ASBOG FG Practice Test 2 with Accurate
Solutions
which geologic law explains the relative ages of rocks with respect to one another in a
map or cross section?
a. principle of initial horizontality
b. law of superposition
c. law of cross-cutting relationships
d. all of the above - ANS-d. all of the above
surface exposure, in a temperate environment, of aluminum silicate minerals such as
feldspar would result in the development of which of the following clay minerals?
a. bentonite
b. kaolinite
c. montmorillonite
d. biotite - ANS-c. montmorillonite
what geologic condition would produce slow drainage within the cone of depression of
an unconfined aquifer?
a. glacial drift
b. stream gravels
c. turbidite
d. cross-bedded sands - ANS-a. glacial drift
what type of slope failure would you expect to find in a well-cemented conglomerate
overlying a shale in an area of high ground water levels?
a. glacial drift
b. stream gravels
c. turbidite
d. cross-bedded sands - ANS-b. stream gravels
when constructing an isopach map you
a. are contouring the thickness of a bed
b. are contouring the depth to a bed
c. are contouring the elevation of a bed
d. are contouring ores of equal value - ANS-a. are contouring the thickness of a bed
which of these statements is NOT true? under low pH conditions
a. metals tend to precipitate
b. cyanide and sulfide are more toxic to fish
c. ammonia is less toxic to fish
, d. acid mine drainage conditions exist - ANS-a. metals tend to precipitate
a good index fossil is characterized by
a. a wide stratigraphic range and a restricted geographic range
b. both a wide stratigraphic and geographic range
c. both a restricted stratigraphic and geographic range
d. a restricted stratigraphic range and a wide geographic range - ANS-d. a restricted
stratigraphic range and a wide geographic range
what would be the most logical engineering geologic classification of a till using the
USCS?
a. GM-GC
b. SM-SC
c. CL
d. SP - ANS-a. GM-GC
in the process of natural gas production, what is the purpose of injecting sand?
a. it is a waste product of the drilling and can be safely disposed of in the formation
b. it keeps fractures open
c. it acts to absorb the toxic elements associated with natural gas and bring them to the
surface
d. all of the above - ANS-b. it keeps fractures open
Gossan or "rust" is formed at the surface as a result of the hydration of iron oxides
during natural weathering and/or alteration processes in areas that are underlain by
valuable mineralization of metal sulfides. what technique is particularly suited for
investigating these types of ore bodies?
a. fanned borehole arrays
b. landsat remote sensing
c. detailed mapping
d. stereo-paired aerial photograph interpretation - ANS-c. subsidence due to
hydrocompaction in an unconfined aquifer
an area with a collection of closed depressions, some of which are full of water are NOT
likely to be a result of which of the following?
a. collapse of coal mines
b. collapse of rock over an underground cavity in limestone
c. subsidence due to hydrocompaction in an unconfined aquifer
d. a large landslide in an area underlain by clayey soils - ANS-c. subsidence due to
hydrocompaction in an unconfined aquifer
you discover in your site investigation that MTBE is present in the unconfined aquifer
under your site. your site has never been developed and your due diligence indicated
the presence of potential hazardous materials is not likely. what would be the best way
to determine where the likely potential source of the MTBE is?
a. NAD 83
Solutions
which geologic law explains the relative ages of rocks with respect to one another in a
map or cross section?
a. principle of initial horizontality
b. law of superposition
c. law of cross-cutting relationships
d. all of the above - ANS-d. all of the above
surface exposure, in a temperate environment, of aluminum silicate minerals such as
feldspar would result in the development of which of the following clay minerals?
a. bentonite
b. kaolinite
c. montmorillonite
d. biotite - ANS-c. montmorillonite
what geologic condition would produce slow drainage within the cone of depression of
an unconfined aquifer?
a. glacial drift
b. stream gravels
c. turbidite
d. cross-bedded sands - ANS-a. glacial drift
what type of slope failure would you expect to find in a well-cemented conglomerate
overlying a shale in an area of high ground water levels?
a. glacial drift
b. stream gravels
c. turbidite
d. cross-bedded sands - ANS-b. stream gravels
when constructing an isopach map you
a. are contouring the thickness of a bed
b. are contouring the depth to a bed
c. are contouring the elevation of a bed
d. are contouring ores of equal value - ANS-a. are contouring the thickness of a bed
which of these statements is NOT true? under low pH conditions
a. metals tend to precipitate
b. cyanide and sulfide are more toxic to fish
c. ammonia is less toxic to fish
, d. acid mine drainage conditions exist - ANS-a. metals tend to precipitate
a good index fossil is characterized by
a. a wide stratigraphic range and a restricted geographic range
b. both a wide stratigraphic and geographic range
c. both a restricted stratigraphic and geographic range
d. a restricted stratigraphic range and a wide geographic range - ANS-d. a restricted
stratigraphic range and a wide geographic range
what would be the most logical engineering geologic classification of a till using the
USCS?
a. GM-GC
b. SM-SC
c. CL
d. SP - ANS-a. GM-GC
in the process of natural gas production, what is the purpose of injecting sand?
a. it is a waste product of the drilling and can be safely disposed of in the formation
b. it keeps fractures open
c. it acts to absorb the toxic elements associated with natural gas and bring them to the
surface
d. all of the above - ANS-b. it keeps fractures open
Gossan or "rust" is formed at the surface as a result of the hydration of iron oxides
during natural weathering and/or alteration processes in areas that are underlain by
valuable mineralization of metal sulfides. what technique is particularly suited for
investigating these types of ore bodies?
a. fanned borehole arrays
b. landsat remote sensing
c. detailed mapping
d. stereo-paired aerial photograph interpretation - ANS-c. subsidence due to
hydrocompaction in an unconfined aquifer
an area with a collection of closed depressions, some of which are full of water are NOT
likely to be a result of which of the following?
a. collapse of coal mines
b. collapse of rock over an underground cavity in limestone
c. subsidence due to hydrocompaction in an unconfined aquifer
d. a large landslide in an area underlain by clayey soils - ANS-c. subsidence due to
hydrocompaction in an unconfined aquifer
you discover in your site investigation that MTBE is present in the unconfined aquifer
under your site. your site has never been developed and your due diligence indicated
the presence of potential hazardous materials is not likely. what would be the best way
to determine where the likely potential source of the MTBE is?
a. NAD 83
