FINAL EXAM - PART 2 MODULE 7- BEAM DESIGN FOR KIRBY
HEBERT Q AND A LOUISIANA STATE UNIVERSITY - (60
QUESTIONS) UP-TO-DATE ACTUAL EXAM QUESTIONS AND 100%
ACCURATE SOLUTIONS | VERIFIED ANSWERS - INSTANT PDF
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Examiner/Administrator: Louisiana State University (LSU)
CANDIDATE INFORMATION
Name: ____________________________
Candidate ID: _____________________
Date: ____________________________
Examination Centre: _______________
INSTRUCTIONS TO CANDIDATES
You are required to complete all questions in this section of the Structural
Principles and Practices Final Examination, focusing on advanced beam
design concepts aligned with Module 7. The examination evaluates your
ability to apply structural theory, interpret loading conditions, and perform
design checks in accordance with accepted engineering standards. You are
expected to demonstrate accuracy, analytical reasoning, and appropriate use
of design principles.
Time Allowed: 120 minutes
Total Questions: 60 (This section includes Questions 1–30)
•
Answer all questions.
• Select the most appropriate answer for each question.
• Calculators are permitted unless otherwise stated.
• Use consistent units throughout calculations.
CORE COMPETENCY AREAS
• Flexural Design of Beams
• Shear and Moment Analysis
, • Load Combinations and Structural Behavior
• Material Strength and Safety Factors
• Deflection and Serviceability Criteria
• Reinforced Concrete and Steel Beam Design Principles
INTRODUCTION
This assessment is designed to measure your understanding of beam design
principles as taught in CM 2500/2501 coursework. It emphasizes real-world
application of structural engineering concepts, including load analysis,
bending stress evaluation, and compliance with design codes. Candidates
must interpret engineering scenarios and select optimal solutions based on
safety, efficiency, and structural integrity.
DISCLAIMER
This is an original simulation exam created for educational purposes. It is not
affiliated with or derived from any official LSU examination materials.
Q1. A simply supported beam spans 8 m and carries a uniformly distributed
load of 10 kN/m. What is the maximum bending moment?
A. 40 kN·m
B. 80 kN·m
C. 160 kN·m
D. 320 kN·m
Correct Answer: B. 80 kN·m
Explanation: For a simply supported beam with UDL, M = wL²/8 =
(10×8²)/8 = 80 kN·m. A and C are incorrect due to misapplication of formulas;
D is excessively large.
Q2. A beam fails due to excessive deflection. Which parameter most directly
influences deflection?
A. Yield strength
B. Modulus of elasticity
C. Density
D. Poisson’s ratio
,Correct Answer: B. Modulus of elasticity
Explanation: Deflection depends on stiffness (EI). E (modulus) is critical.
Yield strength relates to failure, not deformation; density and Poisson’s ratio
are less relevant.
Q3. For a rectangular beam section, increasing depth has what effect on bending
capacity?
A. Linear increase
B. No change
C. Quadratic increase
D. Decrease
Correct Answer: C. Quadratic increase
Explanation: Moment capacity ∝ bd². Depth squared increases strength
significantly. Others underestimate or misrepresent relationship.
Q4. Which load type produces the highest bending moment at midspan?
A. Point load at support
B. Uniform load
C. Point load at midspan
D. Triangular load
Correct Answer: C. Point load at midspan
Explanation: Concentrated load at center creates maximum bending. Others
distribute load or place it inefficiently.
Q5. What is the primary purpose of shear reinforcement in beams?
A. Increase flexural strength
B. Prevent buckling
C. Resist shear forces
D. Reduce weight
Correct Answer: C. Resist shear forces
Explanation: Shear reinforcement (stirrups) prevents diagonal cracking.
Flexural strength is handled by longitudinal steel.
Q6. A beam experiences torsion. What additional reinforcement is required?
A. None
, B. Only longitudinal
C. Closed stirrups
D. Prestressing
Correct Answer: C. Closed stirrups
Explanation: Torsion requires closed stirrups to resist twisting. Others are
insufficient.
Q7. The neutral axis in a beam under bending is where:
A. Stress is maximum
B. Strain is zero
C. Shear is zero
D. Moment is zero
Correct Answer: B. Strain is zero
Explanation: Neutral axis has zero strain and stress. Other options
misinterpret structural behavior.
Q8. Which factor reduces beam deflection most effectively?
A. Increase span
B. Increase load
C. Increase moment of inertia
D. Reduce material strength
Correct Answer: C. Increase moment of inertia
Explanation: Higher I increases stiffness. Others worsen deflection.
Q9. What is the unit of bending stress?
A. N
B. N/m
C. N/m²
D. N·m
Correct Answer: C. N/m²
Explanation: Stress is force per area. Others represent different physical
quantities.
Q10. A cantilever beam has maximum moment at:
A. Free end