NGWA General Drilling Exam Review Guide 2025
Board Style Exam Review | Latest APEA Blueprint |
Detailed Rationales
Cement Mixing for Seals - -answer-Dry cement with water is not acceptable.
Pressure Grouting - -answer-Requires grout under pressure for effective sealing.
Cement Grouting Technique - -answer-Use tremie pipe for bottom-up placement.
Grout Length Regulations - -answer-Laws dictate minimum grout lengths for wells.
Annular Space Grouting - -answer-Depends on well drilling method used.
Grouting Material - -answer-Neat cement is preferred for grouting.
Sanitary Surface Seal Requirement - -answer-Pitless adaptors still need surface seals.
Water System Pressure Settings - -answer-Indicates pump start and shut-off pressures.
Water Weight - -answer-One gallon weighs 8.34 pounds.
Well Water Volume Calculation - -answer-150' well holds 150 gallons of water.
Gallons per Cubic Foot - -answer-One cubic foot contains 7.48 gallons.
Board Style Exam Review | Latest APEA Blueprint |
Detailed Rationales
Cement Mixing for Seals - -answer-Dry cement with water is not acceptable.
Pressure Grouting - -answer-Requires grout under pressure for effective sealing.
Cement Grouting Technique - -answer-Use tremie pipe for bottom-up placement.
Grout Length Regulations - -answer-Laws dictate minimum grout lengths for wells.
Annular Space Grouting - -answer-Depends on well drilling method used.
Grouting Material - -answer-Neat cement is preferred for grouting.
Sanitary Surface Seal Requirement - -answer-Pitless adaptors still need surface seals.
Water System Pressure Settings - -answer-Indicates pump start and shut-off pressures.
Water Weight - -answer-One gallon weighs 8.34 pounds.
Well Water Volume Calculation - -answer-150' well holds 150 gallons of water.
Gallons per Cubic Foot - -answer-One cubic foot contains 7.48 gallons.