Water Supply & Sanitation Engineering Online Test – Paper 2

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. A source of colour in water is due to

a) silt

b) clay

c) organic debris

d) inorganic inert matter

2 / 30

2. A pressure conduit laid underground may not be subjected to

a) internal pressure of water

b) pressure due to external load

c) longitudinal temperature stress

d) all of the above

3 / 30

3. Before entering a manhole, a candle is lowered into the manhole:

a) to illuminate it

b) to detect toxic gases

c) to give a signal to the adjacent manhole

d) to find out the presence of oxygen

4 / 30

4. Gravity water supply system starts from

a) intake

b) collection chamber

c) BPT

d) faucet

5 / 30

5. Clean out is provided in the underground......sewer in place of manhole.

a) main sewer

b) trunk sewer

c) outfall sewer

d) lateral sewer

6 / 30

6. 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

7 / 30

7. The types of pump suitable for water as well as sewage

a) rotary pump

b) centrifugal pump

c) reciprocating pump

d) impulse pump

8 / 30

8. Anti-siphonage pipe is connected to:

a) Top of PWC

b) Bottom of PWC

c) In the main pipe

d) None of the above

9 / 30

9. Which traps have parallel legs?

a) P-Trap

b) Q-Trap

c) gully trap

d) S-Trap

10 / 30

10. The maximum pressure which the pipe can withstand without any leakage during the hydrostatic pressure test is called

a) working pressure

b) test pressure

c) design pressure

d) none of the above

11 / 30

11. The types of joint not used to resist shock, vibration, etc. is

a) dresser coupling joint

b) victaulic joint

c) flanged joint

d) flexible joint

12 / 30

12. Water to the consumers may be supplied from

a) rainy wells sunk to the water level

b) infiltration well dug out on the banks of rivers

c) infiltration galleries connected to a sump well

d) all of the above

13 / 30

13. An aquiclude is

a) a non-artesian aquifer

b) a large underground water body

c) a confined bed of impervious material between aquifers

d) an artesian aquifer

14 / 30

14. Infiltration gallery is a

a) horizontal well

b) vertical well

c) inclined well

d) none of the above

15 / 30

15. Sickness of tube well indicates

a) increase in well

b) reduction in yield

c) suffering from waterborne disease

d) all of the above

16 / 30

16. Copper pipes are

a) highly resistant to acidic and alkaline water

b) easy to bend and do not sag if used for hot water supply

c) not liable to corrosion

d) all of the above

17 / 30

17. Turbidity is measured by the

a) concentration of suspended solids collected after centrifuging

b) concentration of colloidal and suspended solids after sedimentation

c) intensity of light scattered when light is passed through

d) difference in suspended solid concentration before and after filtration

18 / 30

18. A septic tank is a watertight tank where the following operation(s) take place:

a) sedimentation

b) sedimentation + digestion (anaerobic)

c) digestion (aerobic)

d) decomposition of organic and inorganic matter by bacteria

19 / 30

19. The characteristics of fresh and septic sewage are:

a) alkaline and acidic

b) acidic and alkaline

c) acidic and acidic

d) alkaline and alkaline

20 / 30

20. Asbestos pipes are

a) highly resistant to corrosion

b) light in weight and easy to transport

c) highly flexible to resist deflection up to 120

d) very smooth

21 / 30

21. PVC pipes can withstand pressure up to

a) 20 m head of water

b) 50 m head of water

c) 100 m head of water

d) 150 m head of water

22 / 30

22. Goitre is due to

a) chlorine

b) bromine

c) iodine

d) all of the above

23 / 30

23. Water demand for public use as compared to the total demand, kept in the design of waterworks for a city, is

a) 5%

b) 10%

c) 20%

d) 25%

24 / 30

24. Digesters are used for:

a) the sludge digestion under optimum conditions

b) the sludge digestion under normal conditions

c) the sludge digestion under extreme conditions

d) none of the above

25 / 30

25. Size of colloidal particles present in water is

a) 10 to 10^-1 mm

b) 10^-1 to 10^-3 mm

c) 10^-3 to 10^-6 mm

d) 10^-6 to 10^-9 mm

26 / 30

26. 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

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. HGL should always be...... above the GL

a) 5 m

b) 10 m

c) 15 m

d) 20 m

29 / 30

29. The hourly variation factor is generally taken

a) 1.2

b) 1.5

c) 1.8

d) 2.3

30 / 30

30. Which one is a waterborne virus infection?

a) malaria

b) cancer

c) dysentery

d) jaundice

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

0 Comments

Inline Feedbacks

View all comments

Water Supply & Sanitation Engineering Online Test – Paper 2

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

Related MCQs