The sounds associated with jet planes measure between 120 and 140 decibels. Any sound above 85 decibels has the potential to cause hearing damage, especially with frequent or prolonged exposure.

train

Based on our measurements at 140 feet from the track for a train travelling at around 15-25 mph, we found that the locomotive engine reaches a maximum, A-weighted, sound level of 78 dB. But the longest and most significant noise is the rolling noise from the railcars. The time-averaged level of this noise was 69 dB.

cracker

Among single-unit firecrackers, the noisiest was Thunder Bomb, a rassi bomb manufactured by Standard Fireworks, Sivakasi; the cracker generated an average noise level of 126.6 dB and a peak noise level of 134.5 dB.