Environmental Engineering in CE Noise level in a quiet private business office is about __________ decibels. 25 50 85 70 25 50 85 70 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The length of rectangular sedimentation tank should not be more than(Where ‘B’ is the width of the tank) 2B 4B B 8B 2B 4B B 8B 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 Of increased diameter Neither A nor B Both A & B With greater number of blades Of increased diameter Neither A nor B Both A & B With greater number of blades ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Waste/polluted water discharged from electroplating, blast furnace and coal mining industries contain mainly __________ substances. None of these Organic Inorganic Radioactive None of these Organic Inorganic Radioactive ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Presence of bacteria in potable (drinking) water causes Turbidity Disease Bad taste & colour Bad odour Turbidity Disease Bad taste & colour Bad odour ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Main pollutants released from iron & steel industry is CO₂, H₂S & NO₂ H₂S, NO & SO₃ SO₃, NO₂ & CO₂ CO, CO₂ & SO₂ CO₂, H₂S & NO₂ H₂S, NO & SO₃ SO₃, NO₂ & CO₂ CO, CO₂ & SO₂ ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS