Water Supply Engineering MCQ Part 1- IES, RRB, GATE AND PSC EXAMS

Water Supply Engineering MCQ Part 1 Questions

Question No. 1
When the reduced level of the water source is higher than the reduced level of the consumer’s place, water is generally supplied
(A) By pumping system
(B) By gravitational system
(C) Both (a) and (b)
(D) All the above

Question No. 2
Surcharge storage zone of a reservoir, is
(A) Below dead storage
(B) Between dead storage and useful storage
(C) Above useful storage
(D) Also known as valley storage

Question No. 3
In pressure supply mains, water hammer pressure is reduced by providing
(A) Sluice valves
(B) Air valves
(C) Pressure relief valves
(D) None of these

Question No. 4
Turbidity of raw water is a measure of
(A) Suspended solids
(B) Acidity of water
(C) B.O.D.
(D) None of these

Question No. 5
If the chosen diameter of a pipe, is less than the economical diameter
(A) Cost of pipe will be less
(B) Head loss will be high
(C) Cost of pumping will be more than saving
(D) All the above

Question No. 6
Pick up the correct statement from the following:
(A) The water level in a still well, represents the ground water table level
(B) The difference between water table level and the water level in a well after pumping, is called depression head
(C) The surface of water table surrounding a well during pumping, forms a cone of depression
(D) All the above

Question No. 7
The expected discharge to be obtained from an open well sunk in coarse sand is 0.0059 cumec. If the working depression head of the well is 3 m, the minimum diameter of the well, is
(A) 2 m
(B) 2.25 m
(C) 2.50 m
(D) 3.00 m

Question No. 8
Pick up the correct statement from the following:
(A) Water with hardness upto 75 ppm is considered soft
(B) Water with hardness more than 200 ppm is considered hard
(C) Water needed for laundries should contain hardness less than 75 ppm
(D) All the above

Question No. 9
In centrifugal pump installation,
(A) Pump is properly primed before starting
(B) The diameter of the pipe at inlet as well as at outlet, is kept smaller than the delivery pipe
(C) The motor may burn out if it is started with empty delivery pipe and with open gate valve
(D) All the above

Question No. 10
The process of passing water through beds of granular materials, is called
(A) Screening
(B) Sedimentation
(C) Filtration
(D) None of these

Water Supply Engineering MCQ Part 1 Answers

Question No 1:   B

Question No 2:   C

Question No 3:   C

Question No 4:  A

Question No 5:  D

Question No 6:  D

Question No 7:  D

Question No 8:  D

Question No 9:  D

Question No 10: C