Q. In a frame structure, which method is typically used to analyze the internal forces?
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A.
Method of Sections
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B.
Virtual Work Method
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C.
Stiffness Method
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D.
Method of Joints
Solution
The Stiffness Method is typically used to analyze internal forces in frame structures, accounting for deformations.
Correct Answer:
C
— Stiffness Method
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Q. What is the formula for the moment of inertia (I) of a rectangular beam section?
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A.
bh^3/12
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B.
bh^2/12
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C.
b^3h/12
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D.
b^2h/12
Solution
The moment of inertia (I) for a rectangular beam section is given by I = bh^3/12, where b is the base and h is the height.
Correct Answer:
A
— bh^3/12
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Q. What is the relationship between the stiffness (k) of a beam and its moment of inertia (I)?
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A.
k ∝ I
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B.
k ∝ 1/I
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C.
k ∝ I^2
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D.
k ∝ √I
Solution
The stiffness (k) of a beam is directly proportional to its moment of inertia (I), meaning k ∝ I.
Correct Answer:
A
— k ∝ I
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