Environmental Engineering in CE Threshold limit value (TLV) of CO in air is __________ ppm. 2000 5000 50 5 2000 5000 50 5 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Solid content in most of the domestic sewage is about __________ percent. 5 10 0.001 0.1 5 10 0.001 0.1 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Septic tanks are used for the __________ of the deposited solids. Separation None of these Anaerobic decomposition Aerobic decomposition Separation None of these Anaerobic decomposition Aerobic decomposition 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. 140 120 75 95 140 120 75 95 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Presence of iron and manganese in water causes Reduction in its dissolved oxygen content Discoloration of bathroom fixtures Temporary hardness None of these Reduction in its dissolved oxygen content Discoloration of bathroom fixtures Temporary hardness None of these ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Presence of __________ hardness is responsible for the temporary hardness in water. Sulphate Carbonate Choride Calcium Sulphate Carbonate Choride Calcium ANSWER DOWNLOAD EXAMIANS APP
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