Nevada Geological Field Technician
Certification Exam Practice Questions
And Correct Answers (Verified Answers)
Plus Rationales 2026 Q&A | Instant
Download Pdf
1. Which of the following best describes the role of a geological field
technician?
A. Conducting laboratory experiments on chemical reactions
B. Performing geological surveys and collecting field data **
C. Managing mining operations from a central office
D. Designing civil engineering structures
Rationale: Geological field technicians primarily work in the field,
conducting surveys, mapping, and collecting samples for analysis.
2. The most common method for measuring the dip of rock strata in the
field is:
A. GPS survey
B. Compass clinometer **
C. Seismic reflection
D. Remote sensing
Rationale: A compass clinometer is specifically designed to measure the
angle of rock layers and their orientation.
3. When collecting soil samples for geotechnical analysis, which practice
ensures the highest data integrity?
A. Using plastic bags and mixing samples together
, B. Avoiding labeling to prevent bias
C. Using clean, airtight containers and labeling each sample **
D. Drying samples immediately in the sun
Rationale: Proper labeling and container use prevents contamination and
ensures accurate tracking of sample origin.
4. Which rock type is primarily formed from cooled lava at the Earth’s
surface?
A. Igneous intrusive
B. Igneous extrusive **
C. Sedimentary
D. Metamorphic
Rationale: Extrusive igneous rocks solidify from lava at the surface, while
intrusive rocks solidify underground.
5. During field mapping, topographic contour lines that form a “V”
pointing uphill typically indicate:
A. A ridge
B. A valley **
C. A plateau
D. A cliff
Rationale: Contour lines forming a “V” pointing uphill usually mark stream
valleys or drainage patterns.
6. Which of the following instruments is used to measure groundwater
levels in wells?
A. Clinometer
B. Leveling staff
C. Water level tape **
D. Hand lens
Rationale: Water level tapes allow accurate measurement of water depth
in boreholes or wells.
, 7. Which mineral is the hardest on the Mohs hardness scale?
A. Quartz
B. Diamond **
C. Feldspar
D. Talc
Rationale: Diamond ranks 10 on the Mohs scale and is the hardest
naturally occurring mineral.
8. The primary cause of landslides in steep terrains is:
A. Seismic waves only
B. Heavy precipitation and slope instability **
C. Volcanic eruptions
D. Surface temperature changes
Rationale: Saturated soils on unstable slopes often trigger landslides,
especially after heavy rainfall.
9. When performing a rock outcrop description, the term “foliation”
refers to:
A. The presence of fossils
B. Layered structure in metamorphic rocks **
C. Rounded grain textures
D. Porosity in sedimentary rocks
Rationale: Foliation describes planar fabric resulting from metamorphic
processes like pressure alignment of minerals.
10. The difference between a strike and a dip is:
A. Strike is the vertical angle, dip is horizontal
B. Strike is horizontal orientation, dip is vertical inclination **
C. Strike and dip are the same measurement
D. Strike measures depth, dip measures density
Rationale: Strike describes the compass direction of a horizontal line on a
plane, while dip is the angle of inclination from horizontal.
Certification Exam Practice Questions
And Correct Answers (Verified Answers)
Plus Rationales 2026 Q&A | Instant
Download Pdf
1. Which of the following best describes the role of a geological field
technician?
A. Conducting laboratory experiments on chemical reactions
B. Performing geological surveys and collecting field data **
C. Managing mining operations from a central office
D. Designing civil engineering structures
Rationale: Geological field technicians primarily work in the field,
conducting surveys, mapping, and collecting samples for analysis.
2. The most common method for measuring the dip of rock strata in the
field is:
A. GPS survey
B. Compass clinometer **
C. Seismic reflection
D. Remote sensing
Rationale: A compass clinometer is specifically designed to measure the
angle of rock layers and their orientation.
3. When collecting soil samples for geotechnical analysis, which practice
ensures the highest data integrity?
A. Using plastic bags and mixing samples together
, B. Avoiding labeling to prevent bias
C. Using clean, airtight containers and labeling each sample **
D. Drying samples immediately in the sun
Rationale: Proper labeling and container use prevents contamination and
ensures accurate tracking of sample origin.
4. Which rock type is primarily formed from cooled lava at the Earth’s
surface?
A. Igneous intrusive
B. Igneous extrusive **
C. Sedimentary
D. Metamorphic
Rationale: Extrusive igneous rocks solidify from lava at the surface, while
intrusive rocks solidify underground.
5. During field mapping, topographic contour lines that form a “V”
pointing uphill typically indicate:
A. A ridge
B. A valley **
C. A plateau
D. A cliff
Rationale: Contour lines forming a “V” pointing uphill usually mark stream
valleys or drainage patterns.
6. Which of the following instruments is used to measure groundwater
levels in wells?
A. Clinometer
B. Leveling staff
C. Water level tape **
D. Hand lens
Rationale: Water level tapes allow accurate measurement of water depth
in boreholes or wells.
, 7. Which mineral is the hardest on the Mohs hardness scale?
A. Quartz
B. Diamond **
C. Feldspar
D. Talc
Rationale: Diamond ranks 10 on the Mohs scale and is the hardest
naturally occurring mineral.
8. The primary cause of landslides in steep terrains is:
A. Seismic waves only
B. Heavy precipitation and slope instability **
C. Volcanic eruptions
D. Surface temperature changes
Rationale: Saturated soils on unstable slopes often trigger landslides,
especially after heavy rainfall.
9. When performing a rock outcrop description, the term “foliation”
refers to:
A. The presence of fossils
B. Layered structure in metamorphic rocks **
C. Rounded grain textures
D. Porosity in sedimentary rocks
Rationale: Foliation describes planar fabric resulting from metamorphic
processes like pressure alignment of minerals.
10. The difference between a strike and a dip is:
A. Strike is the vertical angle, dip is horizontal
B. Strike is horizontal orientation, dip is vertical inclination **
C. Strike and dip are the same measurement
D. Strike measures depth, dip measures density
Rationale: Strike describes the compass direction of a horizontal line on a
plane, while dip is the angle of inclination from horizontal.
