Environmental Engineering in CE The major reason of hydrodynamic noise (i.e., noise resulting from liquid flow) is Pipe vibrations Fluctuation in liquid flow Cavitation Boundary layer separation Pipe vibrations Fluctuation in liquid flow Cavitation Boundary layer separation ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE In troposphere (the weather domain), the temperature 't' at height 'h' above the spa level in metres is given by (where, temperature at sea level is 15°C and t is in °C.) t = 0.0035h -15 t = 15 - 0.0065h t = 15 - 0.0035h t = 15 + 0.0065h t = 0.0035h -15 t = 15 - 0.0065h t = 15 - 0.0035h t = 15 + 0.0065h ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Noise level heard inside a bus in busy city traffic or inside a sub-way train corresponds to about __________ decibels. 95 75 140 120 95 75 140 120 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Lagooning process is mainly a means of the None of these Sludge disposal Biological treatment of wastes Reduction of excessive flow in sewers None of these Sludge disposal Biological treatment of wastes Reduction of excessive flow in sewers ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Main pollutants released from petroleum refineries is CO, SO₂ & H₂S SO₃, NO₂ & CO₂ CO₂, H₂S & NO₂ CO₂, NO & SO₃ CO, SO₂ & H₂S SO₃, NO₂ & CO₂ CO₂, H₂S & NO₂ CO₂, NO & SO₃ ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The amount of chemical coagulant added for treatment of polluted water __________ with increase in temperature of the polluted water to be treated. Increases Remains constant Decreases May increase or decrease ; depends on the chemical characteristics of polluted water Increases Remains constant Decreases May increase or decrease ; depends on the chemical characteristics of polluted water ANSWER DOWNLOAD EXAMIANS APP
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