Water Distribution System MCQ – Environmental Engineering

1. The water supply system means

  1. The entire scheme of collection and disposal of liquid waste
  2. Construction of reservoirs
  3. Construction of canals
  4. The complete layout from the source of supply to the distribution system
Answer
Answer. d

2. The design period for a water supply project is taken as

  1. 5 to 10 years
  2. 10 to 15 years
  3. 15 to 20 years
  4. 20 to 30 years
Answer
Answer. d

3. Pump commonly used for lifting water in water supply mains is

  1. centrifugal pump
  2. axial-flow pump
  3. reciprocating pump
  4. rotary-type pump
Answer
Answer. b

4. The suitable layout for a water supply distribution system for an irregularly grown town is

  1. Grid iron system
  2. Dead end system
  3. Ring system
  4. Radial system
Answer
Answer. b

5. The suitable layout for a water supply distribution system, for a city of roads of rectangular pattern is

  1. Dead end system
  2. Grid iron system
  3. Ring system
  4. Radial system
Answer
Answer. b

6. The purpose of providing a balancing reservoir in a water supply distribution system is to

  1. equalize pressure in the distribution system
  2. store adequate quantity of water to meet requirement in case of breakdown of inflow
  3. store adequate fire fighting reserve
  4. take care of fluctuations in the rate of consumption
Answer
Answer. d

7. From high level water resource, the water supply system used in termed as

  1. Pumping and storage system
  2. Pumping system
  3. Gravity system
  4. Dual system
Answer
Answer. c

8. The equation used commonly for the design of distribution system for water supply is designed by

  1. Manning
  2. Darcy
  3. Hazen and Williams
  4. Kutter
Answer
Answer. c

9. Ferrule is one of the important appurtenances installed in

  1. combined sewerage system
  2. water distribution system
  3. house drainage systemn
  4. storm sewerage system
Answer
Answer. b

10. The four major water supply distribution systems are

  1. dead end, trees, grid iron and reticulation
  2. dead end, trees, grid iron and circular
  3. trees, grid iron ring and radial
  4. tree, reticulation, circular and ring
Answer
Answer. c

11. For water supply to residences, the service are provided by

  1. P.V.C. pipes
  2. lead pipes
  3. galvanized iron pipes
  4. cast iron pipes
Answer
Answer. c

12. The method which is most widely used for analyzing and designing the pipes of all types of complex water distribution network is

  1. Equivalent pipe method
  2. Hardy-cross method
  3. Circle method
  4. Electric network analyser method
Answer
Answer. b

13. Water losses in water supply is assumed as

  1. 5%
  2. 7.5%
  3. 10%
  4. 15%
Answer
Answer. d