Environmental Engineering in CE Maximum permissible turbidity in potable water is __________ ppm. 1 250 10 1000 1 250 10 1000 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. 140 200 120 170 140 200 120 170 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE In sewage treatment, its sedimentation is speeded up by commonly adding Lime Copper sulphate Hydrochloric acid Sodium sulphate Lime Copper sulphate Hydrochloric acid Sodium sulphate ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Direct reaction of unsaturated hydrocarbons with either NO or NO₂ produces an eye irritating pollutant compound known as Photochemical smog Peroxy acetyl nitrate (PAN) or methyl nitrile Poly acrylonitrile Benzopyrene Photochemical smog Peroxy acetyl nitrate (PAN) or methyl nitrile Poly acrylonitrile Benzopyrene ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Maximum allowable concentration of CO₂ in air for safe working is __________ ppm (parts per million). 1000 50 2000 5000 1000 50 2000 5000 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE A man exposed to excessive noise level in the working environment may suffer from Nervousness & fatigue Rupture of ear drum Hearing loss All of these Nervousness & fatigue Rupture of ear drum Hearing loss All of these ANSWER DOWNLOAD EXAMIANS APP
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