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. 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

2 / 30

2. Scour valves are provided

a) at every summit of rising mains

b) at very depression and dead ends to drain out the waste water that may collect there

c) at street corners to control the flow of water

d) all of the above

3 / 30

3. The factor for the selection of the pumping station site is

a) distance of the source of contamination or pollution

b) height above the H.F.L. of the river

c) future expansion

d) all of the above

4 / 30

4. The minimum diameter of a sewer pipe should be:

a) 5 cm

b) 10 cm

c) 15 cm

d) 25 cm

5 / 30

5. Baffle wall in septic tank is:

a) Short side wall

b) Long side wall

c) Honeycomb inner wall

d) None of the above

6 / 30

6. 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

7 / 30

7. Manhole is said to be shallow if its depth is less than:

a) 0.7-0.9 m

b) 1.0-1.2 m

c) 0.8 m

d) 0.7 m

8 / 30

8. In the partially ventilated single-stack system of plumbing, the number of vertical pipes is:

a) 1

b) 2

c) 3

d) 4

9 / 30

9. In a circular sewer if depth of flow is 0.2 times the full depth, the nominal gradient:

a) is only provided

b) is doubled

c) three

d) none of the above

10 / 30

10. Most common sources of water in hill and terai in our country are...respectively.

a) surface and ground

b) ground and surface

c) surface and surface

d) ground and ground

11 / 30

11. Traddle pump is operated by

a) hand

b) foot

c) electric

d) all of the above

12 / 30

12. Tuberculation is caused in a metal pipe due to

a) sulphur-reducing bacteria

b) nitrogen-reducing bacteria

c) oxygen-reducing bacteria

d) phosphorus of total water demand

13 / 30

13. Turbidity is measured on..........

a) standard silica scale

b) standard cobalt scale

c) diagonal scale

d) none of the above

14 / 30

14. Groundwater from artesian wells

a) contains no suspended materials

b) contains dissolved salts

c) requires less treatment

d) all of the above

15 / 30

15. Grade aqueducts are not allowed to run

a) one-fourth full

b) half

c) three

d) full

16 / 30

16. The relation between porosity, specific yield, and specific retention is given by

a) porosity = specific yield + specific retention

b) porosity = specific yield - specific retention

c) specific yield = porosity + specific retention

d) none of the above

17 / 30

17. A heavy metal having non-toxic property

a) lead

b) copper

c) zinc

d) silver

18 / 30

18. The ratio of maximum hourly consumption and average hourly consumption of the maximum day is

a) 1.2

b) 1.5

c) 1.8

d) 2.7

19 / 30

19. Total quantity of reservoir is the sum of the following

a) breakdown reserve

b) fire reserve

c) all of the above

d) balancing reserve

20 / 30

20. True colour of water is due to

a) suspended solids

b) colloidal solids

c) volatile solids

d) acids in solution

21 / 30

21. Water of zero hardness is obtained by

a) boiling

b) lime-soda process

c) base exchange process

d) none of the above

22 / 30

22. Decrease in per capita consumption occurs by

a) use of a metering system

b) hot climate

c) good-quality water is supplied

d) all of the above

23 / 30

23. For a 150mm diameter sewer, the gradient required to generate self-cleaning velocity is:

a) 1 in 10

b) 1 in 100

c) 1 in 200

d) 1 in 300

24 / 30

24. Depth of shallow tube well shall not be more than (considering economic point):

a) 30 m

b) 40 m

c) 50 m

d) 60 m

25 / 30

25. The process of obtaining energy for their (bacteria) synthesis after the oxidation of organic or inorganic matter is called

a) photosynthesis

b) chemosynthesis

c) both

d) none

26 / 30

26. Sterilized water is generally used for

a) domestic

b) medical

c) public

d) all of the above

27 / 30

27. The types of pipe which are generally laid vertically due to low strength is

a) copper

b) concrete

c) asbestos cement

d) cast iron

28 / 30

28. Excess concentration of sodium salts in water causes

a) hardness

b) bitter taste

c) alkalinity

d) laxative effect

29 / 30

29. For separate and partially separate systems, the pattern of collection suitable is:

a) perpendicular pattern

b) interceptor pattern

c) radial pattern

d) fan pattern

30 / 30

30. Which is the oldest waterworks in Nepal?

a) Bhim Dhara scheme

b) Bir Dhara scheme

c) Sundarijal scheme

d) Dudh Pokhari scheme

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