Environmental Engineering in CE When the concentration of SO₂ in air is greater than __________ ppm, it gives a pungent smell. 0.01 0.1 4 1 0.01 0.1 4 1 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Noise level heard at a distance of about 100 metres from a jet engine with after burner is about __________ decibels. 140 120 200 170 140 120 200 170 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Septic tanks are used for the __________ of the deposited solids. Separation None of these Anaerobic decomposition Aerobic decomposition Separation None of these Anaerobic decomposition Aerobic decomposition ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Threshold limit value (TLV) i.e., the maximum permissible safe limit of phosgene gas which Hitler used to use to kill his enemies in 'gas chamber' is about __________ ppm. 10-100 100-1000 100-200 10-100 100-1000 100-200 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Ambient noise level can be reduced by __________ decibels by planting trees (like coconut, neem etc.) near public utility buildings (like hospitals & schools). 43832 15-20 43961 25-30 43832 15-20 43961 25-30 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Carbon monoxide is a pollutant, which causes Asphyxiation (suffocation) leading to death Respiratory disease (e.g. asthma) Retardation in crop growth Damage to building materials like marble Asphyxiation (suffocation) leading to death Respiratory disease (e.g. asthma) Retardation in crop growth Damage to building materials like marble ANSWER DOWNLOAD EXAMIANS APP
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