Top 350+ Solved Public Health Engineering MCQ Questions Answer
Q. For house drainage and lateral connections, we shall use
a. stone ware sewers
b. cast iron sewers
c. concrete sewers
d. masonry sewers
Q. The cross-section recommended for separate system of sewerage is
a. circular
b. egg-shaped
c. rectangular
d. none of these
Q. In the design of a sedimentation tank, the essential factor to be considered is
a. period of detention
b. sludge capacity
c. velocity of flow
d. all of these
Q. After cleaning the slow sand filter, the filtered water should not be used for a period of
a. upto 6 hours
b. 6 hours to 12 hours
c. 12 hours to 24 hours
d. 24 hours to 48 hours
Q. By lime soda process, hardness can be reduced to less than
a. 50 ppm
b. 75 ppm
c. 100 ppm
d. 150 ppm
Q. Disposal by dilution will be suitable where
a. there are strong forward currents
b. there is no back currents
c. the sewage arriving at the out fall point is fresh and non-septic
d. all of the above
Q. Cleaning period for a slow sand filter is taken as
a. 1 hour to 3 hours
b. 1 day to 3 days
c. 1 week to 3 weeks
d. 1 month to 3 months
Q. The open wells or dug wells wells
a. act as a small storage reservoir
b. are suitable for a small discharge
c. are cheap in construction
d. all of these
Q. In Zeolite process
a. no sludge is formed
b. water of varying quality can be treated
c. ferrous and manganese from water are removed
d. all of tha above