Design of Steel Structure
For a compression member with double angle section, which of the following section will give larger value of minimum radius of gyration?

unqual legged angles with long legs back to back
equal angles back to back
both (b) or (c)
unequal legged angles with short legs back to back

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Design of Steel Structure
The bracing between two columns of a steel tank will be designed to resist

horizontal, shear due to wind or earthquake + 2.5% of column loads
column loads + full horizontal shear due to wind or earthquake
column loads + 2.5% of horizontal shear due to wind or earthquake
horizontal shear due to wind or earthquake only

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