Environmental Engineering in CE Presence of excess flourine in water causes Tooth decay Respiratory disease Dental cavity Fluorosis Tooth decay Respiratory disease Dental cavity Fluorosis ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Noise pollution level in a chemical plant is expressed in Hertz Roentgen Decibel None of these Hertz Roentgen Decibel None of these ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Coal washing waste water containing about 3% suspended solids (comprising of clay, slate, stone etc.) is treated for solid particles removal In clarifiers In vacuum filter In sedimentation tanks equipped with mechanical scrapper By chemical coagulation In clarifiers In vacuum filter In sedimentation tanks equipped with mechanical scrapper By chemical coagulation ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which of the following dust collection equipments is the least efficient (for sub-micronic particles)? Hollow wet scrubber Cyclone separator Bag filter Dust catcher (gravity type) Hollow wet scrubber Cyclone separator Bag filter Dust catcher (gravity type) ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Beyond what concentration of H₂S in air, acute danger to human life exists? 700 ppm 300 ppm 100 ppm 50 ppm 700 ppm 300 ppm 100 ppm 50 ppm ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE When the concentration of SO₂ in air is greater than __________ ppm, it gives a pungent smell. 4 1 0.01 0.1 4 1 0.01 0.1 ANSWER DOWNLOAD EXAMIANS APP
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