🛠️ NGWA General Drilling Exam Study Guide |
2025 Edition
Your Essential Resource for Water Well Drilling Exam Preparation
✔ Covers geology, well design, drilling techniques, and safety regulations
✔ Includes True/False, scenario-based, and technical application questions
✔ Perfect for NGWA candidates and drilling professionals seeking certification
This study guide provides targeted practice and comprehensive review to enhance understanding, boost
retention, and build test-day confidence.
Be well-prepared. Drill with knowledge. Pass your exam with confidence.
, NGWA General Drilling Exam with Answers Focus on Your Success
Artesian pressure typically arises from the effects of?
Answer: gravity and the presence of confining layers.
What can be said about the formation of rocks?
Answer:
1. Sandstones originated from sand deposits, which may have been derived from riverbeds, beaches, or
dunes.
2. Certain limestones include fossils as they were once the muddy floors of shallow seas.
3. Shales were formed from ancient clay deposits.
Sedimentary formations can extend to?
Answer: depths of a mile or more.
(T/F) Groundwater, similar to surface water, tends to flow downhill.
Answer:True.
The three primary categories of rock are?
Answer:
1. igneous,
2. sedimentary
3. metamorphic.
In which geological formation is water least likely to be found?
Answer: Granite.
(T/F) Over 90% of the nation’s freshwater is located underground.
Answer: True.
Before establishing the rig, it is essential to?
Answer:
1. Ensure there are no overhead power lines within at least 20 feet of the mast.
2. Identify all buried utilities.
3. Confirm that you are on the correct property and comply with the necessary setback regulations.
Confined space entry regulations stipulate that?
Answer:
1. Trench walls deeper than 4 feet must be shored.
2. A buddy system must be established.
3. The driller's assistant should check the jacks while the operator levels the rig.
When setting up and leveling the rig, the appropriate steps include?
Answer:
1. Utilizing proper jack pads for stability.
2. Positioning the rig to minimize leveling adjustments.
2025 Edition
Your Essential Resource for Water Well Drilling Exam Preparation
✔ Covers geology, well design, drilling techniques, and safety regulations
✔ Includes True/False, scenario-based, and technical application questions
✔ Perfect for NGWA candidates and drilling professionals seeking certification
This study guide provides targeted practice and comprehensive review to enhance understanding, boost
retention, and build test-day confidence.
Be well-prepared. Drill with knowledge. Pass your exam with confidence.
, NGWA General Drilling Exam with Answers Focus on Your Success
Artesian pressure typically arises from the effects of?
Answer: gravity and the presence of confining layers.
What can be said about the formation of rocks?
Answer:
1. Sandstones originated from sand deposits, which may have been derived from riverbeds, beaches, or
dunes.
2. Certain limestones include fossils as they were once the muddy floors of shallow seas.
3. Shales were formed from ancient clay deposits.
Sedimentary formations can extend to?
Answer: depths of a mile or more.
(T/F) Groundwater, similar to surface water, tends to flow downhill.
Answer:True.
The three primary categories of rock are?
Answer:
1. igneous,
2. sedimentary
3. metamorphic.
In which geological formation is water least likely to be found?
Answer: Granite.
(T/F) Over 90% of the nation’s freshwater is located underground.
Answer: True.
Before establishing the rig, it is essential to?
Answer:
1. Ensure there are no overhead power lines within at least 20 feet of the mast.
2. Identify all buried utilities.
3. Confirm that you are on the correct property and comply with the necessary setback regulations.
Confined space entry regulations stipulate that?
Answer:
1. Trench walls deeper than 4 feet must be shored.
2. A buddy system must be established.
3. The driller's assistant should check the jacks while the operator levels the rig.
When setting up and leveling the rig, the appropriate steps include?
Answer:
1. Utilizing proper jack pads for stability.
2. Positioning the rig to minimize leveling adjustments.
