WATER WELL DRILLING 101 FOR GENERAL EXAM ACTUAL 2025/2026 QUESTIONS AND 100% CORRECT ANSWERS

WATER WELL DRILLING 101 FOR GENERAL EXAM ACTUAL 2025/2026 QUESTIONS AND 100% CORRECT ANSWERS Well construction is comprised of the following componets? - Answer - drilling, installation of casing, placing well screens, grouting, DEVELOPMENT Minimum grouting distance? - Answer -10' is code Artesian Well - Answer -Artesian pressure is the result of gravity and the confining Aquifer Artesian Well Layers - Answer -CONFINING Layer (top) CONFINED AQUIFER (middle) IMPERMEABLE Layer (bottom) Types of drilling techniques - Answer -Cable tool, Air rotary, Mud rotary, Reverse circulation rotary, Jetting & Driving GROUTING - Answer -IS THE ACT OF INJECTING CERTAIN SUBSTANCES INTO VOID SPACE TO REDUCE OR ELIMINATE THEIR PERMEABILITY, CONSOLIDATE OR INCREASE THEIR STRENGTH. (Filling space between the casing and bore hole with cement or clay)Methods of Grouting include - Answer -Tremie pipe outside casing, Tremie pipe inside casing, Casing method or Halliburton method Neat Cement Ratio - Answer -Cement and Water, 5.5 to 6gal of h20 to 1 cubic foot of Portland cement with 3% bentonite to prevent shrinkage Tremie Pipe Outside Casing - Answer -Grout placed through small pipe outside casing, Centering guides are placed along length of casing, Lower end of casing has drillable plug, Casing held down by rig so it doesn't float, Shallow wells a positive displacement p