Top 150+ Solved Water Supply Engineering MCQ Questions Answer
Q. In which process, the fluoride content of water is raised?
a. chlorination
b. fluoridation
c. defluoridation
d. flocculation
Q. Which of the following is not used as a fluoride compound?
a. sodium fluoride
b. sodium silico fluoride
c. hydrofluosilicic acid
d. sodium fluro carbonate
Q. Which of the following is the pure compound?
a. sodium fluoride
b. sodium silico fluoride
c. hydrofluosilicic acid
d. sodium fluro carbonate
Q. What happens when water contains 8-20 ppm of fluoride concentration?
a. blue baby disease
b. crippling fluorosis
c. dental fluorosis
d. mottling of teeth
Q. The process of reducing the fluoride content from water is called
a. chlorination
b. fluoridation
c. defluoridation
d. flocculation
Q. Which of the following is not used for defluoridation?
a. calcium phosphate
b. copper sulfate
c. alum
d. bone charcoal
Q. Which material is used in contact filters for the removal of fluorides?
a. calcium phosphate
b. copper sulfate
c. synthetic tri-calcium phosphate
d. bone charcoal
Q. Which material is used for removing fluorides from hard water containing 3ppm of fluorides?
a. lime
b. copper sulfate
c. synthetic tri-calcium phosphate
d. bone charcoal
Q. Fluorex is a special mixture of
a. di-calcium phosphate and carbon
b. tri-calcium phosphate and hydroxyapatite
c. di-calcium phosphate and phosphoric acid
d. tri-calcium phosphate and carbon
Q. Which of the following is not a component of plumbing water supply system?
a. washbasin
b. water supply and distribution pipes
c. valves
d. storage tanks
Q. Which of the following is not a component of the plumbing drainage system?
a. water closets
b. taps
c. vent pipes
d. urinals
Q. Which of the following is not true about lead pipes?
a. lead pipes are highly resistant to corrosion
b. they have a low hydraulic coefficient of flow
c. lead pipes are highly flexible
d. when lead goes into solution, it has a cumulative poisoning effect
Q. Which of the following is not true about plastic pipes?
a. plastic pipes are cheaper than the metal pipes
b. plastic pipes are light in weight
c. plastic pipes can be installed with ordinary tools
d. plastic pipes are corrosive