Structural Engineer Licensing Exam
Practice Questions And Correct Answers
(Verified Answers) Plus Rationale 2026
Q&A| Instant Download Pdf
1. A reinforced concrete beam is designed using the strength design
method. Which load combination from the commonly adopted design
standards generally produces the maximum factored bending moment
for gravity loading?
A. D + L
B. 1.2D + 1.6L + 0.5(Lr or S or R)
C. 0.9D + W
D. 1.0D + E
B. 1.2D + 1.6L + 0.5(Lr or S or R)
Rationale: The strength design load combination including 1.2 dead
load and 1.6 live load generally governs gravity loading because it
accounts for uncertainties in load estimation and material strength
while providing an adequate safety margin.
2. Which structural analysis method directly satisfies equilibrium at joints
and compatibility throughout the structure?
A. Method of joints
B. Plastic analysis
C. Matrix stiffness method
, D. Approximate portal method
C. Matrix stiffness method
Rationale: The matrix stiffness method simultaneously satisfies
equilibrium, compatibility, and constitutive relationships, making it
the foundation of modern structural analysis software.
3. A simply supported beam carrying a uniformly distributed load has its
maximum bending moment located at:
A. One-quarter span
B. One-third span
C. Midspan
D. Support
C. Midspan
Rationale: For a simply supported beam subjected to a uniformly
distributed load over the entire span, the bending moment diagram
is parabolic with its maximum occurring at the midpoint.
4. Which property primarily governs the buckling resistance of a
compression member?
A. Yield strength only
B. Radius of gyration
C. Ultimate tensile strength
D. Poisson's ratio
B. Radius of gyration
Rationale: Buckling resistance depends heavily on slenderness ratio,
which includes the radius of gyration. Larger radii of gyration reduce
slenderness and improve buckling capacity.
5. The modulus of elasticity of concrete generally:
A. Decreases as compressive strength increases
B. Is independent of strength
C. Increases with compressive strength
, D. Depends only on aggregate size
C. Increases with compressive strength
Rationale: Higher-strength concrete typically has a higher modulus of
elasticity because it is stiffer and experiences less strain under the
same stress.
6. In steel design, a compact section is one that:
A. Buckles locally before yielding
B. Cannot develop its plastic moment
C. Can develop and sustain its plastic moment before local buckling
D. Has no residual stresses
C. Can develop and sustain its plastic moment before local buckling
Rationale: Compact sections possess sufficient plate thickness to
prevent premature local buckling, allowing full plastic capacity to
develop.
7. Which type of foundation is most suitable where competent bearing
strata are located at great depth?
A. Strip footing
B. Combined footing
C. Raft foundation
D. Pile foundation
D. Pile foundation
Rationale: Piles transfer structural loads through weak upper soils to
stronger deeper layers or by skin friction, making them appropriate
for deep competent strata.
8. Shear walls primarily resist:
A. Gravity loads only
B. Lateral loads
C. Temperature effects
D. Settlement
, B. Lateral loads
Rationale: Shear walls provide substantial in-plane stiffness and
strength, making them effective in resisting wind and earthquake
forces.
9. The neutral axis in a reinforced concrete beam under flexure is located
where:
A. Tensile stress is maximum
B. Compressive stress is maximum
C. Stress is zero
D. Strain is maximum
C. Stress is zero
Rationale: The neutral axis separates the compression and tension
regions, and both stress and strain pass through zero at this location
under linear elastic assumptions.
10. The principal advantage of prestressed concrete is:
A. Reduced dead load only
B. Elimination or reduction of tensile cracking
C. Increased density
D. Lower cement content
B. Elimination or reduction of tensile cracking
Rationale: Prestressing introduces compressive stresses that
counteract tensile stresses from service loads, significantly reducing
cracking and deflection.
