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MCQs

Total Questions : 83 | Page 3 of 9 pages
Question 21. Incrustation of the tubewell pipes may lead to _________________
  1.    reduced discharge from the tubewell
  2.    excessive discharge of sand with water
  3.    discharge of highly alkaline water
  4.    increased pumping rate
 Discuss Question
Answer: Option A. -> reduced discharge from the tubewell
Answer: (a).reduced discharge from the tubewell
Question 22. Corrosion of tubewell pipes may cause _______________
  1.    reduced discharge from the tubewell
  2.    excessive discharge of sand with water
  3.    discharge of highly alkaline water
  4.    increased pumping rate
 Discuss Question
Answer: Option B. -> excessive discharge of sand with water
Answer: (b).excessive discharge of sand with water
Question 23. Which of the following pump can effectively lift water under the maximum suction head of 6 to 8 meters?
  1.    A single-stage centrifugal pump
  2.    Submersible pumps
  3.    Turbine pumps
  4.    Jet pumps
 Discuss Question
Answer: Option A. -> A single-stage centrifugal pump
Answer: (a).A single-stage centrifugal pump
Question 24. Which of the following gives an indication of the chemical quality of the groundwater?
  1.    Geological logs
  2.    Resistivity logs
  3.    Sonic logs
  4.    Thermal logs
 Discuss Question
Answer: Option B. -> Resistivity logs
Answer: (b).Resistivity logs
Question 25. The amount of water required from wells to mature a similar crop is more than that required in canal irrigation.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option B. -> False
Answer: (b).False
Question 26. Specific yield for an unconfined aquifer is ________________
  1.    greater than porosity
  2.    less than porosity
  3.    equal to porosity
  4.    unrelated to porosity
 Discuss Question
Answer: Option B. -> less than porosity
Answer: (b).less than porosity
Question 27. The specific capacity of a confined well under equilibrium condition and within the working limits of drawdown ______________
  1.    is constant at all drawdowns
  2.    decreases as the drawdown are increased
  3.    increases as the drawdown are increased
  4.    may increase or decrease
 Discuss Question
Answer: Option B. -> decreases as the drawdown are increased
Answer: (b).decreases as the drawdown are increased
Question 28. The standard specific capacity of a well is the well-discharge per unit of drawdown. This value of discharge should be obtained at ________
  1.    any drawdown
  2.    a particular drawdown of 3 m
  3.    the first 1 m of drawdown
  4.    the first 2 m of drawdown
 Discuss Question
Answer: Option C. -> the first 1 m of drawdown
Answer: (c).the first 1 m of drawdown
Question 29. An example of aquitard stratum in the ground profile is a layer of ___________
  1.    granite rock
  2.    clay
  3.    sandy clay
  4.    sandstone
 Discuss Question
Answer: Option C. -> sandy clay
Answer: (c).sandy clay
Question 30. A perched aquifer is found within ____________
  1.    unconfined aquifer
  2.    confined aquifer
  3.    aquiclude
  4.    both confined and unconfined aquifer
 Discuss Question
Answer: Option A. -> unconfined aquifer
Answer: (a).unconfined aquifer

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