Environmental Engineering Period of cleaning of slow sand filters is about 10 - 12 days 24 - 48 hours 1 - 2 year 2 - 3 months 10 - 12 days 24 - 48 hours 1 - 2 year 2 - 3 months ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Which of the following causes a decrease in per capita consumption? Better standard of living of the people Good quality of water Hotter climate Use of metering system Better standard of living of the people Good quality of water Hotter climate Use of metering system ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The amount of coagulant needed for coagulation of water increases with (i) Increase in turbidity of water (ii) Decrease in turbidity of water (iii) Increase in temperature of water (iv) Decrease in temperature of water The correct answer is (ii) and (iv) (i) and (ii) (ii) and (iii) (i)and(iv) (ii) and (iv) (i) and (ii) (ii) and (iii) (i)and(iv) ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The chemical most commonly used to increase speed of sedimentation of sewage is Copper sulphate Lime Sodium permanganate Sulphuric acid Copper sulphate Lime Sodium permanganate Sulphuric acid ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The detention period and overflow rate respectively for plain sedimentation as compared to sedimentation with coagulation are generally More and more Less and more More and less Less and less More and more Less and more More and less Less and less ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Laying of sewers is usually done with the help of A plane table Sight rails and boning rods A Theodolite A compass A plane table Sight rails and boning rods A Theodolite A compass ANSWER DOWNLOAD EXAMIANS APP
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