Water Supply & Waste Water Engg. WSWWE 4th Civil /0514/May 2015 Diploma Paper

Water Supply & Waste  4th Semester Civil/0514/May 2015 Paper

                                                SECTION-A

Q1. Do as directed.                                                                                                              15×1=15

      I. Per capita consumption for domestic use is 135 liters .
     II. Stop cock is a Control valve.
     III. PH value of portable water is between 6.5 and 8.5
     IV. At ridges ____Valve is used.
      V. The layout of pipes should be Short and Simple .
     VI. Storage tanks are generally preferred for Multi-Storeyed Buildings .
     VII. The best coagulant for removing the colour of water is Alum .
     VIII. A underground conduit for carrying sewage is known as Sewage System .
     IX. Dry weather flow is also called Sanitary Sewage .
     X. Smoke test is conducted for House Plumbing .

   b) State True or False.

     xi. A trap is provided for preventing the entry of fresh air. (True)
    xii. Elevated reservoirs are commonly known as overhead tanks. (True)
    xiii. Presence of calcium and magnesium chloride in water causes hardness. (True) 
    xiv. Rapid sand filter require large area as compared to slow sand filter. (False) 
     xv. The sewage containing human excreta is known as sanitary sewage. (True)