Download PTU B.Tech 2020 March Civil 5th Sem BTCE 505 Environmental Engineering I Question Paper

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Roll No. Total No. of Pages : 02

Total No. of Questions : 09

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B.Tech. (CE) (2012 to 2017) (Sem.-5)

ENVIRONMENTAL ENGINEERING-I

Subject Code : BTCE-505

M.Code : 70516

Time : 3 Hrs. Max. Marks : 60

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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 has 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

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1. Answer briefly :
   1. What is the utility of alkalinity measurement in water?
   2. Name any two types of joints in water-supply pipes and its utility.
   3. What is characteristics curve?
   4. What are the various methods for population forecast?
   5. How to measure flow rate in a closed pipe?

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   6. What is coagulation?
   7. What is the basic principle of sedimentation?
   8. What is pressure relief valve?
   9. List two advantages of rotary pump.
   10. What are the methods for disinfection of water?

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SECTION-B

2. Write short notes on fire demand along with various equations to estimate it.
3. What are the causes of variation in water demand? Discuss them.
4. With a neat figure, describe the various components of canal intakes and their functions.

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5. What are different types of pumps used in water distribution system? Discuss any one of them in details.
6. Write the methods of :
   1. desalination
   2. deflouridation

SECTION-C

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6. Design a slow sand filter bed from the following data : Population= 50,000; per capita demand = 150 litres/day; rate of filtration = 180 litres/hour/sq. m; length of each bed = twice the width. Assume maximum demand is 1.8 times of the average daily demand:
7. Name various chemical and bacteriological tests of water before supplying to a community. Then discuss any two important chemical parameters and two bacteriological parameters.
8. Discuss the procedure of rainwater harvesting in a rural area to meet up the water demand with schematic diagram.

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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