Environmental Engineering in CE Maximum permissible turbidity in potable water is __________ ppm. 250 1 1000 10 250 1 1000 10 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Maximum allowable noise exposure limits for a man working for 8 hours a day in a noisy chemical plant is about __________ decibels. 90 60 120 20 90 60 120 20 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Presence of dissolved impurities of __________ is responsible for the red brownish color of water. Iron & manganese Arsenic Bi-carbonates Carbonates Iron & manganese Arsenic Bi-carbonates Carbonates ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Reingleman chart No. 2 corresponds to __________ percent black smoke. 20 10 80 40 20 10 80 40 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which of the following radioactive wastes emits all α, β & γ rays and hence is the most hazardous of all radioactive emitters? Ra-226 I-131 Au-198 Sr-90 Ra-226 I-131 Au-198 Sr-90 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which of the following is the most efficient for removal of very finely divided suspended solids and colloidal matter from the polluted water stream? Mechanical flocculation Chemical coagulation Sedimentation tank Circular clarifier Mechanical flocculation Chemical coagulation Sedimentation tank Circular clarifier ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS