41. Flow rate between two wells in an aquifer increases when? a. the distance be

Question

41. Flow rate between two wells in an aquifer increases when? a. the distance between the wells increases b. the head difference between the wells increases c. head difference between the wells decreases d. none of the above 42. A water well is drilled into an artesian aquifer. The well is located an elevation of 200 m above sea level. The potentiometric surface at the well location has an elevation of 100 m above sea level. Which of the following applies to the well: a. The cone of depression in the aquifer has an unsaturated zone b. Effective stress decreases adjacent to the well as water is produced c. The well will flow without pumping d. None of the above 43. Which of the following is a result from the construction of a municipal sewage treatment system for Long Island, NY a. Increase in stream discharge b. Movement of fresh/salt water interface seaward c. Degradation of groundwater quality d. Dropping of well water levels 44. What is the relative fluid pressure P, in the capillary fringe zone of a soil? a. P atmospheric pressure b. P atmospheric pressure d, P=0 45. Which of the following materials has the highest infiltration capacity? a. silt b. clay c. shale d. gravel 46. What component of a confined aquifer groundwater system is equivalent to a trap er seal in a hydrocarbon prospect? a. potentiometric surface b. high porosity material within aquifer c. cone of depression around pumped well d. aquitard above the aquifer

Explanation / Answer

41) the correct option is b i.e head difference between the wells increase. It is because when difference increase the acceleration decreases and so velocity increases.

42) the correct option ic (b)

43) the correct option is (c). It is because the contaminated water of sewage have long time to connect with ground water.

44)the correct answer is a i.e atmospheric.

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