Structural Analysis MCQ Questions & Answers

61

For a single point load W moving on a symmetrical three hinged parabolic arch of span L, the maximum sagging moment occurs at a distance x from ends. The value of x is

A) 0.211 L B) 0.25 L C) 0.234 L D) 0.5 L

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Answer & Solution

Answer: Option A

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62

If in a rigid-jointed space frame, (6m + r) < 6j, then the frame is

A) Unstable B) Stable and statically determinate C) Stable and statically indeterminate D) None of the above

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Answer & Solution

Answer: Option A

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63

Pick up the correct statement applicable to cased columns.

A) Single I-beam or channels back with or without flange plates may be used B) The overall dimensions of the steel section do not exceed 750 × 450 mm over plate if used C) The column is unpainted and is solidly encased in ordinary dense concrete with 10 mm aggregates having a minimum of cube strength 160 kg/cm² at 28 days D) The surface and edges of the steel column should be provided a concrete cover not less than 50 mm E) All the above

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Answer & Solution

Answer: Option E

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64

In column analogy method, the area of an analogous column for a fixed beam of span L and flexural rigidity E$$I$$ is taken as

A) $$\frac{{\text{L}}}{{{\text{E}}I}}$$ B) $$\frac{{\text{L}}}{{2{\text{E}}I}}$$ C) $$\frac{{\text{L}}}{{3{\text{E}}I}}$$ D) $$\frac{{\text{L}}}{{4{\text{E}}I}}$$

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Answer & Solution

Answer: Option A

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65

For under water concreting.

A) At least 10 percent more cement is required as compared to dry conditions B) The volume of coarse aggregates shall not be less than one and half times and not more than twice that of fine aggregate C) De-watering by pumping is not done or until 24 hours thereafter D) All the above

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Answer & Solution

Answer: Option D

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66

In moment distribution method, the sum of distribution factors of all the members meeting at any joint is always

A) 0 B) Less than 1 C) 1 D) Greater than 1

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Answer & Solution

Answer: Option C

Solution:

In the moment distribution method, the sum of distribution factors of all the members meeting at any joint is always 1.

Distribution factors are calculated for each member connected to a joint, based on their stiffness relative to the stiffness of all other members connected to the same joint.

The distribution factors determine how the unbalanced moments at the joint will be distributed among the connected members.

Since the total moment at the joint is distributed among the connected members, the sum of all distribution factors must equal 1, ensuring that the entire moment is accounted for.

Structural Analysis MCQ Questions & Answers | Civil Engineering