Environmental Engineering in CE Which of the following pollutants, if present in atmosphere is detectable by its odour? NO₂ CO SO₂ CO₂ NO₂ CO SO₂ CO₂ ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Noise emitted by a ventilation fan at a distance of 3 metres is about __________ decibels. 145 125 85 105 145 125 85 105 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Presence of high concentration of ozone and smog in atmospheric air causes the Cracking of rubber products Fading of dye on textiles Embrittlement & decrease of folding resistance of paper Damage of electrical insulator on high tension power line Cracking of rubber products Fading of dye on textiles Embrittlement & decrease of folding resistance of paper Damage of electrical insulator on high tension power line ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which of the following radioactive wastes emits all α, β & γ rays and hence is the most hazardous of all radioactive emitters? Sr-90 Ra-226 Au-198 I-131 Sr-90 Ra-226 Au-198 I-131 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE High noise levels produced during operation of fans and compressors can be reduced by using Lagging of noisy duct Accoustical absorbent None of these Mufflers (silencers) Lagging of noisy duct Accoustical absorbent None of these Mufflers (silencers) ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Threshold Limit Value (TLV) is the maximum allowable concentration (i.e. safe limit) of pollutants in air. Safe limit for SO₂ in air is __________ ppm. 1000 2000 5 500 1000 2000 5 500 ANSWER DOWNLOAD EXAMIANS APP
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