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 With greater number of blades Of increased diameter Both A & B Neither A nor B With greater number of blades Of increased diameter Both A & B Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which of the following is an adsorbant for removal of nitrogen oxides from gas/air? Active carbon Silica gel Bog iron (iron oxide) Pulverised limestone Active carbon Silica gel Bog iron (iron oxide) Pulverised limestone ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Growth of __________ is promoted by the presence of manganese in water. Algae Mosquitoes Files Micro-organisms Algae Mosquitoes Files Micro-organisms ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Industrial workers working in leather tanning & manufacturing units are prone to suffer from Blurred vision Skin diseases (e.g. dermatities) Silicosis Respirtory ailments (e.g. bronchitis) Blurred vision Skin diseases (e.g. dermatities) Silicosis Respirtory ailments (e.g. bronchitis) ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Sulphur dioxide present in the industrial chimney exhaust gases causes All of these Reduction in plant's productivity owing to acid rain Respiratory & lung disease Corrosion of building materials All of these Reduction in plant's productivity owing to acid rain Respiratory & lung disease Corrosion of building materials ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Septic tanks are used for the __________ of the deposited solids. Aerobic decomposition Separation Anaerobic decomposition None of these Aerobic decomposition Separation Anaerobic decomposition None of these ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS