Environmental Engineering in CE The most commonly used chemical coagulant in water treatment is Alum Ferrous sulphate Lime Hydrazine Alum Ferrous sulphate Lime Hydrazine ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Noise level audible to audience sitting in the 5th row from the stage during a large orchestra show corresponds to about __________ decibels. 135 185 105 160 135 185 105 160 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Maximum permissible limit of industrial noise as recommended by World Health Organisation (WHO) is __________ decibels. 35 95 105 75 35 95 105 75 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE In water treatment plant, zeolite process is used to remove the __________ of water. Acidity Hardness Iron & zinc Alkalinity Acidity Hardness Iron & zinc Alkalinity ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Presence of dissolved impurities of __________ is responsible for the red brownish color of water. Bi-carbonates Iron & manganese Carbonates Arsenic Bi-carbonates Iron & manganese Carbonates Arsenic ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Carbon monoxide is a pollutant, which causes Damage to building materials like marble Respiratory disease (e.g. asthma) Asphyxiation (suffocation) leading to death Retardation in crop growth Damage to building materials like marble Respiratory disease (e.g. asthma) Asphyxiation (suffocation) leading to death Retardation in crop growth ANSWER DOWNLOAD EXAMIANS APP
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