Top 350+ Solved Public Health Engineering MCQ Questions Answer
Q. The maximum permissible chloride content in water for domestic supplies should not exceed
a. 250 ppm
b. 350 ppm
c. 450 ppm
d. 550 ppm
Q. The vertical wells provided along the banks of a river to draaw ground water in dry season are called
a. Open wells
b. tube wells
c. artesian wells
d. infiltration wells
Q. When the chlorine is added beyond the break point, the process of treating the water is known as
a. plain chlorination
b. post-chlorination
c. dechlorination
d. super-chlorination
Q. The yield of a surface stream may be obtained by
a. cross-section velocity method
b. strem gauging
c. chemical method
d. all of these
Q. The natural process in which the oxygen of water of streams is consumed by sewage and at the same time, it is replenished (filled again) by the atmosphere, is known as
a. oxidation
b. deoxidation
c. self purification
d. sedimentation
Q. Biological action is used in
a. screens
b. sedimentation tanks
c. trickling filters
d. all of these
Q. Slow sand filter is more efficient for the removal of
a. bacteria
b. odour
c. turbidity
d. all of these
Q. The water obtained from the tube wells is known as
a. surface water
b. sub-surface water
c. run-off
d. potable water