Download Previous year Diploma Paper of Water Supply & Waste 4th Semester Civil/0514/December 2017 Paper
Water Supply & Waste 4th Semester Civil/0514/Dec 2017 Paper
                        SECTION-A
Q 1 a) Fill in the Blanks                                                      15×1=15 Â
  a) Process of partial or complete removal of residual chlorine in water is known as Chlorination .
  b) Salt is the main substance in chloride water.
  c) Air Valve is placed on the d/s side of all other gate valves.
  d) BOD is a measure for finding out the Strength of sewage.
  e) For the inspection of reservoirs intake pipes are provided.
  f) Masonry sewers are used when the size is large
  g) Chlorides should not be more than 100 ppm.
  h) A trap provided at the junction of house drain and street sewer is known as House drainage system
  i) The water closet is provided for receiving Human Excreta .
  j) The pipe installed to preserve the water seal of trap is called anti-syphonage system .
  b) State True or False.
  k) Trickling filters are used to treat the sewage. (True)
  l) Ozone is very efficient disinfectant. (True)
  m) Lime when added to water decreases the PH of water. (False)
  n) G.I pipes are used for house drainage. (False)
  o) Coagulation is needed when size of the particle is large. (True)
       SECTION-B
Q2. Attempt any five questions.                                  5×6=30
  a) Why analysis of water is done? Explain.
  b) Explain the term Per Capita Demand?
  c) Explain the action of chlorine used for disinfection of water.
  d) Explain skimming tanks used for the removal of floating matters.
  e) Explain the term COD and BOD.
  f) Explain the advantages and disadvantages of land treatment method of disposal of sewage.
  g) Explain the requirements of good sewer joints.
  h) Discuss the various tests for testing the house drainage.
  i) Describe the sources of dry weather flow
        SECTION-C
Q3. Attempt any three questions.                            3×10=30
  Q3. Explain the various appurtenances used for controlling the flow of water with sketches briefly.
  Q4. Explain different methods of sewage disposal?
  Q5. Explain the classification of sewers according to construction materials.
  Q6. Explain the various operations to be followed for laying underground pipes.
  Q7. Explain the various water supply fixtures and fittings with sketch.
 Process of partial or complete removal of residual chlorine in water is known as Chlorination .
 Â
Salt is the main substance in chloride water.
Â
 c) Air Valve is placed on the d/s side of all other gate valves.
 Â
BOD is a measure for finding out the Strength of sewage.
 Â
For the inspection of reservoirs intake pipes are provided.
 Â
Masonry sewers are used when the size is large
Chlorides should not be more than 100 ppm.
 Â
A trap provided at the junction of house drain and street sewer is known as House drainage system
 Â
i) The water closet is provided for receiving Human Excreta .
 Â
The pipe installed to preserve the water seal of trap is called anti-syphonage system .
 Â
b) State true or false.
(False)
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Download Previous Year Water Supply and Waste Water Engineering PSBTE Diploma Solved Paper Dec 2017 Click Here
Explain Why analysis of water is done
 Â
Term Per Capita Demand
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Action of chlorine used for disinfection of water.
 Â
Skimming tanks used for the removal of floating matters.
 Â
Term COD and BOD.
Advantages and disadvantages of land treatment method of disposal of sewage.
 Â
Requirements of good sewer joints.
 Â
Various tests for testing the house drainage.
 Â
Sources of dry weather flow
Water Supply and Waste Water Engg WSWWEÂ Civil 4th Semester PSBTE Diploma Solved Dec 2017 Paper Click Here
Explain the various appurtenances used for controlling the flow of water .
Different methods of sewage disposal
Classification of sewers according to construction materials.
The various operations to be followed for laying underground pipes.
Various water supply fixtures and fittings with sketch.