Structural Analysis Questions and Answers – Deflection Diagrams and the Elastic Curve

This set of Structural Analysis Multiple Choice Questions & Answers (MCQs) focuses on “Deflection Diagrams and the Elastic Curve”.

1. When a material returns to its undeformed original position after removal of load, then this behavior is called linear elastic material response.
State whether the above statement is true or false.
a) True
b) False
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2. Which of the following causes greatest deflection for beams?
a) Internal axial force
b) Internal bending
c) Both causes equal deflections
d) External loads
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3. In a truss, maximum deflection is caused by internal bending.
State whether the above statement is true or false
a) True
b) False
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4. In deflection diagrams, which of the following can’t have zero deflection in vertical direction?
a) Pin support
b) Roller support
c) Fixed support
d) Hinge
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5. In deflection diagrams, which of the following can have zero angular deflection?
a) Pin support
b) Roller support
c) Fixed support
d) Hinge
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6. What is the relation between angular deflections between two legs connected by a fixed-connected joint?
a) They are unequal
b) They are equal
c) Can’t say
d) They don’t show angular deflection
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7. What is the relation between angular deflections between two legs connected by a pin-connected joint?
a) They are unequal
b) They are equal
c) Can’t say
d) They don’t show angular deflection
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8. A positive moment by standard sign convention would bend a horizontal beam:-
a) Concave upward
b) Concave downward
c) Convex upward
d) Can’t say
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