Choose and best answer and add a brief explanation if possible 1. True of False: Drilling methods include augers, rotary, and sonic vibrations. 2. True or False: It is reasonable to expect that wells installed in unconfined unconsolidated aquifers will be more expensive than in deep confined and hard rock aquifers because the installation is much more complex. 3. True or False: The purpose of well development is to seal the space around the casing so that no runoff can enter from the surface. 4. True or False: The height that water will rise in a well is called the hydraulic head and groundwater will always try to flow from higher to lower hydraulic head.5. True or False: A confined aquifer has just been discovered. It has never previously been drilled or pumped. You are in charge of creating a potentiometric surface map. To construct a potentiometric surface map, you would drill wells, taking the water levels immediately after drilling, and then contour the depth to water. 6. If the elevation at the top of the well is measured to be 55 feet above sea level (asl) and the depth to water is 34 ft, what is the hydraulic head in feet above sea level? 7. In the potentiometric surface map, the dashed red line isA. cone of depressionB. flow lineC. groundwater divideD. equipotentiallineGravel5806187OrclaySand6150075101811000 m*96€958. Which of the following is true based on the cross section below?A groundwater will flow to the right in the unconfined aquiferB. groundwater will flow upward from the deeper confined aquifer to the unconfined aquiferC. groundwater will flow to the right in the confined aquifer9010.StreamWater tablePotentiometric surface of confined aquifer92,7886/Ground surface8173,57110m asl1009080796258 9. In which of the following aquifers would hand digging a well be least likely to succeed?A. BangladeshB. High PlainsC. Nubian10. Choose all that apply: Based on the potentiometric surface map of the High Plains aquifer, which of the following istrue?A. There is a groundwater divide on the border of Colorado & Kansas.B. There are some locations where groundwater appears to flow into streams.C. The aquifer is confined.D. Groundwater flow is generally from west to east.WY500060005000South Platte R.NorthPlatte Rсо280032003600500040003600320028002400PLATTESDRIVERNERepublican RKS16001200

1. True. This is because auger drilling involves the drilling of holes by the process of gouging…

Answered: Choose and best answer and add a brief…

Applications and Investigations in Earth Science (9th Edition)

9th Edition

ISBN:9780134746241

Author:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa

Publisher:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa

Chapter1: The Study Of Minerals

Section: Chapter Questions

Problem 1LR

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Choose and best answer and add a brief explanation if possible

1. True of False: Drilling methods include augers, rotary, and sonic vibrations.

2. True or False: It is reasonable to expect that wells installed in unconfined unconsolidated aquifers will be more expensive than in deep confined and hard rock aquifers because the installation is much more complex.

3. True or False: The purpose of well development is to seal the space around the casing so that no runoff can enter from the surface.

4. True or False: The height that water will rise in a well is called the hydraulic head and groundwater will always try to flow from higher to lower hydraulic head.

5. True or False: A confined aquifer has just been discovered. It has never previously been drilled or pumped. You are in charge of creating a potentiometric surface map. To construct a potentiometric surface map, you would drill wells, taking the water levels immediately after drilling, and then contour the depth to water.

6. If the elevation at the top of the well is measured to be 55 feet above sea level (asl) and the depth to water is 34 ft, what is the hydraulic head in feet above sea level?