WATER SUPPLY ENGINEERING 2022 Question Paper — Government College of…
The 2022 WATER SUPPLY ENGINEERING previous year question paper (Government College of Engineering and Technology, Jammu), with every question and its marks.
- University: Government College of Engineering and Technology, Jammu
- Subject: WATER SUPPLY ENGINEERING
- Course: WATER SUPPLY ENGINEERING
- Branch: Civil Engineering
- Year: 2022
- Paper: supplementary
- Duration: 180 minutes
- Total marks: 100
Instructions
- Attempt five questions in all, selecting at least two questions from each section.
- Assume missing data, if any.
Questions
Section A
- Q1. (a) Explain zeolite method of removing hardness from water. State its advantages and disadvantages. 10 (b) What is turbidity ? Explain various methods of measuring turbidity in water. 10 [20 marks]
- Q2. (a) The population for a certain town is given below. Find out the population in the year 2030, 2035 and 2040 by geometrical increase method : 10 Year Population 1970 75,000 1980 1,10,000 1990 1,50,000 2000 2,00,000 2010 2,42,000 (b) Differentiate between permanent and temporary hardness. How do you remove temporary hardness ? 10 [20 marks]
- Q3. (a) Elaborate 'reservoir intake' with the help of a neat diagram. 10 (b) Describe the procedure for measuring color of a water sample in the laboratory. 10 [20 marks]
- Q4. (a) Write a short note on the following methods for bacteriological analysis of quality of water : 8 (i) Total Count test (ii) Membrane filter technique. (b) Explain all the physical tests needed for testing the quantity of natural river water flowing over an alluvial bed. Also, write down the procedure and instruments required for conducting these tests. 12 [20 marks]
Section B
- Q5. (a) Discuss the use of iodine, ozone and chloride dioxide as disinfectants. 10 (b) Differentiate between disinfection and sterilization. Why is disinfection necessary ? 10 [20 marks]
- Q6. (a) Compare the design and working features of the slow sand filter and rapid sand gravity filters along with their neat sketches. 10 (b) Design a coagulation sedimentation tank to treat water required for population 180000. Also, draw a neat sketch. 10 [20 marks]
- Q7. (a) Explain the following : 10 (i) Detention period and Settling velocity (ii) Surface overflow rate and Displacement efficiency. (b) Find the dimensions of a rectangular sedimentation tank for 5 million liters of water to be treated in one day having detention time 5 hours and flow velocity 20 cm per minute. 10 [20 marks]
- Q8. (a) Elaborate the layout of Grid Iron system of distribution network. State its advantages and dis-advantages. 10 (b) Enumerate various layouts of distribution system and explain any one in detail giving its merits and demerits. 10 [20 marks]