In a pre-stressed concrete beam section shown in the figure, the net loss is $$10\% $$ and the final prestressing force applied at $$X$$ is $$750$$ $$kN.$$ The initial fiber stresses (in $$N/m{m^2}$$ ) at the top and bottom of the beam were:

A column of size $$450\,mm \times 600\,mm$$ has unsupported length of $$3.0$$ $$m$$ and is braced against side sway in both directions. According to $$IS$$ $$456: 2000,$$ the minimum eccentricities (in $$mm$$) with respect to major and minor principal axes are:

According to the concept of Limit State Design as per IS 456: 2000, the probability of failure of a structure is __________.

A steel member ‘M’ has reversal of stress due to live loads, whereas another member ‘N’ has reversal of stress due to wind load. As per $$IS$$ $$800: 2007,$$ the maximum slenderness ratio permitted is:
$$\left( 1 \right)\,\,\,\,\,$$ Lesser for member $$‘M’$$ than that of member $$‘N’$$
$$\left( 2 \right)\,\,\,\,\,$$ More for member $$‘M’$$ than for member $$‘N’$$
$$\left( 3 \right)\,\,\,\,\,$$ Same for both the members
$$\left( 4 \right)\,\,\,\,\,$$ Not specified in the Code