Water Supply & Sanitation Engineering Online Test

Created by

Vikash chaudhary

This is a FREE online test. Beware of scammers who ask for money to attend this test.

Get fresh, new questions in each attempt.

Total Questions: 30
Time Allotted: 30 minutes
Passing Score: 50%
Randomization: Yes
Certificate: No
Do not refresh the page!
👍 All the best!

1 / 30

1. During the water test of sewer, 2 lit/cm of dia/km of sewer line may be allowed for a period of:

a) 5 minutes

b) 30 minutes

c) 15 minutes

d) 20 minutes

2 / 30

2. The interference of the well depends upon

a) the number of wells

b) spacing between wells

c) types of wells

d) all of the above

3 / 30

3. Laying of a sewer is generally done with the help of:

a) sight rails and boning rod

b) theodolite and staff

c) leveling and staff

d) all of the above

4 / 30

4. In the one-pipe system of plumbing, the number of vertical pipes is:

a) 1

b) 2

c) 3

d) 4

5 / 30

5. Break pressure tank in a water supply system is incorporated to:

a) Store water under pressure

b) Treat water by adequate pressure

c) Release the pressure generated in the pipe

d) Break the pressure

6 / 30

6. Priming is the process of

a) removing the trapped air from the pump

b) removing the trapped water from the pump

c) removing the debris waste from the pump

d) all of the above

7 / 30

7. When the limiting non-scouring velocity is 5 m/sec, the type of sewer generally used is:

a) stone ware sewer

b) cast iron sewer

c) brick sewer

d) glazed brick sewer

8 / 30

8. What will happen if an induction motor pump is run under significantly low voltage continually?

a) Less water is pumped

b) High energy will be consumed, increasing the energy bill

c) The motor will make loud noise

d) The motor will ultimately burn-out

9 / 30

9. Turbidity for domestic water is undesirable because it

a) is unaesthetic

b) causes change of taste

c) gives apparent colour

d) none of the above

10 / 30

10. Which traps have perpendicular legs?

a) P-Trap

b) Q-Trap

c) gully trap

d) S-Trap

11 / 30

11. In the single-stack system of plumbing, the number of vertical pipes is:

a) 1

b) 2

c) 3

d) 4

12 / 30

12. In order to consider temperature changes, metal pipes are usually provided with

a) expansion joints

b) contraction joints

c) anchorages

d) pressure relief valves

13 / 30

13. Time of concentration depends upon:

a) slope of the catchment

b) intensity of rainfall

c) nature of soil

d) all of the above

14 / 30

14. A circular gravity aqueduct is preferred because of

a) its maximum hydraulic mean depth

b) maximum area per unit of wetted perimeter

c) minimum cost of construction

d) all of the above

15 / 30

15. B-coli tests are conducted to serve as a

a) very good indicator of pathogenic bacteria

b) very good indicator of acidity

c) very good indicator of alkalinity

d) means of detecting turbidity

16 / 30

16. True colour of water is due to

a) suspended solids

b) colloidal solids

c) volatile solids

d) acids in solution

17 / 30

17. Flush air inlets are sometimes called:

a) ventilated lamp holes

b) well hole

c) clean outs

d) flushing tank

18 / 30

18. The minimum height of a flushing cistern is:

a) 1 m

b) 2 m

c) 3 m

d) 5 m

19 / 30

19. Turbidity of water sample depends on

a) concentration and density of suspended and colloidal solids

b) concentration of suspended, colloidal, and dissolved solids

c) concentration of organic and inorganic matter

d) concentration, size, shape, and refractive index of suspended solids

20 / 30

20. At the socket and spigot joint,

a) the enlarged end of the pipe is called a socket

b) the normal end of the pipe is called a spigot

c) the spigot is fitted into the socket

d) all of the above

21 / 30

21. The self-cleaning velocity normally adopted for a sewer is:

a) less than 1 m/sec

b) 1.0 m/sec to 1.2 m/sec

c) 1.5 m/sec to 1.2 m/sec

d) more than 2.0 m/sec

22 / 30

22. Aeration of water is done to

a) remove carbon dioxide and taste in water

b) remove taste and odour in water

c) increase the quantity of oxygen in water

d) all of the above

23 / 30

23. Booster pump is used for

a) water supply

b) sewage pumping

c) pressure increase

d) drinking purposes

24 / 30

24. Mass curve is used for the determination of

a) area of reservoir

b) depth of reservoir

c) capacity of reservoir

d) all of the above

25 / 30

25. PH value is a symbol for....material:

a) hydrogen

b) magnesium

c) calcium

d) sodium

26 / 30

26. Gastrointestinal irritation is produced because of excess of the following in water

a) chlorides

b) sulphates

c) nitrates

d) phosphates

27 / 30

27. Baffle wall in septic tank is:

a) Short side wall

b) Long side wall

c) Honeycomb inner wall

d) None of the above

28 / 30

28. The quantity of flushing water required for pour-flush water seal latrine is:

a) 0.5-1.5 litres

b) 1.5-2.0 litres

c) 2.0-3.0 litres

d) 3.0-4.0 litres

29 / 30

29. Imhoff tank is a:

a) one-storey sedimentation tank

b) two-storey sedimentation tank

c) three-storey sedimentation tank

d) four-storey sedimentation tank

30 / 30

30. As compared to shallow tube wells, deep wells have

a) more depth

b) less depth

c) more discharge

d) less discharge

Please provide accurate information so we can send your Achievement Certificate by mail.

NameEmailPhone Number

Your score is

Please provide your feedback.

Thank you for your valuable feedback.

Buy Water Supply & Sanitation Engineering MCQ PDF for Offline Study

Water Supply & Sanitation Engineering Online Test – Paper 2

Please provide accurate information so we can send your Achievement Certificate by mail.

Related MCQs