NGWA General Drilling Exam 2026/2027 |
National Ground Water Association |
Complete Exam Review | Questions &
Detailed Answers
NGWA(National Ground Water Association) General Drilling Exam - correct
answer-Exam Coverage
Exam coverage for the NGWA - General Drilling Exam Study Questions includes
foundational groundwater and drilling industry knowledge aligned with standards
from the National Ground Water Association (NGWA). It focuses on drilling
methods (rotary, cable tool, and direct push), well construction principles, casing
and screen installation, drilling fluids, and site preparation. The exam also
evaluates understanding of geology basics, groundwater flow, safety practices,
equipment operation, and contamination prevention.
Emphasis is placed on safe drilling operations, proper well construction
techniques, environmental protection, troubleshooting field conditions, and
applying industry best practices for groundwater development and maintenance.
What is true about the origin of rocks? - correct answer-1. Sandstones were once
sand deposits and could have been river sand, beach sands, or dune sands.
2. Some limestones contain fossils because they were once the mucky bottoms of
shallow seas.
3. Shales were once clay beds.
Sedimentary formations may reach depths of a mile or more.
, (T/F) Ground water, like surface water, has a tendency to flow downhill. - correct
answer-True.
Artesian Pressure is generally... - correct answer-... a result of gravity and
confining beds.
The three main types of rock are... - correct answer-... igneous, sedimentary, and
metamorphic.
Water would be least likely found in what geological formation? - correct answer-
Granite.
(T/F) More than 90% of our nation's fresh water is underground? - correct
answer-True.
Prior to setting the rig, you should... - correct answer-1. Make sure there are no
overhead power lines within at least 20' of the mast.
2. Locate all buried materials.
3. Verify you are on the right property and meet the correct setback
requirements.
Confined space entry rules require... - correct answer-1. Shoring of trench walls
over 4' deep.
2. Establishment of buddy system.
3. Have driller's assistant check jacks as operator levels rig.
National Ground Water Association |
Complete Exam Review | Questions &
Detailed Answers
NGWA(National Ground Water Association) General Drilling Exam - correct
answer-Exam Coverage
Exam coverage for the NGWA - General Drilling Exam Study Questions includes
foundational groundwater and drilling industry knowledge aligned with standards
from the National Ground Water Association (NGWA). It focuses on drilling
methods (rotary, cable tool, and direct push), well construction principles, casing
and screen installation, drilling fluids, and site preparation. The exam also
evaluates understanding of geology basics, groundwater flow, safety practices,
equipment operation, and contamination prevention.
Emphasis is placed on safe drilling operations, proper well construction
techniques, environmental protection, troubleshooting field conditions, and
applying industry best practices for groundwater development and maintenance.
What is true about the origin of rocks? - correct answer-1. Sandstones were once
sand deposits and could have been river sand, beach sands, or dune sands.
2. Some limestones contain fossils because they were once the mucky bottoms of
shallow seas.
3. Shales were once clay beds.
Sedimentary formations may reach depths of a mile or more.
, (T/F) Ground water, like surface water, has a tendency to flow downhill. - correct
answer-True.
Artesian Pressure is generally... - correct answer-... a result of gravity and
confining beds.
The three main types of rock are... - correct answer-... igneous, sedimentary, and
metamorphic.
Water would be least likely found in what geological formation? - correct answer-
Granite.
(T/F) More than 90% of our nation's fresh water is underground? - correct
answer-True.
Prior to setting the rig, you should... - correct answer-1. Make sure there are no
overhead power lines within at least 20' of the mast.
2. Locate all buried materials.
3. Verify you are on the right property and meet the correct setback
requirements.
Confined space entry rules require... - correct answer-1. Shoring of trench walls
over 4' deep.
2. Establishment of buddy system.
3. Have driller's assistant check jacks as operator levels rig.
