Top 350+ Solved Public Health Engineering MCQ Questions Answer
Q. The amount of water collected in a reservoir is divided into three portions and the order of their existance from bottom to the top is
a. useful storage, surcharge storage, dead storage
b. useful storage, dead storage, surcharge storage
c. dead storage, useful storage, surcharge storage
d. none of the above
Q. The permanent hardness of water can be removed by
a. adding alum
b. adding chlorine
c. boiling
d. zeolite process
Q. A sewer which receives sewage from the collection system and conducts it to a point of final disposal is called a
a. common sewer
b. trunk sewer
c. branch sewer
d. outfall sewer
Q. The effective size of sand particles for rapid sand filters varies from
a. 0.30 to 0.35 mm
b. 0.35 to 0.50 mm
c. 0.50 to 0.65 mm
d. 0.65 to 0.75 mm
Q. Which of the following statement is correct?
a. Sewage, if not treated, will create healthy conditions.
b. Secondary treatment of sewage works on hydraulic separation principle.
c. Primary clarifiers are to the sedimentation tanks located just after the girt chambers.
d. Trickling filter is different from percolating filter.
Q. In India, as per Indian standards, water consumption per capita per day for domestic purpose is
a. 85 litres
b. 100 litres
c. 115 litres
d. 135 litres
Q. Bacteria which can survive with or without free oxygen is known as facultative bacteria.
a. Correct
b. Incorrect
Q. The treatment of water with only chlorine is known as
a. plain chlorination
b. post cholorination
c. pre-chlorination
d. de-chlorination
Q. The under drainage system in a rapid sand filters
a. receives and collects the filtered water
b. allows back washing for cleaning the filter
c. both (a) and (b)
d. none of these
Q. The under drainage system in slow sand filters
a. receives and collects the filtered water
b. allows back washing for cleaning the filter
c. both (a) and (b)
d. none of these
Q. The storm sewers are essentially required to
a. avoid creation of unfavourable healthy conditions
b. improve the general appearance of the city
c. dispose off the first washings of early showers as quickly as possible
d. all of the above
Q. In a rapid sand filter
a. raw water from the source is supplied
b. disinfected raw water is supplied
c. raw water passed through coagulation tank is supplied
d. any one of the above