Environmental Engineering - II

Environmental Engineering - II

F.A.Q (Frequently Asked questions)

Section A

1.      What are the objects of sewage disposal? (Sharp series pg.2)

2.      Define the terms Garbage, sewage, sullage, invert, refuse, sewer, sewerage. (Sharp series pg.1 & 2)

3.      Explain the methods of sewage collection system. (Also study merits and demerits of these systems)

-          Explain conservancy and water carriage system of sewage collection. (Sharp series pg.2, 3 & 4)

4.      List the factors affecting quantity of sewage.

Ans. Population, Rate of water supply, Type of area served, Ground water infiltration

      (Refer My Chapter 2 notes, question no. 2 for full answer)

5.      What are the different types of sewage system?

6.      What are the advantages of separate, combined, partially separate system? (Sharp series pg.25, 26 & 27)

(Note: The above question is combination of three different types of question, out of which any one may be asked.)

7.      List out and draw the various shapes of sewers.

-          Give the different shapes of the surface drains and state where they are adopted. (Sharp series pg.36, 37 & 38)

8.      What is a surface drain? What are the good requirements of surface drain? (Sharp series pg.36, & 37)

9.      What do you understand by self-cleaning velocity or limiting velocity? (Sharp series pg.7)

10.  What do you understand by non-scouring velocity? (Sharp series pg.8)

11.  List the different types sewers classified on the basis of material used. (Sharp series pg.28, 29)

12.  Distinguish between Domestic & Industrial sewage. (Sharp series pg.6)

13.  Distinguish between Infiltration & Exfiltration.

. Infiltration is used to indicate the leakage of water into the sewer, whereas exfiltration indicates the leakage of sewage from sewers to ground.

Infiltration	Exfiltration
Leakage of water from the ground surrounding the sewers	Leakage of sewage into the ground surrounding the sewer
The exfiltration pollutes the underground water	The infiltration unnecessarily increases the quality of sewage.

14.  Distinguish between Dry weather flow and wet weather flow. (Sharp series pg.9)

15.  What are the process of laying and testing of sewers? (Sharp series pg.30 & 31)

16.  State the significance of D.O, B.O.D, C.O.D, pH value, chlorides. (Sharp series pg.20 & 21)

Note: Refer the previous question papers for more detailed information.

Section B

17.  Explain with a neat sketch “Manhole”, “septic tank”, “Grease and oil traps”, “Catch basins” etc. (Sharp series pg.46 to 49)

18.  Explain methods of solid waste disposal. (Dumping & Composting)

(Sharp series pg.81 & 82)

19.  Explain sanitary land fill method. (Sharp series pg.81)

20.  Explain about skimming tank with a neat sketch. (Sharp series pg.61)

21.  Explain about trickling filter with a neat sketch. And write advantages of it. (Sharp series pg.69 & 70)

22.  Explain activated sludge process with a neat flow chart. (Sharp series pg.70 & 71)

23.  Explain grit chamber with neat sketch. (Sharp series pg.62)

24.  Write briefly on incineration. (Sharp series pg.81)

25.  List advantages and disadvantages of incineration. (Sharp series pg.84)

26.  List out and explain the types of composting adopted in India. (Indore method)

(Refer vishwanath text book, pg.117)

27.  Explain briefly recycling of wastes. (Sharp series pg.83)

Section C

28.  Explain the working of Bio-gas with neat sketch. (Sharp series pg. 99)

29.  Explain different types of traps commonly used. (Sharp series pg. 91 to 94)

30.  What are the requirements of good traps? Note: Gully trap, S trap, intercepting trap are the important ones (Sharp series pg.94)

31.  What are the causes of air pollution? (Sharp series pg.106)

32.  What are the effects of air pollution? (Sharp series pg.107)

33.  Write a note Global Warming & Greenhouse effect, Acid Rain, Ozone layer depletion (Sharp series pg.110, 111, 112). 

Note: Above mentioned are three different questions.

34.  Define noise and noise pollution. What are the causes? 

(Sharp series pg.112)

35.  What are the remedies for noise pollution? (Sharp series pg.113)

Note: Please refer your old question paper and also work out the problems thoroughly.

God Bless & All the best