Environmental Engineering in CE
As compared to rapid sand filters, slow sand filters give
(i) Slower filtration rate
(ii) Higher filtration rate
(iii) Lesser efficiency in removal of bacteria
(iv) Higher efficiency in removal of bacteria
The correct answer is

(ii) and (iii)
(ii) and (iv)
(i) and (ii)
(i) and (iv)

ANSWER DOWNLOAD EXAMIANS APP

Environmental Engineering in CE
Which of the following is not a practical method of low level radioactive waste disposal?

Dilution with inert material
Filling in steel crates and shooting it off out of earth
Disposing off in rivers & oceans
Discharging to atmosphere through tall stacks after dilution

ANSWER DOWNLOAD EXAMIANS APP