Download PTU B.Tech 2020 March Civil 6th Sem BTCE 606 Environmental Engineering Ii Question Paper

Download PTU (I.K. Gujral Punjab Technical University Jalandhar (IKGPTU) ) BE/BTech Civil Engineering (CE) 2020 March 6th Sem BTCE 606 Environmental Engineering Ii Previous Question Paper

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Roll No. Total No. of Pages : 02
Total No. of Questions : 09
B.Tech.(CE) (2012 to 2017) (Sem.?6)
ENVIRONMENTAL ENGINEERING-II
Subject Code : BTCE-606
M.Code : 71087
Time : 3 Hrs. Max. Marks : 60
INSTRUCTIONS TO CANDIDATES :
1. SECTION-A is COMPULSORY consisting of TEN questions carrying TWO marks
each.
2. SECTION-B contains FIVE questions carrying FIVE marks each and students
have to attempt any FOUR questions.
3. SECTION-C contains THREE questions carrying TEN marks each and students
have to attempt any TWO questions.

SECTION-A
1. Answer briefly :
a. What is combined system?
b. Define Time of concentration.
c. What is anaerobic decomposition?
d. Mention two difference between domestic sewage and industrial sewage composition.
e. What is BOD kinetics?
f. What is sludge stabilization?
g. Define Total Organic Carbon.
h. What are the various systems of plumbing in a building?
i. Mentions the locations where you need to provide inspection chamber.
j. What is macrophyte pond?
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1 | M C o d e 7 1 0 8 7 ( S 2 ) - 2 1 0 1
Roll No. Total No. of Pages : 02
Total No. of Questions : 09
B.Tech.(CE) (2012 to 2017) (Sem.?6)
ENVIRONMENTAL ENGINEERING-II
Subject Code : BTCE-606
M.Code : 71087
Time : 3 Hrs. Max. Marks : 60
INSTRUCTIONS TO CANDIDATES :
1. SECTION-A is COMPULSORY consisting of TEN questions carrying TWO marks
each.
2. SECTION-B contains FIVE questions carrying FIVE marks each and students
have to attempt any FOUR questions.
3. SECTION-C contains THREE questions carrying TEN marks each and students
have to attempt any TWO questions.

SECTION-A
1. Answer briefly :
a. What is combined system?
b. Define Time of concentration.
c. What is anaerobic decomposition?
d. Mention two difference between domestic sewage and industrial sewage composition.
e. What is BOD kinetics?
f. What is sludge stabilization?
g. Define Total Organic Carbon.
h. What are the various systems of plumbing in a building?
i. Mentions the locations where you need to provide inspection chamber.
j. What is macrophyte pond?
2 | M C o d e 7 1 0 8 7 ( S 2 ) - 2 1 0 1
SECTION-B
2. What are the requirements of sewage pumping stations?
3. A town having population of 40,000 disposes sewage by land treatment. It gets a per
capita assured water supply @ 130 litres/day. Assuming that the land used for sewage
disposal can absorb 80m
3
of sewage per hectare per day, determine the land area
required.
4. Discuss the trickling filter unit details and how does it work.
5. Discuss nutrient removal and polishing of waste water.
6. Draw a treatment plant for a municipal waste water discharging to a river. Discuss the
importance of each unit.

SECTION-C
7. Write short notes on :
a. Drop manhole;
b. Street inlets
8. A city discharges 125 m
3
/sec of sewage into a perennial river which is fully saturated
with oxygen and flows at a minimum rate of 1600 m
3
/sec with a minimum velocity of
0.12 m/sec. If 5-day BOD of the sewage is 300mg/l, find out where the critical DO will
occur in the river. Assume, the coefficient for purification of river is 4.0, the coefficient
of DO is 0.11, and the ultimate BOD is 125% of the 5-day BOD of the mixture of sewage
and river water.
9. Design a septic tank for a small colony of 150 persons provided with an assured water
supply from the municipal authority @ 120 litres/person/day. Assume any suitable data if
required.



NOTE : Disclosure of Identity by writing Mobile No. or Making of passing request on any
page of Answer Sheet will lead to UMC against the Student.
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