CIVIL DIPLOMA 4TH AEMESTER MODEL QUESTION PAPER WASTE WATER ENGINEERING

 MODEL QUESTION PAPER (CIE)

Test/Date and Time		Semester/year	Course/Course Code			Max Marks
Ex: I test/6 th weak of sem 10-11 Am		IV SEM	WASTE WATER ENGINEERING			20
		Year: 2015-16	Course code:15EN42T
Name of Course coordinator CO1,CO2 Note: Answer all questions
Question				M	CL		CO	PO
1	Explain the importance of sanitation.			3	R/ U		1	1,2,5,6, 8
2	Explain the aims and objectives of sewerage work.			7	U		1	1,2,5,6, 8
3	Write the significance of the following terms in sewage analysis and its limits (i) Solids    (ii) Dissolved oxygen (iii) B.O.D. (iv) C.O.D. (v) pH value OR Explain three types of Sewerage system used to convey the sewage. .			10	U/ A		2	1,2,5,6, 10

 MODEL QUESTION PAPER (SEE)

Code: 15CE42T

IV Semester Diploma Examination CIVIL ENGINEERING BOARD

SANITARY 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. Define the terms (i) Sullage, (ii) sewage, (iii) sewerage, (iv) sewer, (v) garbage.

2. Explain the merits and demerits of Combined System.

3. Compare COD over BOD.

4. Explain the requirements of surface drains.

5. Explain the functions of sedimentation tanks.

6. Explain Oxidation ditch with neat sketch.

7. List any five principles of planning and design of house drainage.

8. Define Air Pollution and list classification of air pollutants

9. Illustrate the effects of noise on human life.

PART – B

1. Differentiate between Domestic sewage and Industrial Waste water.

2. Write the significance of the following terms in sewage analysis and its limits

(i) Solids (ii) Dissolved oxygen . (iii) pH value (iv) Chlorides (v) Nitrates

3. Explain different shapes of surface drains and their functions

4. Explain the procedure of design the storm water sewers.

5. Compute the velocity and discharge of a Storm water sewer flowing full of 0.6m dia, laid in a gradient of 1 in 300. Take Manning Constant as 0.012.

6. (a) Write a short note on Rotary Biological Disc.

(b) Explain the tertiary treatment of sewage

7. Illustrate with sketch the functioning of Trickling filter.

8. With the flow diagram explain the working of Activated Sludge Process (ASP).

9. Explain with a neat sketch the drainage section of Multi storied building. as per BIS Code of practice.

10. With a neat sketch explain Electrostatic Precipitator (ESP).

 MODEL QUESTION BANK

CO 1: Understand the concept of waste, types of sewage, sewerage system and appurtenances. Estimate the quantity of sewage of a town/city.

REMEMBER LEVEL QUESTIONS

1. State the importance of sanitation.

2. Define the terms (i) Sullage, (ii) sewage, (iii) sewerage, (iv) sewer, (v) garbage.

3. List the sources of sewage

UNDERSTANDING LEVEL QUESTIONS

1. Explain the aims and objectives of sewerage work. .

2. Explain the factors affecting the quantity of sanitary sewage.

3. Describe Water Carriage System.

4. Differentiate between Domestic sewage and Industrial Waste water.

APPLICATION LEVEL QUESTIONS

1. Estimate the quantity of domestic sewage generated for a town.

2. Explain limiting velocities of sewer.

3. 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.

4. Determine the size of a circular sewer for a discharge of 600 lps running full. Use Manning’s formula. Assume i=0.0001 & N=0.015.

5. Calculate the velocity of flow and discharge through a sewer of diameter 0.8m laid at a gradient of 1 in 600. Assume the sewer running full. Use Manning’s formula N=0.012.

CO 2: Analyse the Sewage samples using standard test procedures and ascertain the quality of sewage.

UNDERSTANDING LEVEL QUESTIONS

1. Write a short note on Strength of Sewage.

2. Explain various types of waste water sampling methods.

3. Explain the necessity of examination of sewage.

4. Write a note on physical tests of sewage.

5. Explain the three sewerage system used to convey the sewage.

6. Explain the merits and demerits of Combined System.

7. Explain the merits and demerits of Separate system.

8. Compare Separate and Combined sewerage system.

9. Explain the various types of sewers, stone ware, cast - iron, cement concrete, pre-cast sewers, pvc sewers.

10. Explain laying of sewers

APPLICATION LEVEL QUESTIONS

1. Write the significance of the following terms in sewage analysis and its limits

(i) Solids (ii) Dissolved oxygen (iii) B.O.D. (iv) C.O.D. (v) pH value

(vi) Chlorides (vii) Nitrates.

