NGWA GENERAL DRILLING EXAM (ACTUAL
2025) QUESTIONS AND VERIFIED REVIEW
GUIDE
Artesian Pressure is generally...
... a result of gravity and confining beds.
What is true about the origin of rocks?
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.
Chain and drive shaft guards...
... should be kept in place.
In performing adjusts to components that are driven by
clutches and/or drive shafts, you must...
... shut unit down and lock out before adjustments are made.
, (T/F) A drilling fluid should do all of the following:
1. Cool the bit.
2. Promote longevity.
3. Remove cuttings from the bit surface.
4. Transport cuttings to the surface.
5. Plug lost circulation zones.
6. Promote hole stability.
True.
A good preventative maintenance program will create...
... operators who have a thorough understanding of
equipment.
Drilling rigs should be fueled...
... in the morning before starting the drill.
Drill rig or pump hoist engines should not be started unless...
... clutches are disengaged and gears are in neutral.
2025) QUESTIONS AND VERIFIED REVIEW
GUIDE
Artesian Pressure is generally...
... a result of gravity and confining beds.
What is true about the origin of rocks?
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.
Chain and drive shaft guards...
... should be kept in place.
In performing adjusts to components that are driven by
clutches and/or drive shafts, you must...
... shut unit down and lock out before adjustments are made.
, (T/F) A drilling fluid should do all of the following:
1. Cool the bit.
2. Promote longevity.
3. Remove cuttings from the bit surface.
4. Transport cuttings to the surface.
5. Plug lost circulation zones.
6. Promote hole stability.
True.
A good preventative maintenance program will create...
... operators who have a thorough understanding of
equipment.
Drilling rigs should be fueled...
... in the morning before starting the drill.
Drill rig or pump hoist engines should not be started unless...
... clutches are disengaged and gears are in neutral.
