Environmental Engineering in CE The major reason of hydrodynamic noise (i.e., noise resulting from liquid flow) is Pipe vibrations Cavitation Fluctuation in liquid flow Boundary layer separation Pipe vibrations Cavitation Fluctuation in liquid flow Boundary layer separation ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Removal of __________ is accomplished by aeration of water. Dissolved gases Dissolved solids None of these Suspended solids Dissolved gases Dissolved solids None of these Suspended solids ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Most of the atmospheric air pollutants are present in large quantity in Stratosphere Thermosphere Mesosphere Trophosphere Stratosphere Thermosphere Mesosphere Trophosphere ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE As per the world health organisation (WHO) specification, the maximum permissible concentration (i.e., TLV) of particulate matter in air is __________ μg/m³.(μg-microgram) 10 90 750 800 10 90 750 800 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which of the following pollutants, if present in atmosphere is detectable by its odour? CO₂ NO₂ SO₂ CO CO₂ NO₂ SO₂ CO ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which of the following is the common pollutant emitted from metallurgical smelters, thermal power plant and cement plants? NOx Hg SO₂ F NOx Hg SO₂ F ANSWER DOWNLOAD EXAMIANS APP
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