Water Well Drilling 101 for General Exam
2024/2025 Exam Questions with 100%
Correct Answers | Latest Update
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)
COPYRIGHT©NINJANERD 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY 1
STATEMENT. ALL RIGHTS RESERVED
, 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 pump can be used.
Tremie Pipe Inside Casing - 🧠ANSWER ✔✔Grout Pipe installed
temporarily inside casing,
Cement plug or float attached at the bottom of the casing,
Casing is filled with water and grout pumped through pipe,
Casing must be cleaned of all debris after grouting
Well Screens - 🧠ANSWER ✔✔Filtering device allowing water while holding
back sand,
.006 TO .250
COPYRIGHT©NINJANERD 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY 2
STATEMENT. ALL RIGHTS RESERVED
2024/2025 Exam Questions with 100%
Correct Answers | Latest Update
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)
COPYRIGHT©NINJANERD 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY 1
STATEMENT. ALL RIGHTS RESERVED
, 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 pump can be used.
Tremie Pipe Inside Casing - 🧠ANSWER ✔✔Grout Pipe installed
temporarily inside casing,
Cement plug or float attached at the bottom of the casing,
Casing is filled with water and grout pumped through pipe,
Casing must be cleaned of all debris after grouting
Well Screens - 🧠ANSWER ✔✔Filtering device allowing water while holding
back sand,
.006 TO .250
COPYRIGHT©NINJANERD 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY 2
STATEMENT. ALL RIGHTS RESERVED
