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Design of Steel Structures Multiple Choice Questions | MCQs | Quiz

Design of Steel Structures Interview Questions and Answers
Practice Design of Steel Structures questions and answers for interviews, campus placements, online tests, aptitude tests, quizzes and competitive exams.

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•   Steel Properties
•   Steel Types
•   Design Considerations
•   Limit State Method
•   Characteristic Loads
•   Earthquake Loads
•   Load Combinations
•   Analysis Assumptions
•   Riveted Connections
•   Bolted Connections - 1
•   Bolted Connections - 2
•   Bolted Connections - 3
•   Pin Connections
•   Simple Connections
•   Beam - Beam Connections
•   Beam & Column Splices
•   Welding Process
•   Welding Types & Properties
•   Weld Defects & Joint Types
•   Design Specifications
•   Welds Design
•   Tension Members & Types
•   Slenderness Ratio
•   Tension Members Behavior
•   Angles Under Tension
•   Lug Angles & Gusset Plate
•   Tension Members Design
•   Plastic Theory
•   Plastic Hinge
•   Plastic Collapse Load
•   Plastic Analysis Conditions
•   Plastic Collapse Theorem
•   Portal Frame Plastic Design
•   Plates Local Buckling
•   Sectional Classification
•   Possible Failure Modes
•   Compression Members
•   Sections Types
•   ↓ Compression Members ↓
•   Effective Length & Ratio
•   Slender Elastic Buckling
•   Lacings
•   Battens
•   Back - Back Connection
•   Members Design - 1
•   Members Design - 2
•   Beams Basics
•   Beam Types & Sections
•   Beams Lateral Stability
•   Lateral Torsional Buckling
•   Lateral Stability Factors
•   Real Beam Behavior
•   ↓ Design Strength ↓
•   Supported Beams - 1
•   Supported Beams - 2
•   Supported Beams - 3
•   Unsupported Beams - 1
•   Unsupported Beams - 2
•   Beams Shear Strength
•   Web Buckling & Crippling
•   Beams Deflection & Holes
•   Castellated Beams & Lintel
•   Purlins
•   Plate Girders
•   Flanges Proportioning
•   Shear Web Panel
•   Stiffeners
•   Gantry Girders

Best Reference Books

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Design of Steel Structures Questions and Answers – Theorem of Plastic Collapse & Methods of Plastic Analysis

Posted on January 3, 2018 by Manish

This set of Design of Steel Structures Multiple Choice Questions & Answers focuses on “Theorem of Plastic Collapse & Methods of Plastic Analysis”.

1. What is static theorem ?
a) load must be greater than collapse load
b) load must be less than collapse load
c) load must be not equal to collapse load
d) load cannot be related to collapse load
View Answer

Answer: b
Explanation: For a given frame and loading if there exists any distribution of bending moments throughout the frame which is both safe and statically admissible with set of load P, then value of load P must be less than or equal to collapse load.
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2. Which of the following is true about static theorem?
a) it represents upper limit to true ultimate load
b) it represents plastic load
c) it has minimum factor of safety
d) it satisfies equilibrium and yield conditions
View Answer

Answer: d
Explanation: The static method represents the lower limit to the true ultimate load and has maximum factor of safety. The theorem satisfies equilibrium and yield conditions.

3. Which of the following condition is true for kinematic theorem?
a) load must be greater than collapse load
b) load must be less than collapse load
c) load must be not equal to collapse load
d) load cannot be related to collapse load
View Answer

Answer: a
Explanation: For a given frame subjected to a set of loads P, the value of P which is found to correspond to any assumed mechanism, must be greater than or equal to the collapse load Pu.

4. Which of the following is true about kinematic theorem?
a) it represents lower limit to true ultimate load
b) it represents plastic load
c) it has small factor of safety
d) it satisfies equilibrium and yield conditions
View Answer

Answer: c
Explanation: Load computed on basis of this mechanism will always be greater than or at least equal to true ultimate load. Hence, kinematic method represents an upper limit to the true ultimate load and has a smaller factor of safety. This theorem satisfies equilibrium and continuity conditions.

