Environmental Engineering in CE Corrosion in boilers can be prevented by All of these Enhancing pH of feed water by adding alkali Deaeration of feed water Feeding sodium sulphite or hydrazine phosphate to the boilers, which combines with oxygen and prevents corrosion All of these Enhancing pH of feed water by adding alkali Deaeration of feed water Feeding sodium sulphite or hydrazine phosphate to the boilers, which combines with oxygen and prevents corrosion ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Main pollutants released from petroleum refineries is SO₃, NO₂ & CO₂ CO, SO₂ & H₂S CO₂, NO & SO₃ CO₂, H₂S & NO₂ SO₃, NO₂ & CO₂ CO, SO₂ & H₂S CO₂, NO & SO₃ CO₂, H₂S & NO₂ ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE TLV of ammonia, nitrogen dioxide and phenol vapor in air is __________ ppm. 5 100 1000 2000 5 100 1000 2000 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Inhalation of silica dust by human being causes Both B & C Tuberculosis Shortness of breath Asphyxiation Both B & C Tuberculosis Shortness of breath Asphyxiation ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE During which of the following operating conditions of an automobile, carbon monoxide content in the exhaust gas is maximum? Cruising Deaccelaration Idle running Acceleration Cruising Deaccelaration Idle running Acceleration ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Acute danger to human life (i.e. death) exists, if the concentration of CO₂ in atmospheric air exceeds __________ percent (by volume). 3 7 1 20 3 7 1 20 ANSWER DOWNLOAD EXAMIANS APP
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