California Certified Engineering
Geologist (CEG)
Newest Exam – 200 Questions with -
detailed100%ANSWER s & Rationales
(2026 Edition) PDF
1. During initial project planning, the first step in assessing
geologic hazards is to:
A) Conduct subsurface borings
B) Review existing geologic and seismic maps
C) Prepare grading plans
D) Collect groundwater samples
-detailed100%ANSWER : B) Review existing geologic and
seismic maps
Rationale: 👀*** : Initial planning focuses on gathering available
data to identify potential hazards before fieldwork. Maps provide
regional context efficiently.
2. Which of the following is a primary purpose of a site
reconnaissance?
A) Perform laboratory testing
B) Verify existing geologic interpretations
C) Design retaining walls
D) Drill exploratory wells
,-detailed100%ANSWER : B) Verify existing geologic
interpretations
Rationale: 👀*** : Reconnaissance helps confirm data from
literature and maps and identify site-specific conditions before
detailed investigations.
3. An engineering geologist is tasked with evaluating
landslide potential.
Which factor is most critical to assess first?
A) Soil color
B) Slope gradient and material type
C) Ambient temperature
D) Precipitation forecasts
-detailed100%ANSWER : B) Slope gradient and material type
Rationale: 👀*** : Steep slopes and weak materials are the main
drivers of landslide risk; other factors are secondary
considerations.
4. Which of the following documents is MOST useful for
preliminary seismic hazard assessment in California?
A) A local building permit
B) CGS Special Publication 117
C) ASTM soil compaction standards
D) California Water Quality Control Plan
-detailed100%ANSWER : B) CGS Special Publication 117
Rationale: 👀*** : SP 117 provides guidance on seismic hazards
including fault zones and liquefaction potential.
,5. The term “critical review of geotechnical reports” primarily
refers to:
A) Conducting new laboratory tests
B) Evaluating data for completeness, accuracy, and applicability
C) Approving contractor’s grading plans
D) Writing environmental impact statements
-detailed100%ANSWER : B) Evaluating data for
completeness, accuracy, and applicability Rationale: 👀*** : A
CEG must critically assess existing reports to ensure reliable
interpretations for project design.
6. Which factor is LEAST relevant in preliminary foundation
assessment?
A) Bedrock depth
B) Slope stability
C) Soil bearing capacity
D) Roof color of nearby buildings
-detailed100%ANSWER : D) Roof color of nearby buildings
Rationale: 👀*** : Structural aesthetics are unrelated to
geotechnical or engineering geological assessments.
7. When planning exploratory borings, the first step is to:
A) Schedule drilling equipment
B) Select locations based on geologic mapping and
reconnaissance
C) Begin laboratory testing
, D) Prepare final grading plans
-detailed100%ANSWER : B) Select locations based on
geologic mapping and reconnaissance
Rationale: 👀*** : Borings should target areas of potential hazard
or uncertainty identified during preliminary review.
8. Which of the following best describes “engineering
geologic mapping”?
A) Mapping only topography
B) Mapping geologic units and structures relevant to engineering
decisions
C) Mapping property boundaries
D) Mapping vegetation types
-detailed100%ANSWER : B) Mapping geologic units and
structures relevant to engineering decisions
Rationale: 👀*** : Engineering geologic maps focus on features
that affect construction, slope stability, and foundation design.
9. A reconnaissance shows evidence of prior landslides. The
geologist should:
A) Ignore them if the slope is vegetated
B) Flag them for detailed investigation
C) Immediately recommend deep foundations
D) Prescribe soil stabilization
-detailed100%ANSWER : B) Flag them for detailed
investigation
Geologist (CEG)
Newest Exam – 200 Questions with -
detailed100%ANSWER s & Rationales
(2026 Edition) PDF
1. During initial project planning, the first step in assessing
geologic hazards is to:
A) Conduct subsurface borings
B) Review existing geologic and seismic maps
C) Prepare grading plans
D) Collect groundwater samples
-detailed100%ANSWER : B) Review existing geologic and
seismic maps
Rationale: 👀*** : Initial planning focuses on gathering available
data to identify potential hazards before fieldwork. Maps provide
regional context efficiently.
2. Which of the following is a primary purpose of a site
reconnaissance?
A) Perform laboratory testing
B) Verify existing geologic interpretations
C) Design retaining walls
D) Drill exploratory wells
,-detailed100%ANSWER : B) Verify existing geologic
interpretations
Rationale: 👀*** : Reconnaissance helps confirm data from
literature and maps and identify site-specific conditions before
detailed investigations.
3. An engineering geologist is tasked with evaluating
landslide potential.
Which factor is most critical to assess first?
A) Soil color
B) Slope gradient and material type
C) Ambient temperature
D) Precipitation forecasts
-detailed100%ANSWER : B) Slope gradient and material type
Rationale: 👀*** : Steep slopes and weak materials are the main
drivers of landslide risk; other factors are secondary
considerations.
4. Which of the following documents is MOST useful for
preliminary seismic hazard assessment in California?
A) A local building permit
B) CGS Special Publication 117
C) ASTM soil compaction standards
D) California Water Quality Control Plan
-detailed100%ANSWER : B) CGS Special Publication 117
Rationale: 👀*** : SP 117 provides guidance on seismic hazards
including fault zones and liquefaction potential.
,5. The term “critical review of geotechnical reports” primarily
refers to:
A) Conducting new laboratory tests
B) Evaluating data for completeness, accuracy, and applicability
C) Approving contractor’s grading plans
D) Writing environmental impact statements
-detailed100%ANSWER : B) Evaluating data for
completeness, accuracy, and applicability Rationale: 👀*** : A
CEG must critically assess existing reports to ensure reliable
interpretations for project design.
6. Which factor is LEAST relevant in preliminary foundation
assessment?
A) Bedrock depth
B) Slope stability
C) Soil bearing capacity
D) Roof color of nearby buildings
-detailed100%ANSWER : D) Roof color of nearby buildings
Rationale: 👀*** : Structural aesthetics are unrelated to
geotechnical or engineering geological assessments.
7. When planning exploratory borings, the first step is to:
A) Schedule drilling equipment
B) Select locations based on geologic mapping and
reconnaissance
C) Begin laboratory testing
, D) Prepare final grading plans
-detailed100%ANSWER : B) Select locations based on
geologic mapping and reconnaissance
Rationale: 👀*** : Borings should target areas of potential hazard
or uncertainty identified during preliminary review.
8. Which of the following best describes “engineering
geologic mapping”?
A) Mapping only topography
B) Mapping geologic units and structures relevant to engineering
decisions
C) Mapping property boundaries
D) Mapping vegetation types
-detailed100%ANSWER : B) Mapping geologic units and
structures relevant to engineering decisions
Rationale: 👀*** : Engineering geologic maps focus on features
that affect construction, slope stability, and foundation design.
9. A reconnaissance shows evidence of prior landslides. The
geologist should:
A) Ignore them if the slope is vegetated
B) Flag them for detailed investigation
C) Immediately recommend deep foundations
D) Prescribe soil stabilization
-detailed100%ANSWER : B) Flag them for detailed
investigation
