WATER WELL DRILLING 101 FOR GENERAL
EXAM WITH CORRECT ACTUAL QUESTIONS
AND CORRECTLY WELL DEFINED ANSWERS
LATEST 2025 ALREADY GRADED A+
Vacuum Occurs - ANSWERS-in wells when not PROPERLY VENTED
Confined Space - ANSWERS-A space NOT DESIGNED FOR CONTINUOUS HUMAN
OCCUPANCY,
LIMITED MEANS OF ENTRY OR EXIT,
LARGE ENOUGH TO PERFORM WORK
Confined space examples - ANSWERS-vaults, tanks, crawl spaces, diked areas,
trenches, enclosed rooms, manholes, ducts, ect.
Electrocution - ANSWERS-Consider all electric lines to be alive and dangerous,
NATION RECOMMENDED CLEARANCE IS 20 FEET
(hop two feet together or shuffle to get away)
Excavations - ANSWERS-Osha requirements are for excavation and trenches 4
feet or more in depth
, Most Deaths occur in trenches 4-14feet deep
Blocking - ANSWERS-Provides more even weight distribution
Types of drilling techniques - ANSWERS-Cable tool, Air rotary, Mud rotary,
Reverse circulation rotary, Jetting & Driving
GROUTING - ANSWERS-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 - ANSWERS-Tremie pipe outside casing,
Tremie pipe inside casing,
Casing method or Halliburton method
Neat Cement Ratio - ANSWERS-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 - ANSWERS-Grout placed through small pipe outside
casing,
Centering guides are placed along length of casing,
Lower end of casing has drillable plug,
EXAM WITH CORRECT ACTUAL QUESTIONS
AND CORRECTLY WELL DEFINED ANSWERS
LATEST 2025 ALREADY GRADED A+
Vacuum Occurs - ANSWERS-in wells when not PROPERLY VENTED
Confined Space - ANSWERS-A space NOT DESIGNED FOR CONTINUOUS HUMAN
OCCUPANCY,
LIMITED MEANS OF ENTRY OR EXIT,
LARGE ENOUGH TO PERFORM WORK
Confined space examples - ANSWERS-vaults, tanks, crawl spaces, diked areas,
trenches, enclosed rooms, manholes, ducts, ect.
Electrocution - ANSWERS-Consider all electric lines to be alive and dangerous,
NATION RECOMMENDED CLEARANCE IS 20 FEET
(hop two feet together or shuffle to get away)
Excavations - ANSWERS-Osha requirements are for excavation and trenches 4
feet or more in depth
, Most Deaths occur in trenches 4-14feet deep
Blocking - ANSWERS-Provides more even weight distribution
Types of drilling techniques - ANSWERS-Cable tool, Air rotary, Mud rotary,
Reverse circulation rotary, Jetting & Driving
GROUTING - ANSWERS-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 - ANSWERS-Tremie pipe outside casing,
Tremie pipe inside casing,
Casing method or Halliburton method
Neat Cement Ratio - ANSWERS-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 - ANSWERS-Grout placed through small pipe outside
casing,
Centering guides are placed along length of casing,
Lower end of casing has drillable plug,
