Top 350+ Solved Public Health Engineering MCQ Questions Answer
Q. The process of dechlorination is followed by
a. pre-chlorination
b. post cholorination
c. super chlorination
d. double chlorination
Q. The horizontal tunnels constructed at shallow depths along the banks of a river to intercept the ground water table are called
a. canals
b. infiltration galleries
c. springs
d. lakes
Q. When the pO value of water is 5, then it has
a. no perceptible odour
b. distinct odour
c. faint odour
d. extremely strong odour
Q. The activated sludge process of sewage treatment
a. requires smaller area for construction of whole unit
b. requires smaller water head for operation than trickling filters
c. has high efficiency
d. all of the above
Q. Turbidity of water is expressed in terms of
a. silica scale
b. platinum cobalt scale
c. pO value
d. none of these
Q. The temporary hardness in water is cused due to the salts like
a. chlorides
b. nitrates
c. carbonates
d. sulphates
Q. A valve which allows the water to flow in one direction but prevents its flow in the reverse direction, is known as
a. sluice valve
b. reflux valve
c. air relief valve
d. pressure relief valve
Q. The pipe joint commonly used in pumping stations is
a. flexible joint
b. flanged joint
c. expansion joint
d. spigot and socket joint