Water Resources Engineering - I Mid - I, September - 2014

1.The diameter of the standard Symon’s type rain guess
  • 12.7 cm
  • 7.5 cm
  • 5 cm
  • 15 cm
Answer: A
2.Maximum surface run off is favoured due to
  • Leaf shaped catchment
  • A flash storm
  • Improved land management
  • presence of forest area
Answer: B
3.Isohytes are
  • Areas of equal precipitation
  • lines of equal Precipitation
  • lines of equal temperature on maps
  • lines of equal barometric pressure on maps
Answer: B
4.In filtration occurs of capacity rate
  • Due to watershed leakage
  • If there had been antecedent rain fall
  • If the intensity of the rain fall is lower than the capacity
  • during a first flash storm fallowing summer
Answer: D
5.Unit hydro graph method for flood estimation is usually applied to
  • Large basins
  • hilly areas
  • Small and medium sized basins
  • occeans
Answer: C
6.Darcy’s law of flow through soil assumes that the flow is de
  • steady and laminar
  • non uniform
  • turbulent
  • transition
Answer: A
7.In a tube well strainers are used to
  • reduce the area of percolation
  • prevent average soil particles from entering the bored hole
  • improve the quality of the water
  • lift the stored water
Answer: B
8.An aquifer that is confined at the bottom but not at the top is known as
  • partially confined acquifer
  • aquiclude
  • semiconfined acquifer
  • Unconfined acquifer
Answer: D
9.Unit hydrograph method is usually adopted for estimating floods when the catchmet area is
  • 100 sq.km only
  • less than 5000 sq.km
  • more than 7500 sq.km
  • more than 10000 sq.km
Answer: B
10.Evapotransportation depends on
  • hours of bright sum shine
  • type of crop
  • method of irrigation
  • all of the above
Answer: D
11.Run off volumes are generally computed for large areas by using _________
Answer: infiltration Indices
12.The instrument used for the measurement of wind speed is _________
Answer: anemometer
13.Precipitation falling during the growing period of crop that is available to meet the evaporation needs of the crop is called ____________ rain fall.
Answer: Effective
14.A Permeable stratum which is capable to yield appreciable quantity of ground water under gravity is known as __________
Answer: aquifer
15.Double mass curve method is employed in extrapolation of __________
Answer: run off data
16.A hydrograph is a plot of ________________
Answer: Stream flow against time
17.Rainfall is measured in __________
Answer: centimeter, mm (or) meters
18.A tube well is suitable when the sub soil formation is made up of __________
Answer: alluvium
19.____________ formula is widely used in ground water problems.
Answer: Theis
20.Delayed ground water flow reaching a stream is known as __________
Answer: basic flow