B                                                                                                Answer ALL Questions.
PART A – (10 x 2 = 20 marks)
                                                                                 1.    Define design period.                                   CO1   L1RE
            Question Paper Code : SRMTRPEN8491                                   2.    Determine the fire demand for a city with a             CO1   L5EV
                                                                                       population of 3500 using Freeman's formula.
                                                                                 3.    Estimate the head loss in a C.I transmission main       CO2
B.E / B.Tech DEGREE MODEL EXAMINATION Nov/ Dec - 2022                                                                                                L2UN
                                                                                       300mm indiameter and 2 km in length with C=100,
                       Fifth Semester                                                  when it carries a flow of 10m /min.
                Department of Civil Engineering                                  4.    What is the principle of centrifugal pump and           CO2   L3AP
                                                                                       reciprocating pumps?
             EN8491 WATER SUPPLY ENGINEERING                                     5.    List out advantages of rapid sand filter.               CO3   L1RE
                      (Regulation 2017)                                          6.    Explain the term coagulation.                           CO3   L1EV
Time: 180 minutes                                    Maximum: 100Marks           7.    What are Membrane Bioreactors?                          CO4   L5EV
                                                                                 8.    Describe about the term water softening.                CO4
                                                                                                                                                     L2UN
 Course Outcomes: The Student will be able to                                    9.                                                            CO5
                                                                                       Name the appurtenances used in water distribution             L1RE
        Insight into the structure of drinking water supply systems, including         system.
 CO1: water transport, treatment and distribution                                10.   What is a surface reservoir?                            CO5   L3AP
        Acquire knowledge in various unit operations and processes in water
 CO2:   treatment
                                                                                                       PART B – (5 x 13= 65 marks)
        Design the various functional units in water treatment
 CO3:
        Understand the water quality criteria and standards, and their
                                                                                 11    a. The population of a town as per census               CO1   L1RE
 CO4:   relation to public health                                                         records is given below. Calculate the
                                                                                          population in the year 2020 and 2035 using
        Design and evaluate water supply project alternatives on basis of                 arithmetical increase method and incremental
 CO5:   chosen criteria
                                                                                          increase method. Estimate the water demand
        Optimize the design of distribution system for water based on the real            at 135 LPCD for the year 2035.
 CO6:   time requirement.
                                                                                             year      1935    1955    1975    1995    2015
                                                                                             populat                                   99850
                                                                                                       39250   54390   68010   83630
                                                                                             ion
                                                                                                                   (Or)
     B                                                                    14. b. Explain     about    the    analysis    of        CO4     L2UN
                                                                                 distribution     networks     in     water
11. b.    Summarize various sources of water and give        CO1   L2UN          distribution and supply to buildings.
          a brief account of the characteristics of water.
                                                                          15. a. Summarize few lines about leak                    CO5     L3AP
12   a In a water supply scheme to be designed for           CO2   L3AP          detection and explain its methods. How
       serving a population of 4 lakhs, the storage                              to maintain the drinking water pipe line
       reservoir is situated at 8 km away from the city                          system.
       and the loss of head from the source to city is                                              (Or)
       16 m. Calculate the size of supply main by                         15. b. Discuss Hardy-cross       method      and         CO5     L4AN
       using Weisbach formula as well as Hazen’s                                 Equivalent pipe method to analyze
       formula assuming a maximum daily demand of                                complex pipe network.
       180 liters per day per person and half of the
       daily supply to be pumped in 8 hours. Assume
       coefficient of friction for the pipe material                                        PART C – (1 x 15 = 15 marks)
       as 0.012 in Weisbach formula and CH =130 in
       Hazen’s formula.                                                     16. a. Write a note on Iron removal from              CO4    L6CR
                              (Or)                                                 water for small communities.
12. b. Explain the different types of pumps used in          CO2   L4AN                             (Or)
        water supplies with a neat sketch                                   16. b. Explain    the    activated    carbon          CO5    L4AN
                                                                                   treatments and pollutants removed
13. a. Explain about the process carried out in              CO3   L1RE            and advantages of the process.
       sedimentation tanks and sand filters during
       water treatment operation.
                            (Or)
13. b. Show the mechanism of sand filtration. Draw a         CO3   L1RE
                                                                            Bloom’s                  L2UN -                       L5EV –
       neat sketch of filter unit sand explain its                                         L1RE-               L3AP-    L4AN -             L6CR–
                                                                           Taxonomy                 Understa                      Evalua
       working principle                                                                 Remember              Apply    Analyze            Create
                                                                          Level (BTL)                  nd                           te
                                                                            Marks             45       30         30    54         6        15
                                                                          Percentage
14. a. What is      the  role  of   computer                 CO4   L4AN
                                                                          distribution
                                                                                           25%      16.66%     16.66%    30%      3.33%    7.38%
       applications in the water distribution
       system?
                        (Or)