Structural Analysis Questions and Answers – Statically Indeterminate Structures

This set of Structural Analysis Multiple Choice Questions & Answers (MCQs) focuses on “Statically Indeterminate Structures”.

1. Most of the real world structures are statically determinate.
State whether the above statement is true or false.
a) True
b) False
View Answer

Answer: b
Explanation: Most of the real world structures are statically indeterminate owing to added supports or member or general form.

2. All reinforced concrete buildings are most of times:-
a) Statically determinate
b) Statically indeterminate
c) Mixture
d) Unstable
View Answer

Answer: b
Explanation: This is because columns and beams are continuous in these cases over joints and supports.

3. in most cases, for a given loading maximum stress and deflection of an indeterminate structure are __________ than that of a determinate one.
a) Larger
b) Smaller
c) Larger for small load
d) Smaller for larger load
View Answer

Answer: b
Explanation: Indeterminate structure deflects lesser than a determinate one.
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4. Which structure will perform better during earthquake?
a) Statically determinate
b) Statically indeterminate
c) Both
d) Depends upon magnitude of earthquake
View Answer

Answer: b
Explanation: Indeterminate structure has a tendency to redistribute its load to its redundant supports in case of overloading.

5. There are two beams of equal length L and a load P is acting on centre of both beams. One of them is simply supported at both ends while the other one is fixed at both ends. Deflection of centre of simply supported beam will be __________ times that of defection of centre of fixed beam.
a) 1
b) 2
c) 3
d) 4
View Answer

Answer: d
Explanation: Maximum moment developed in simply supported beam will be twice that of fixed supported and hence, we can find deflections.
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6. Which type of structure would cost less in terms of materials?
a) Statically determinate
b) Statically indeterminate
c) Both will cost equally
d) Depends upon loading
View Answer

Answer: b
Explanation: Statically indeterminate would cost less as they can support a loading with thinner members and increased stability.

7. Which type of structure would cost less in terms of supports?
a) Statically determinate
b) Statically indeterminate
c) Both will cost equally
d) Depends upon loading
View Answer

Answer: a
Explanation: Supports and joints of indeterminate structures are costly compared to that of a determinate one.
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8. Differential settlement is problematic to which type of structure?
a) Statically determinate
b) Statically indeterminate
c) Both
d) Neither
View Answer

Answer: b
Explanation: It causes development of internal stress in statically indeterminate structures.

9. Fabrication errors don’t cause additional stresses in statically indeterminate structures.
State whether the above statement is true or false.
a) True
b) False
View Answer

Answer: b
Explanation: Fabrication errors do cause generation of additional stresses in statically indeterminate structures.
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10. If in the above problem in Q5, if load P is excessively increased in simply supported beam, then where would a hinge like point form?
a) At one of the ends
b) At both ends
c) At centre
d) At centre as well as both ends
View Answer

Answer: b
Explanation: On application of excessive load, a hinge/pin like point forms at the centre of beam.

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Manish Bhojasia - Founder & CTO at Sanfoundry
Manish Bhojasia, a technology veteran with 20+ years @ Cisco & Wipro, is Founder and CTO at Sanfoundry. He lives in Bangalore, and focuses on development of Linux Kernel, SAN Technologies, Advanced C, Data Structures & Alogrithms. Stay connected with him at LinkedIn.

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