### CIVIL DIPLOMA 3RD SEM MODEL QUESTION PAPER (CIE)

MODEL QUESTION PAPER (CIE)  CIVIL DIPLOMA 3RD SEMESTER

 Test/Date and Time Semester/year Course/Course Code Max Marks Ex: I test/6 th weak of sem 10-11 Am III SEM WATER SUPPLY ENGINEERING 20 Year: 2015-16 Course code:15EN32T Name of Course coordinator CO1,CO2 Answer all questions Question M CL CO PO 1 List the methods of forecasting population. 3 R 1 1,2,5,6,10 2 Explain with sketch Infiltration Galleries and Infiltration Wells. 7 U 1 1,2,5,6,10 3 Explain with sketches the function, constructional details, working and operations of Aeration & Slow sand filter OR Clarifier & Rapid sand filter 10 A 2 1,2,6,10

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TEXT BOOKS & REFERENCES

1. Water Supply & Sanitary Engineering- by Rangwala.

2. Water Supply Engineering Vol-I - by S.K.Garg.

3. Water Supply & Sanitary Engineering- by Birde.

4. Water Supply Engineering Vol-I - by Gurucharan Singh.

5. Environmental Engg.-Vol-I –by P.N. Modi.

6. Water Supply Engg.-Vol-I – by Fair & Geir.

7. Water Supply, Waste Disposal and Environmental Pollution Engineering-(Khanna publication) A.K.chatterjee .

8. Water Supply Engineering by Dr B.C.Punmia, Jain & Jain.

### MODEL QUESTION PAPER (SEE)

Code: 15CE32T

Diploma in Civil

Engineering III Semester

Course title: WATER SUPPLY ENGINEERING

Time: 3 Hours] [Max Marks: 100]

Note: i) Answer any SIX questions from PART - A. Each question caries 05 marks.

ii) Answer any SEVEN Questions from PART - B. Each question caries 10 marks.

PART – A

1. State the factors affecting Per Capita Demand.

2. Explain(i) Hydrosphere (ii) Biosphere

3. State any five BIS standards for drinking water.

4. Describe Break point chlorination

5. Distinguish intermittent system with continuous system of water supply?

6. Explain the functions of Sluice Valves with sketches

7. Distinguish between HDP pipe and CI pipe

8. Explain rural water supply systems.

9. List the Legislative acts to water pollution control

PART – B

1. a) List the sources for pipe corrosion

b) List the important points in any water supply

2. The following data have been observed from the census department

 Sl No Year Population 1 1955 6000 2 1965 10000

 3 1975 15000 4 1985 20500 5 1995 27000 6 2005 35500 7 2015 45000

### Estimate the population for the year 2025 and 2035 by Arithmetical Increase method. 3. Explain with sketch Infiltration Galleries. 4.Summarise the merits and demerits of different systems of lay-out in a distribution system 5.Explain with sketches the function, constructional details, working and operations of Rapid sand filter 6. Explain Chemical tests conducted on water and their significances 7. Explain with sketches the following systems of lay-outs in distribution system i) Dead end; ii) Grid iron; 8. Sketch the constructional details and uses of following water supply fittings: i) Ferrule; ii) Goose neck 9. Explain the methods of Recharging ground aquifer 10. Explain the prevention and control of water pollution MODEL QUESTION BANK

CO 1: Understand relations between the environment and ecology ,estimating water requirement for public water supply scheme.

REMEMBER LEVEL QUESTIONS

1. Define the terms Ecology and ecosystem?

2. Describe how the animals depend on plants?

3. Explain the relations between plant, animals and Environment.

4. List the important points in any water supply scheme.

5. List the methods of forecasting population.

6. State the factors affecting Per Capita Demand.

7. List the sources of water

8. State the different methods of conveyance of water.

9. List the sources for pipe corrosion

UNDERSTANDING LEVEL QUESTIONS

1. Explain Atmosphere, Lithosphere, Hydrosphere and Biosphere?

2. Explain briefly the importance of Ecosystem and ecology.

3. Explain the necessity of water supply.

4. Explain about Per Capita Demand

5. Explain the major sources of water supply scheme?

6. Explain different types of pipe materials used for conveyance of water.

7. Summarise the merits and demerits of (i) C.I pipes (ii) Concrete pipes (iii) Plastic pipes

8. Describe pipe corrosion and its effects?

APPLICATION LEVEL QUESTIONS

1. The following data have been observed from the census department
 Sl No Year Population 1 1955 6000 2 1965 10000 3 1975 15000 4 1985 20500 5 1995 27000 6 2005 35500 7 2015 45000

Estimate the population for the year 2025 and 2035 by Arithmetical Increase method.

