Noise level heard at a distance of about 100 metres from a jet engine with after burner is about __________ decibels.
A. 120
B. 140
C. 170
D. 200
Answer: Option C
This Question Belongs to Chemical Engineering >> Environmental Engineering In CE
Join The Discussion
Comments (1)
Related Questions on Environmental Engineering in CE
Fluorosis is caused due to the presence of excessive amount of __________ in drinking water.
A. Mercury
B. Lead
C. Fluoride
D. Arsenic
Smog is not formed due to the presence of __________ in the atmosphere.
A. SO2
B. NOx
C. CO2
D. Any of these
Dose of chlorine for disinfection of water is about __________ mg/litre of water.
A. 0.01
B. 0.1
C. 0.3
D. 1
Kindly send us the correct explantion.
According to the formula answer will 140