NGWA GENERAL DRILLING EXAM Practice
Questions and Answers 2026 | Updated
Revision Pack | Grade A+
• Pressure from confined groundwater due to gravity. -✓✓Artesian
Pressure
• Rocks formed from ancient sand deposits. -✓✓Sandstones
• Rocks containing fossils from shallow seas. -✓✓Limestones
• Rocks formed from ancient clay beds. -✓✓Shales
• Rock layers that can exceed one mile deep. -✓✓Sedimentary
Formations
• Safety devices that must remain in place. -✓✓Chain and Drive Shaft
Guards
• Cool bits, remove cuttings, stabilize holes. -✓✓Drilling Fluid Functions
• Enhances operators' understanding of equipment. -✓✓Preventative
Maintenance Program
, • Should occur each morning before drilling. -✓✓Drilling Rig Fueling
• Engines must be neutral and clutches disengaged. -✓✓Engine Start
Protocol
• Tailored for specific well conditions. -✓✓Drilling Mud Design
• Overloading, jerking, and kinking damage ropes. -✓✓Wire Rope
Wear Causes
• Requires sample analysis for proper construction. -✓✓Large Column
Screen Well
• Allows larger pumping equipment for better yield. -✓✓Pipe Diameter
Increase
• Hydrogeologist is most qualified for design. -✓✓Qualified Well
Designer
• Should be less than 1 foot/second. -✓✓Well Screen Intake Velocity
Questions and Answers 2026 | Updated
Revision Pack | Grade A+
• Pressure from confined groundwater due to gravity. -✓✓Artesian
Pressure
• Rocks formed from ancient sand deposits. -✓✓Sandstones
• Rocks containing fossils from shallow seas. -✓✓Limestones
• Rocks formed from ancient clay beds. -✓✓Shales
• Rock layers that can exceed one mile deep. -✓✓Sedimentary
Formations
• Safety devices that must remain in place. -✓✓Chain and Drive Shaft
Guards
• Cool bits, remove cuttings, stabilize holes. -✓✓Drilling Fluid Functions
• Enhances operators' understanding of equipment. -✓✓Preventative
Maintenance Program
, • Should occur each morning before drilling. -✓✓Drilling Rig Fueling
• Engines must be neutral and clutches disengaged. -✓✓Engine Start
Protocol
• Tailored for specific well conditions. -✓✓Drilling Mud Design
• Overloading, jerking, and kinking damage ropes. -✓✓Wire Rope
Wear Causes
• Requires sample analysis for proper construction. -✓✓Large Column
Screen Well
• Allows larger pumping equipment for better yield. -✓✓Pipe Diameter
Increase
• Hydrogeologist is most qualified for design. -✓✓Qualified Well
Designer
• Should be less than 1 foot/second. -✓✓Well Screen Intake Velocity