2. Estimate the requirement of water for various uses in a) Domestic uses b) Industrial Use c) Fire Fighting d) Public uses e) Losses.

3. Estimate the total quantity of water required for a town

4. Explain with sketch Infiltration Galleries and Infiltration Wells.

5. Explain with neat sketches, reservoir intake, river intake and canal intake.

6. Explain with neat sketches, different types of pipe joints.

7. Explain the procedure of laying pipes.

8. Explain the method of testing of pipe lines.

CO 2: Ascertain the quality of water as per BIS and select the appropriate treatement method required for the water source.

REMEMBER LEVEL QUESTIONS

1. List the impurities present in water.

2. State any five BIS standards for drinking water.

3. List the different chemicals used in the treatment of water?

UNDERSTANDING LEVEL QUESTIONS

1. Explain Chlorination and its advantages.

2. Explain different forms of chlorination and explain any one.

3. Describe Break point chlorination

APPLICATION LEVEL QUESTIONS

1. Explain physical tests conducted on water and their significances

2. Explain Chemical tests conducted on water and their significances

3. Explain Bacteriological tests conducted on water.

4. Sketch the flow diagram for the water treatment works.

5. Explain with sketches the function, constructional details, working and operations of i) Aeration; ii) Flash Mixer; iii) Flocculator; iv) Clarifier v) Slow sand filter; vi) Rapid sand filter, vii) Pressure filters viii) chlorinating chamber

6. Explain with sketch the chemical feeding devices?

7. Explain the method of determining the dosage of coagulants?

8. Estimate the quantity of alum required by 15MLD of water at treatment plants. When 12 mg/L of alum is required.

9. Calculate the amount of bleaching powder to be required per day to treat 3.0 MLD of water for a town. The percentage of chlorine in bleaching powder is 30%. The chlorine required is 0.4 mg/l to maintain residual chlorine of 0.15 mg/l.

CO 3: Study and Establish the suitable distribution system for a locality and know the appurtenances used.

UNDERSTANDING LEVEL QUESTIONS

1. Distinguish intermittent system with continuous system of water supply?

2. Explain the necessity of service reservoirs.

3. Distinguish underground service reservoirs with overhead service reservoirs

4. Summarise the merits and demerits of different systems of lay-out in a distribution system

APPLICATION LEVEL QUESTIONS

1. Explain with sketches the different systems of distribution i) Gravity distribution; ii) Combined gravity and pumping system; iii) pumping system.

2. Sketch the following i) Rectangular overhead service reservoir; ii) Intz tank showing all the accessories

3. Explain with sketches the following systems of lay-outs in distribution system i) Dead end; ii) Grid iron; iii) Radial; iv) Ring.

4. Judge the suitability of the system of lay-out for a given locality.

5. Explain the functions of the following appurtenances with sketches i) Sluice Valves ii) Check valves or reflex valves; iii) Air valves iv) Drain valves or blow-offs; v) Fire hydrants; vi) water meters.

CO 4: Know the arrangement of water supply and fittings in a building.

UNDERSTANDING LEVEL QUESTIONS

1. Explain the modern systems for portable water treatment

2. Distinguish between HDP pipe and CI pipe.

3. Describe requirements of water supply arrangement for single storied buildings as per B.I.S code of practice

APPLICATION LEVEL QUESTIONS

1. Sketch a general lay-out to show suitable water supply buildings with mains.

2. Explain interior water supply arrangements for a single and multi-storied building as per I. S. Code

3. Sketch the constructional details and uses of following water supply fittings: i)

Water main; ii) Service pipe; iii) supply pipe; iv) distribution pipe; v) domestic storage tank; vi) stop cock; vii) Air gap; viii) ferrule; ix) Goose neck; x) Water tap

4. Sketch the general lay-out for hot water supply for a domestic building using both electric water heaters and solar water heaters.

CO 5: Know the conservation of water and rural water supply.

UNDERSTANDING LEVEL QUESTIONS

1. Explain rural water supply systems.

APPLICATION LEVEL QUESTIONS

1 Explain the methods of harvesting of Rain water

2 Explain the methods of Recharging ground aquifer

3 Explain disinfection of well?

CO 6: Identify the sources of water pollution and suitable control measures..

UNDERSTANDING LEVEL QUESTIONS

1 Write Water pollution control acts

APPLICATION LEVEL QUESTIONS

1 Write the causes of water pollution, Sources - Point and Non-point sources, effects on plants and animals

2 Explain the prevention and control of water pollution