NGWA - Study Questions - General Drilling Exam Questions and Answers Solved Correctly Rated A+
... a result of gravity and confining beds. - Answers Artesian Pressure is generally...
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. - Answers What is true about the origin of
rocks?
True. - Answers (T/F) Ground water, like surface water, has a tendency to flow downhill.
... igneous, sedimentary, and metamorphic. - Answers The three main types of rock are...
Granite. - Answers Water would be least likely found in what geological formation?
True. - Answers (T/F) More than 90% of our nation's fresh water is underground?
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. - Answers Prior to
setting the rig, you should...
1. Shoring of trench walls over 4' deep.
2. Establishment of buddy system.
3. Have driller's assistant check jacks as operator levels rig. - Answers Confined space entry rules
require...
1. Use suitable jack pads for stabilization.
2. Position rig for minimum leveling.
3. Have driller's assistant check jacks as operator levels rig. - Answers In setting up and leveling the rig,
the right procedure is to...
False. - Answers (T/F) A well may be used as sewage disposal site only if it is cased to the bottom of the
borehole.
... place where it is least likely to be contaminated. - Answers When considering the well site, the more
important thing to consider is the...
... clears drill cuttings. - Answers Air forced down the drill pipe...
... a result of gravity and confining beds. - Answers Artesian Pressure is generally...
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. - Answers What is true about the origin of
rocks?
True. - Answers (T/F) Ground water, like surface water, has a tendency to flow downhill.
... igneous, sedimentary, and metamorphic. - Answers The three main types of rock are...
Granite. - Answers Water would be least likely found in what geological formation?
True. - Answers (T/F) More than 90% of our nation's fresh water is underground?
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. - Answers Prior to
setting the rig, you should...
1. Shoring of trench walls over 4' deep.
2. Establishment of buddy system.
3. Have driller's assistant check jacks as operator levels rig. - Answers Confined space entry rules
require...
1. Use suitable jack pads for stabilization.
2. Position rig for minimum leveling.
3. Have driller's assistant check jacks as operator levels rig. - Answers In setting up and leveling the rig,
the right procedure is to...
False. - Answers (T/F) A well may be used as sewage disposal site only if it is cased to the bottom of the
borehole.
... place where it is least likely to be contaminated. - Answers When considering the well site, the more
important thing to consider is the...
... clears drill cuttings. - Answers Air forced down the drill pipe...
