Question

For Following Multiple Choice All Correct Answers Which Applied To Each Question.

13. At or along a water table:

• streamlines must be perpendicular to the water table.
• equipotentials must be perpendicular to the water table.
• the hydraulic head is equal to zero.
• the hydraulic head is equal to the elevation of that point on the water table.

14. A typical well hydrograph:

• may show seasonal variations in water level due to variations in recharge or transpiration demand.
• shows changes in the position of the water table through time.
• may show long-term variations in water level due to continued pumping of a nearby well.
• may be influenced by artificial groundwater recharge.

15. The specific yield of an unconfined aquifer:

• is generally equal to the porosity.
• is the only parameter determining the shape of the cone of depression surrounding a pumping well.
• has dimensions of L³.
• depends on the aquifer material (sand, gravel, clay, etc.).

16. A well is pumping water from a confined aquifer. The immediate source(s) of water to the well (or mechanism producing water) is (are):

• a decrease in fluid pressure, causing an increase in fluid volume.
• an increase in fluid pressure, causing an increase in fluid volume.
• a decrease in effective stress, causing compression of the aquifer material.
• an increase in effective stress, causing compression of the aquifer material.

Answer 1

13) At or along a waler, tablez 0 ophon 4 > the bydralic head is equal to the elevation of that point on the water tabe (Ansour ophon (4) for 3 14) A typical well hydrogoaph:) ophon 1 ;, may, show seasonal variations in watea level due to variahonen Hecharge or hraneperahan demand. Answer ophon (1) Too 14. 15) The specifiee yield of an: Sunconfined aquifer option (1) a general: equal prosperity Answers ophon (1) for 15 1o) A well as pumping women from confined aquifer The immediale source (s) of water to the well is a Ophony an increase effective stress causing comprevion of aqui ha maletid W Answer = oplon 142 hor 16 a Condusion y please, DO UPVOTE THANK you (377 ophon (4) ophon (1) Ron (1) 14) 15 s ophon 16) ca ophon (4)