Water Supply & Waste Water Engg.WSWWE 4th Civil /0514/Dec 2016 Diploma Paper

Water Supply & Waste 4th Semester Civil/0514/Dec 2016 Paper

                                                SECTION-A

Q1. Fill in The Blanks                                                                                                             15×1=15

     a) The characteristic of water which prevents the leathering of soap is known as Hardness.
     b) Salt is the main substance in chloride water.
     c) Alum is use for Water Purification . 
     d) Disinfection process is done to kill Vegetative bacteria from water
     e) To prevent water to flow back in opposite direction Reflux valve is used.
     f) The lower most surface of underground conduit or drain is known as Invert .
     g) The kitchen waste is called as Garbage.
     h) Dry weather flow is also called as Sanitary Sewage.
      i) The water closet is provided for receiving Human Excrement.
      j) Lying of sewers is usually done with the help of Sight Rails and Boning Rods.

   b) State True or False.

    a) The temperature of potable drinking water should be between 400 to 600. (True)
    b) Ozone is very efficient disinfectant. (True)
    c) Grease trap are used outside kitchens, canteens and motor garages. (True)
    d) Smoke test is done for drainage pipes located in buildings. (False)
    e) Oxidation    ponds do not create mosquito nuisance. (False)