Discussion
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- Question
Disinfection of drinking water, is done to remove
Options- A. odour
- B. bacterias
- C. turbidity
- D. colour.
- Correct Answer
- bacterias
- 1. Acidity in water is caused due to
Options- A. Mineral acids
- B. Free CO2
- C. Iron sulphate
- D. Aluminium sulphate
- E. All the above. Discuss
- 2. B.O.D. of treated water should be
Options- A. 10 ppm
- B. 25 ppm
- C. 20 ppm
- D. 30 ppm
- E. Nil. Discuss
- 3. The specific retention is least in case of
Options- A. Clay
- B. Sand
- C. Silt
- D. Coarse gravel. Discuss
- 4. If four fires break out in a city of population 40 lakhs and if each hydrant has three streams and duration of each fire is four hours, the total quantity of water required, is
Options- A. 1880 kilo litres
- B. 2880 kilo litres
- C. 3880 kilo litres
- D. 4880 kilo litres. Discuss
- 5. By boiling water, hardness can be removed if it is due to
Options- A. calcium sulphate
- B. magnesium sulphate
- C. calcium nitrate
- D. calcium bicarbonate
- E. none of these. Discuss
- 6. The factor affecting per capita demand, is
Options- A. size of the city
- B. climatic conditions
- C. pressure in water mains
- D. cost of water
- E. all the above. Discuss
- 7. If V is total consumption of water in litres for a population of N individuals, per capita consumption or water allowance for the water supply Q, is given by
Options- A.
- B.
- C.
- D. none of these. Discuss
- 8. Pick up the incorrect statement from the following. The underground sources of water, is from
Options- A. wells
- B. springs
- C. infiltration wells
- D. storage reservoirs
- E. none of these. Discuss
- 9. Pick up the correct statement from the following :
Options- A. Excess quantities of iron and manganese in water, cause discolouration of clothes
- B. Lead and barium salts have toxic effect
- C. Arsenic and selenium are poisonous to human health
- D. Higher copper content affects the lungs
- E. All the above. Discuss
- 10. The R.L. of ground water table on the sides of a valley is 1505 m whereas R.L. of the stream water is 1475 m. If 60° slope consists of pervious soil between R.L. 1485 m to 1500 m, the gravity spring may be expected at the point of reduced level
Options- A. 1500 m
- B. 1505 m
- C. 1475 m
- D. 1485 m. Discuss
Water Supply Engineering problems
Search Results
Correct Answer: All the above.
Correct Answer: Nil.
Correct Answer: Coarse gravel.
Correct Answer: 2880 kilo litres
Correct Answer: calcium bicarbonate
Correct Answer: all the above.
Correct Answer:
Correct Answer: storage reservoirs
Correct Answer: All the above.
Correct Answer: 1485 m.
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