Q. For a simply supported beam with a point load at one end, what is the reaction force at the support opposite to the load?
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Solution
The reaction force at the support opposite to the point load (W) is equal to the load itself, as the beam is in static equilibrium.
Correct Answer:
A
— W
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Q. In a statically indeterminate structure, which method is often used to analyze the internal forces?
A.
Method of Joints
B.
Virtual Work Method
C.
Stiffness Method
D.
Method of Sections
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Solution
The Stiffness Method is often used to analyze statically indeterminate structures by relating displacements to forces.
Correct Answer:
C
— Stiffness Method
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Q. In a truss, if a member is in tension, what can be inferred about the forces acting on it?
A.
It is being pulled apart
B.
It is being compressed
C.
It has zero force
D.
It is not connected
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Solution
If a member in a truss is in tension, it is being pulled apart by the forces acting on it.
Correct Answer:
A
— It is being pulled apart
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Q. What is the effect of increasing the length of a simply supported beam on its deflection under a uniform load?
A.
Increases deflection
B.
Decreases deflection
C.
No effect
D.
Depends on material
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Solution
Increasing the length of a simply supported beam under a uniform load increases its deflection, as deflection is proportional to the cube of the length (L^3).
Correct Answer:
A
— Increases deflection
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Q. What is the primary purpose of using a moment distribution method in structural analysis?
A.
To find deflections
B.
To analyze indeterminate structures
C.
To calculate shear forces
D.
To determine support reactions
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Solution
The moment distribution method is primarily used to analyze indeterminate structures by distributing moments to achieve equilibrium.
Correct Answer:
B
— To analyze indeterminate structures
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