NYC Civil Engineer (DCAS) — Certification
Practice Exam Questions With Correct
Answers (Verified Answers) Plus Rationales
2026 Q&A | Instant Download Pdf A+
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1. A retaining wall shows increased lateral movement after heavy rainfall.
What is the MOST likely cause?
A. Excessive concrete curing time
B. Increased hydrostatic pressure behind the wall
C. Reduced steel reinforcement ratio
D. Thermal expansion of soil
Correct Answer: B ✓
Hydrostatic pressure buildup from water infiltration is a primary cause of
increased lateral earth pressure behind retaining structures.
2. Which soil type has the highest permeability?
A. Clay
B. Silt
C. Sand
D. Peat
Correct Answer: C ✓
Sand has larger particle sizes and void spaces, resulting in high permeability
compared to finer soils.
, 3. A beam experiences maximum bending moment at which location under a
uniformly distributed load?
A. At the supports
B. At the midpoint
C. At the quarter span
D. At the free end
Correct Answer: B ✓
For a simply supported beam with UDL, maximum bending moment occurs at the
midspan.
4. What is the primary purpose of a geotechnical investigation?
A. To determine building aesthetics
B. To assess soil and rock properties for foundation design
C. To estimate construction labor costs
D. To design architectural layouts
Correct Answer: B ✓
Geotechnical investigations evaluate subsurface conditions to ensure safe
foundation design.
5. Which concrete test measures workability?
A. Compression test
B. Slump test
C. Tensile test
D. Fatigue test
Correct Answer: B ✓
The slump test measures concrete consistency and workability.
, 6. In surveying, a total station is primarily used for:
A. Soil sampling
B. Measuring angles and distances electronically
C. Mixing concrete
D. Asphalt compaction
Correct Answer: B ✓
A total station combines electronic distance measurement and angle
measurement.
7. The factor of safety in structural design is defined as:
A. Load divided by stress
B. Ultimate strength divided by allowable stress
C. Stress divided by strain
D. Dead load divided by live load
Correct Answer: B ✓
Factor of safety ensures structures remain safe under unexpected loads.
8. What is the main function of reinforcement in concrete?
A. Increase density
B. Resist tensile stresses
C. Reduce cement content
D. Improve color
Correct Answer: B ✓
Concrete is weak in tension; steel reinforcement provides tensile strength support.
9. A construction delay caused by weather is classified as:
A. Excusable delay
B. Liquidated delay
Practice Exam Questions With Correct
Answers (Verified Answers) Plus Rationales
2026 Q&A | Instant Download Pdf A+
Grade Guarantee Verified By Professionals
1. A retaining wall shows increased lateral movement after heavy rainfall.
What is the MOST likely cause?
A. Excessive concrete curing time
B. Increased hydrostatic pressure behind the wall
C. Reduced steel reinforcement ratio
D. Thermal expansion of soil
Correct Answer: B ✓
Hydrostatic pressure buildup from water infiltration is a primary cause of
increased lateral earth pressure behind retaining structures.
2. Which soil type has the highest permeability?
A. Clay
B. Silt
C. Sand
D. Peat
Correct Answer: C ✓
Sand has larger particle sizes and void spaces, resulting in high permeability
compared to finer soils.
, 3. A beam experiences maximum bending moment at which location under a
uniformly distributed load?
A. At the supports
B. At the midpoint
C. At the quarter span
D. At the free end
Correct Answer: B ✓
For a simply supported beam with UDL, maximum bending moment occurs at the
midspan.
4. What is the primary purpose of a geotechnical investigation?
A. To determine building aesthetics
B. To assess soil and rock properties for foundation design
C. To estimate construction labor costs
D. To design architectural layouts
Correct Answer: B ✓
Geotechnical investigations evaluate subsurface conditions to ensure safe
foundation design.
5. Which concrete test measures workability?
A. Compression test
B. Slump test
C. Tensile test
D. Fatigue test
Correct Answer: B ✓
The slump test measures concrete consistency and workability.
, 6. In surveying, a total station is primarily used for:
A. Soil sampling
B. Measuring angles and distances electronically
C. Mixing concrete
D. Asphalt compaction
Correct Answer: B ✓
A total station combines electronic distance measurement and angle
measurement.
7. The factor of safety in structural design is defined as:
A. Load divided by stress
B. Ultimate strength divided by allowable stress
C. Stress divided by strain
D. Dead load divided by live load
Correct Answer: B ✓
Factor of safety ensures structures remain safe under unexpected loads.
8. What is the main function of reinforcement in concrete?
A. Increase density
B. Resist tensile stresses
C. Reduce cement content
D. Improve color
Correct Answer: B ✓
Concrete is weak in tension; steel reinforcement provides tensile strength support.
9. A construction delay caused by weather is classified as:
A. Excusable delay
B. Liquidated delay
