Model Question Paper CE402 Environmental Engineering DIPLOMA IN CIVIL ENGINEERING


Department of Technical Education
DIPLOMA IN CIVIL ENGINEERING
Fourth Semester
Subject: CE402 Environmental Engineering - II











Duration : 3 hours





Max. Marks: 100


                          
Model Question Paper










Note: 1. Question No 1 is compulsory. 
          2. Answer any two full questions from each of the sections.



Q.1.
a)
Fill in the blanks with appropriate word/s
1x5 = 05

i
The permissible value of domestic waste water BOD is _________


ii
The Waste from bath room and kitchen is termed as ____________


iii
__________are used to remove the Oil and Grease from waste water  


iv
__________ are used at places where there is maximum change in gradient


v
__________ is used to burn the solid waste in a closed chamber


b)
Draw a neat sketch of Manhole and label the various parts
5


Section - I

Q.2
a)
Define the following terms



1. Sewer, 2.Invert, 3.Refuse 4.Garbage  5.Sewerage System.
5

b)
What are the factors that affect the rate of flow of sewage ?
3

c)
Determine the diameter of a circular sewer to carry sewage of 100 litres/sec when it flows half full with a slope of 1in 350 using manning's formula
7




Q.3
a)
Name the three sewerage system used to convey the sewage.
3

b)
Explain various types of waste water sampling methods
5

c)
List the various test to be conducted for sewage and their significance
7




Q.4
a)
What are the requirements of an ideal surface drain ?
3

b)
List the advantages and disadvantages of CI sewers.
5

c)
Calculate the quantity of storm water in catchment area of a city



with following data Area = 30,000 hectares



Intensity of rain fall  15mm/hour



Average permeability 0.5 factor
7


Section - II

Q.5
a)
Explain with neat sketch catch basins
5

b)
What are Traps? Explain it functions
5

c)
Explain the construction of Drop manhole
5




Q.6
a)
Explain with sketch trickling filter.
7

b)
Mention the advantages of activated sludge process.
5

c)
List the methods of sludge disposal.
3
Q7
a)
Write a note on recycle of waste water.


5

b)
What are the principles and requirement of house drainage?


                     5

c)
List the methods of solid disposal.





                     5






SECTION III

Q.8
a)
Write a note on  disinfection of well water.




                                              5

b)
With neat sketch explain working of bio-gas plant.
                     7

c)
List the various sanitary fittings adopted for the house drainage.

3





Q.9
a)
List the methods of sludge disposal.

5

b)
Explain the method of incineration process.
                                              5                                                                                      

c)
Name the equipments used for controlling the air pollution.
                     5






Q.10
a)
What are the effects of air pollution on human beings?
                                              5

b)
Write a note on acid rain.


                     5

c)
Discuss the effects of noise pollution on human being.
                                              5

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