11. The primary function of stirrups in reinforced concrete beams is
to resist:
A. Axial compression
B. Shear forces
C. Torsion only
D. Temperature stresses only
Practice Questions And Correct Answers
(Verified Answers) Plus Rationale 2026
Q&A| Instant Download Pdf
1. A reinforced concrete beam is designed using the strength design
method. Which load combination from the commonly adopted design
standards generally produces the maximum factored bending moment
for gravity loading?
A. D + L
B. 1.2D + 1.6L + 0.5(Lr or S or R)
C. 0.9D + W
D. 1.0D + E
B. 1.2D + 1.6L + 0.5(Lr or S or R)
Rationale: The strength design load combination including 1.2 dead
load and 1.6 live load generally governs gravity loading because it
accounts for uncertainties in load estimation and material strength
while providing an adequate safety margin.
2. Which structural analysis method directly satisfies equilibrium at joints
and compatibility throughout the structure?
A. Method of joints
B. Plastic analysis
C. Matrix stiffness method
, D. Approximate portal method
C. Matrix stiffness method
Rationale: The matrix stiffness method simultaneously satisfies
equilibrium, compatibility, and constitutive relationships, making it
the foundation of modern structural analysis software.
3. A simply supported beam carrying a uniformly distributed load has its
maximum bending moment located at:
A. One-quarter span
B. One-third span
C. Midspan
D. Support
C. Midspan
Rationale: For a simply supported beam subjected to a uniformly
distributed load over the entire span, the bending moment diagram
is parabolic with its maximum occurring at the midpoint.
4. Which property primarily governs the buckling resistance of a
compression member?
A. Yield strength only
B. Radius of gyration
C. Ultimate tensile strength
D. Poisson's ratio
B. Radius of gyration
Rationale: Buckling resistance depends heavily on slenderness ratio,
which includes the radius of gyration. Larger radii of gyration reduce
slenderness and improve buckling capacity.
5. The modulus of elasticity of concrete generally:
A. Decreases as compressive strength increases
B. Is independent of strength
C. Increases with compressive strength
, D. Depends only on aggregate size
C. Increases with compressive strength
Rationale: Higher-strength concrete typically has a higher modulus of
elasticity because it is stiffer and experiences less strain under the
same stress.
6. In steel design, a compact section is one that:
A. Buckles locally before yielding
B. Cannot develop its plastic moment
C. Can develop and sustain its plastic moment before local buckling
D. Has no residual stresses
C. Can develop and sustain its plastic moment before local buckling
Rationale: Compact sections possess sufficient plate thickness to
prevent premature local buckling, allowing full plastic capacity to
develop.
7. Which type of foundation is most suitable where competent bearing
strata are located at great depth?
A. Strip footing
B. Combined footing
C. Raft foundation
D. Pile foundation
D. Pile foundation
Rationale: Piles transfer structural loads through weak upper soils to
stronger deeper layers or by skin friction, making them appropriate
for deep competent strata.
8. Shear walls primarily resist:
A. Gravity loads only
B. Lateral loads
C. Temperature effects
D. Settlement
, B. Lateral loads
Rationale: Shear walls provide substantial in-plane stiffness and
strength, making them effective in resisting wind and earthquake
forces.
9. The neutral axis in a reinforced concrete beam under flexure is located
where:
A. Tensile stress is maximum
B. Compressive stress is maximum
C. Stress is zero
D. Strain is maximum
C. Stress is zero
Rationale: The neutral axis separates the compression and tension
regions, and both stress and strain pass through zero at this location
under linear elastic assumptions.
10. The principal advantage of prestressed concrete is:
A. Reduced dead load only
B. Elimination or reduction of tensile cracking
C. Increased density
D. Lower cement content
B. Elimination or reduction of tensile cracking
Rationale: Prestressing introduces compressive stresses that
counteract tensile stresses from service loads, significantly reducing
cracking and deflection.
11. The primary function of stirrups in reinforced concrete beams is
to resist:
A. Axial compression
B. Shear forces
C. Torsion only
D. Temperature stresses only