5. Which of the following condition is true for uniqueness theorem?
a) load must be greater than collapse load
b) load must be less than collapse load
c) load must be equal to collapse load
d) load cannot be related to collapse load
View Answer

Answer: c
Explanation: For given frame and loading, if at least one safe and statically admissible bending moment distribution can be found, and if in this distribution bending moment is equal to fully plastic moment at sufficient cross sections to cause failure of frame as a mechanism due to rotation of plastic hinges, then corresponding load will be equal to collapse load.
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6. Load is called as correct collapse load when
a) static theorem is not satisfied
b) kinematic theorem is not satisfied
c) only static theorem is satisfied
d) both static and kinematic theorem are satisfied
View Answer

Answer: d
Explanation: Load that satisfies both static and kinematic theorem at the same time is called correct collapse load.

7. Which of the following is true about kinematic analysis?
a) virtual work equations are not used to determine collapse load
b) virtual work equations are used to determine collapse load
c) equilibrium condition is assumed
d) plasticity condition is assumed
View Answer

Answer: b
Explanation: In kinematic method, a mechanism is assumed and virtual work equations are used to determine the collapse load.

8. The number of independent mechanism is related to number of possible plastic hinge locations by ________
a) n = h * r
b) n = h / r
c) n = h + r
d) n = h – r
View Answer

Answer: d
Explanation: The number of independent mechanism (n) is related to number of possible plastic hinge locations (h) and number of degree of redundancy (r) of the frame by equation n = h-r.

9. In static method of analysis, moment at any section is _______ plastic moment capacity.
a) greater than
b) two times
c) less than
d) three times
View Answer

Answer: c
Explanation: In static method of analysis, an equilibrium moment diagram is obtained such that the moment at any section is less than or equal to the plastic moment capacity.

10. Which of the following relation between load factor, collapse load(Wc) and working load (W)
a) F = Wc / W
b) F = W / Wc
c) F = Wc W
d) F = Wc + W
View Answer

Answer: a
Explanation: Load factor is ratio of collapse load to working load. It is represented by, F = Wc / W.
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11. Which of the following is load factor for simply supported beam with central point load?
a) (fyfbc)v
b) (fbc/ fy)v
c) (fy/fbc)v
d) (fy + fbc)v
View Answer

Answer: c
Explanation: For a simply supported beam with central point load,
M = WL/4 = fbcZe, Mp = WcL/4 = fyvZe, where v is shape factor
F = Mp/M = Wc/W = (fy/fbc)v.

12. What is the value of load factor for I-section when fbc= 0.66fy and mean value of v is 0.14?
a) 1.727
b) 2.7
c) 1.56
d) 3.98
View Answer

Answer: a
Explanation: Load factor, F = (fy/fbc)v. F = (1/0.66) x 0.14 = 1.27.

Sanfoundry Global Education & Learning Series – Design of Steel Structures.

To practice all areas of Design of Steel Structures, here is complete set of 1000+ Multiple Choice Questions and Answers.

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« Design of Steel Structures Questions and Answers – Conditions of Plastic Analysis
Design of Steel Structures Questions and Answers – Plastic Design of Portal Frames, Effect of Axial and Shear force on Plastic Moment Capacity »
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Manish Bhojasia
Manish Bhojasia, a technology veteran with 20+ years @ Cisco & Wipro, is Founder and CTO at Sanfoundry. He is Linux Kernel Developer & SAN Architect and is passionate about competency developments in these areas. He lives in Bangalore and delivers focused training sessions to IT professionals in Linux Kernel, Linux Debugging, Linux Device Drivers, Linux Networking, Linux Storage, Advanced C Programming, SAN Storage Technologies, SCSI Internals & Storage Protocols such as iSCSI & Fiber Channel. Stay connected with him @ LinkedIn | Facebook | Twitter

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