Reservoir Losses MCQ

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• Which of the following guideline is incorrect for the selection of a suitable site for a reservoir?
  ক

  The geological formation should be such that it entails minimum leakage

  খ

  The cost of the dam is a controlling factor

  গ

  Too much silt-laden tributaries should be avoided as far as possible

  ঘ

  The reservoir basin should have a shallow wide opening in the valley
• Which of the following measure does not prevent or reduce the intensity of the earthquake?
  ক

  Filling the reservoir up to a limited safe level

  খ

  Draining out water from weaker adjoining rocks

  গ

  Active exploration of the dam site for the absence of inactive faults before selecting the same

  ঘ

  Increasing the pore pressure
• Which of the following dam is situated in the seismologically inactive zone in Peninsular India?
  ক

  Koyna dam

  খ

  Hirakud dam

  গ

  Tehri dam

  ঘ

  Idukki dam
• Which of the following is not used as WERs?
  ক

  Hexa decanol

  খ

  Octa decanol

  গ

  Docosanol

  ঘ

  Cyclohexanol
• Windbreakers, Integrated operation of reservoirs and Use of underground storage are all methods of ______________________
  ক

  evaporation control

  খ

  estimation of absorption losses

  গ

  estimation of absorption losses

  ঘ

  estimation of reservoir leakage
• According to the Central Water Commission, the average annual evaporation loss is estimated to be _____________
  ক

  100 cm

  খ

  125 cm

  গ

  225 cm

  ঘ

  250 cm
• If 20% of the reservoir capacity is earmarked for dead storage in a storage reservoir of 30 M.cum and the average annual silt deposition in the reservoir is 0.1 M cum, then the useful life of the reservoir will start reducing after ____________
  ক

  60 years

  খ

  120 years

  গ

  240 years

  ঘ

  300 years
• The economical height of a dam is that height for which the ____________________
  ক

  cost per unit of storage is minimum

  খ

  benefit-cost ratio is maximum

  গ

  net benefits are maximum

  ঘ

  benefit-cost ratio is minimum
• As the height of a proposed dam is increased, the cost per unit of storage initially increases and then decreases.
  ক

  True

  খ

  False