NGWA - Study Questions - General Drilling Exam
Questions & Answers Rated 100% Correct
1. Artesian Pressure is generally...........................................a result of gravity and
confining beds.
2. 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 con- tain
fossils because they
were once the mucky
bot- toms of shallow
seas.
3. Shales were
once clay beds.
Sedimentary
formations may reach
depths of a mile or
more.
3. (T/F) Ground water, like surface water, has a True.
tendency to flow downhill.
4. The three main types of rock are....................................igneous,
sedimentary,
and metamorphic.
5. Water would be least likely found in what Granite.
geological formation?
6. (T/F) More than 90% of our nation's fresh
True.
water is underground?
1/
13
, NGWA - Study Questions - General Drilling Exam
Questions & Answers Rated 100% Correct
7. Prior to setting the rig, you should...............................1. Make sure there are
no overhead power
lines within at least 20'
of the
2/
13
Questions & Answers Rated 100% Correct
1. Artesian Pressure is generally...........................................a result of gravity and
confining beds.
2. 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 con- tain
fossils because they
were once the mucky
bot- toms of shallow
seas.
3. Shales were
once clay beds.
Sedimentary
formations may reach
depths of a mile or
more.
3. (T/F) Ground water, like surface water, has a True.
tendency to flow downhill.
4. The three main types of rock are....................................igneous,
sedimentary,
and metamorphic.
5. Water would be least likely found in what Granite.
geological formation?
6. (T/F) More than 90% of our nation's fresh
True.
water is underground?
1/
13
, NGWA - Study Questions - General Drilling Exam
Questions & Answers Rated 100% Correct
7. Prior to setting the rig, you should...............................1. Make sure there are
no overhead power
lines within at least 20'
of the
2/
13
