Structural Engineering (Se) Examination
Practice Exam Questions And Correct
Answers (Verified Answers) Plus
Rationales 2026 Q&A | Instant
Download Pdf
1. What is the minimum specified compressive strength of concrete for
structural members exposed to freeze-thaw conditions according to ACI
318?
A) 3,000 psi
B) 4,000 psi
C) 5,000 psi
D) 6,000 psi
Rationale: ACI 318 requires a minimum of 4,000 psi for concrete exposed
to freeze-thaw conditions to ensure adequate durability and resistance to
cyclic freezing and thawing damage.
2. The effective length factor K for a column braced against sidesway and with
both ends fixed against rotation is:
A) 0.5
B) 0.65
C) 0.8
D) 1.0
Rationale: For a column with both ends fixed against rotation and braced
against sidesway, the theoretical K factor is 0.65, which accounts for
partial fixity at the connections.
,3. Which steel shape has the highest torsional constant for a given cross-
sectional area?
A) W-shape
B) S-shape
C) C-shape
D) HSS rectangular
Rationale: Hollow Structural Sections (HSS) have significantly higher
torsional constants than open sections like W, S, or C shapes because the
closed cross-section resists torsion through Saint-Venant torsion more
efficiently.
4. The overturning moment on a retaining wall is primarily resisted by:
A) Active earth pressure
B) Weight of the wall and backfill
C) Passive earth pressure
D) Water pressure
Rationale: The resisting moment against overturning is generated
primarily by the weight of the wall itself and the soil backfill above the
heel, creating a stabilizing moment about the toe.
5. In prestressed concrete, the term "camber" refers to:
A) Downward deflection under service load
B) Upward deflection due to prestressing force
C) Lateral displacement during stressing
D) Creep deformation over time
Rationale: Camber is the upward deflection of a prestressed concrete
member caused by the eccentric prestressing force, which induces a
hogging moment opposite to the service load deflection.
6. According to the LRFD method, the load factor for live load in the basic load
combination is:
A) 1.2
B) 1.6
C) 1.4
, D) 1.7
Rationale: In LRFD, the basic load combination 1.2D + 1.6L applies a factor
of 1.6 to live load to account for its variability and the lower probability of
simultaneous maximum live loads.
7. What is the primary purpose of shear reinforcement in a reinforced
concrete beam?
A) Increase flexural capacity
B) Prevent diagonal tension failure
C) Reduce deflection
D) Control cracking
Rationale: Shear reinforcement (stirrups) is designed to intercept diagonal
tension cracks and carry the tensile stresses that develop along inclined
planes, thereby preventing sudden shear failures.
8. The seismic base shear formula V = Cs W uses Cs, which is the:
A) Seismic response coefficient
B) Seismic coefficient
C) Site coefficient
D) Damping coefficient
Rationale: Cs is the seismic response coefficient that accounts for the
structure's period, site class, and seismic design category, representing the
fraction of the total weight that acts as base shear.
9. A structural weld with complete joint penetration is classified as:
A) Fillet weld
B) Groove weld
C) Plug weld
D) Slot weld
Rationale: Complete joint penetration (CJP) welds are groove welds where
the weld metal fully penetrates through the thickness of the joint,
providing full strength transfer.
10.The neutral axis depth in a reinforced concrete beam under flexure is
determined by:
Practice Exam Questions And Correct
Answers (Verified Answers) Plus
Rationales 2026 Q&A | Instant
Download Pdf
1. What is the minimum specified compressive strength of concrete for
structural members exposed to freeze-thaw conditions according to ACI
318?
A) 3,000 psi
B) 4,000 psi
C) 5,000 psi
D) 6,000 psi
Rationale: ACI 318 requires a minimum of 4,000 psi for concrete exposed
to freeze-thaw conditions to ensure adequate durability and resistance to
cyclic freezing and thawing damage.
2. The effective length factor K for a column braced against sidesway and with
both ends fixed against rotation is:
A) 0.5
B) 0.65
C) 0.8
D) 1.0
Rationale: For a column with both ends fixed against rotation and braced
against sidesway, the theoretical K factor is 0.65, which accounts for
partial fixity at the connections.
,3. Which steel shape has the highest torsional constant for a given cross-
sectional area?
A) W-shape
B) S-shape
C) C-shape
D) HSS rectangular
Rationale: Hollow Structural Sections (HSS) have significantly higher
torsional constants than open sections like W, S, or C shapes because the
closed cross-section resists torsion through Saint-Venant torsion more
efficiently.
4. The overturning moment on a retaining wall is primarily resisted by:
A) Active earth pressure
B) Weight of the wall and backfill
C) Passive earth pressure
D) Water pressure
Rationale: The resisting moment against overturning is generated
primarily by the weight of the wall itself and the soil backfill above the
heel, creating a stabilizing moment about the toe.
5. In prestressed concrete, the term "camber" refers to:
A) Downward deflection under service load
B) Upward deflection due to prestressing force
C) Lateral displacement during stressing
D) Creep deformation over time
Rationale: Camber is the upward deflection of a prestressed concrete
member caused by the eccentric prestressing force, which induces a
hogging moment opposite to the service load deflection.
6. According to the LRFD method, the load factor for live load in the basic load
combination is:
A) 1.2
B) 1.6
C) 1.4
, D) 1.7
Rationale: In LRFD, the basic load combination 1.2D + 1.6L applies a factor
of 1.6 to live load to account for its variability and the lower probability of
simultaneous maximum live loads.
7. What is the primary purpose of shear reinforcement in a reinforced
concrete beam?
A) Increase flexural capacity
B) Prevent diagonal tension failure
C) Reduce deflection
D) Control cracking
Rationale: Shear reinforcement (stirrups) is designed to intercept diagonal
tension cracks and carry the tensile stresses that develop along inclined
planes, thereby preventing sudden shear failures.
8. The seismic base shear formula V = Cs W uses Cs, which is the:
A) Seismic response coefficient
B) Seismic coefficient
C) Site coefficient
D) Damping coefficient
Rationale: Cs is the seismic response coefficient that accounts for the
structure's period, site class, and seismic design category, representing the
fraction of the total weight that acts as base shear.
9. A structural weld with complete joint penetration is classified as:
A) Fillet weld
B) Groove weld
C) Plug weld
D) Slot weld
Rationale: Complete joint penetration (CJP) welds are groove welds where
the weld metal fully penetrates through the thickness of the joint,
providing full strength transfer.
10.The neutral axis depth in a reinforced concrete beam under flexure is
determined by:
