NGWA - Study Questions - General Drilling Exam with answers

NGWA - Study Questions - General |\ |\ |\ |\ |\ |\




Drilling Exam with answers |\ |\ |\




Artesian Pressure is generally... - CORRECT ANSWERS ✔✔... a
|\ |\ |\ |\ |\ |\ |\ |\ |\



result of gravity and confining beds.
|\ |\ |\ |\ |\




What is true about the origin of rocks? - CORRECT ANSWERS
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\



✔✔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 ANSWERS ✔✔True. |\ |\ |\ |\




The three main types of rock are... - CORRECT ANSWERS ✔✔...
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\



igneous, sedimentary, and metamorphic.
|\ |\ |\




Water would be least likely found in what geological formation? -
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\



CORRECT ANSWERS ✔✔Granite. |\ |\

, (T/F) More than 90% of our nation's fresh water is underground? -
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\



CORRECT ANSWERS ✔✔True. |\ |\




Prior to setting the rig, you should... - CORRECT ANSWERS ✔✔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 ANSWERS ✔✔1.
|\ |\ |\ |\ |\ |\ |\ |\ |\



Shoring of trench walls over 4' deep.
|\ |\ |\ |\ |\ |\




2. Establishment of buddy system.
|\ |\ |\ |\




3. Have driller's assistant check jacks as operator levels rig.
|\ |\ |\ |\ |\ |\ |\ |\ |\




In setting up and leveling the rig, the right procedure is to... -
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\



CORRECT ANSWERS ✔✔1. Use suitable jack pads for stabilization.
|\ |\ |\ |\ |\ |\ |\ |\




2. Position rig for minimum leveling.
|\ |\ |\ |\ |\




3. Have driller's assistant check jacks as operator levels rig.
|\ |\ |\ |\ |\ |\ |\ |\ |\




(T/F) A well may be used as sewage disposal site only if it is cased
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\



to the bottom of the borehole. - CORRECT ANSWERS ✔✔False.
|\ |\ |\ |\ |\ |\ |\ |\ |\