Mining Engineering > GATE 2018 > Mine Safety
A person standing 50 m away from an HEMM experiences 90 dB sound pressure level. If the person moves to a new location that is 70 m away from the HEMM, the sound pressure level experienced by the person, in dB, becomes ________.
Correct : 86.75
Similar Questions
Exposure to loud impulsive noise may lead to
In a self-contained closed-circuit breathing apparatus,
In an underground coal mine, two fatalities and three serious bodily injuries occurred during the year 2022. The average daily employment is 1100 and annual wor...
Total Unique Visitors
Loading......