Environmental Engineering in CE TLV of ammonia, nitrogen dioxide and phenol vapor in air is __________ ppm. 2000 100 1000 5 2000 100 1000 5 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE High noise level in a chemical plant can be controlled by the Suppression of noise at the source itself Protection of operating personnel All of these Path control of noise Suppression of noise at the source itself Protection of operating personnel All of these Path control of noise ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Main pollutants released from petroleum refineries is CO₂, NO & SO₃ SO₃, NO₂ & CO₂ CO, SO₂ & H₂S CO₂, H₂S & NO₂ CO₂, NO & SO₃ SO₃, NO₂ & CO₂ CO, SO₂ & H₂S CO₂, H₂S & NO₂ ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Noise produced by cooling fans (employed in air cooled heat exchangers or cooling tower) is mainly caused due to the turbulence created by blade passage through air. It can be reduced by use of a slower fan Both A & B Neither A nor B Of increased diameter With greater number of blades Both A & B Neither A nor B Of increased diameter With greater number of blades 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 Au-198 I-131 Ra-226 Sr-90 Au-198 I-131 Ra-226 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Dust collection efficiency of a cyclone separator depends upon its Inlet gas velocity Diameter All of these Overall height Inlet gas velocity Diameter All of these Overall height ANSWER DOWNLOAD EXAMIANS APP
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