2. Compare COD over BOD.

CO 3: Compute the quantity of storm water flow in different types of surface drains.

UNDERSTANDING LEVEL QUESTIONS

1. Explain the factors affecting storm sewage.

2. Write a note on RCC sewers.

3. Explain the factors affecting the storm sewage.

4. Explain the requirements of surface drains.

5. Explain different shapes of surface drains and their functions

APPLICATION LEVEL QUESTIONS

1. Calculate the storm water flow using empirical formula for run- off.

2. Explain the procedure of design the storm water sewers.

3. Compute the velocity and discharge of a Storm water sewer flowing full of 0.6m dia, laid in a gradient of 1 in 300. Take Manning Constant as 0.012.

4. Calculate the quantity of storm water in a catchment area for the following design Area – 32000 hectares, Intensity of rainfall – 16mm/hour and Average permeability

factor – 0.5.

5. A Combined sewer of circular section is to be laid to serve a particular area with the following details.

Area to be served = 300 hectares Population = 1,00,000

Intensity of rainfall =10mm/hour Rate of supply=135 lpcd Permeability factor = 0.5

Calculate the size of the sewer when it has to run full at maximum flow with a velocity of 3m/sec.

6. Explain in brief the, location function and construction of various types of sewer appurtenances

(i)Manholes (ii) Drop manholes (iii) Inlets (iv) Catch basins(v) Traps

(vi) Flushing tanks (vii) Regulators.

7. Sketch Manhole and name the parts.

CO 4: Compare various methods of Sewage treatment and sewage/sludge disposal methods.

UNDERSTANDING LEVEL QUESTIONS

1. Write the functions of (i) Screens (ii) Skimming tanks (iii) Grit chamber

2. With a neat sketch construction of a Screen.

3. Explain the functions of sedimentation tanks.

4. Write a short note on Rotary Biological Disc.

5. Explain the tertiary treatment of sewage

6. Describe Self purification of streams.

7. Explain various methods of sewage disposal.

8. Explain various methods adopted for sludge disposal.

9. Explain Sludge digestion tank with a neat sketch.

10. Explain Sludge drying beds with a neat sketch.

11. Explain the Recycling of Wastewater.

APPLICATION LEVEL QUESTIONS

1. Illustrate with sketch the functioning of Trickling filter.

2. With the flow diagram explain the working of Activated Sludge Process (ASP).

3. Explain Oxidation ditch with neat sketch.

4. Explain Oxidation pond with neat sketch.

5. Explain Aerobic lagoon with neat sketch.

6. Explain anaerobic lagoon with neat sketch.

CO 5: Know the arrangement of sanitary fittings in a building.

UNDERSTANDING LEVEL QUESTIONS

1. Explain the importance and requirements of building drainage.

2. Illustrate the aims and objectives of building drainage.

3. List any five principles of planning and design of house drainage.

APPLICATION LEVEL QUESTIONS

1. Explain with neat sketch the layout of drainage system in Single storied building..

2. Explain with a neat sketch the drainage section of Multi storied building.

3. Explain Gully trap with a neat sketch.

4. Explain with sketch sanitary fittings - water closets , flushing cisterns, urinals, inspection chambers, traps, anti-siphonage

5. Write a short note on Dual pipe system in buildings.

6. Explain testing of house sewers.

CO 6: Identify the sources, effects and preventive measures of air and noise pollution.

REMEMBER LEVEL QUESTIONS

1. Define Air Pollution

2. List classification of air pollutants

3. Define noise

4. List Ambient Air Quality Standards in respect of Noise.

UNDERSTANDING LEVEL QUESTIONS

1. Explain the causes of air pollution.

2. Enumerate the effects of air pollution on human beings.

3. Describe (i)Ozone layer depletion (ii) Acid rain

4. Explain Green house effects and global warming.

5. Explain the effects of noise on human life and its control.

6. Describe about EIS

APPLICATION LEVEL QUESTIONS

1. With a neat sketch explain Electrostatic Precipitator (ESP).

2. Explain the prevention and control of air pollution by control equipment,

(i) Settling chambers,

(ii) Cyclone fitters,

(iii) Scrubbers,

(iv) Electrostatic precipitators.

3. Illustrate the aims and objectives of EIA.

4. With a neat flow diagram explain the methodology of EIA.