Consider the beam section shown in the figure, with $y$ indicating the depth of neutral axis (NA). The section is only subjected to an increasing bending moment. It is given that $y=18.75 \mathrm{~mm}$, when the section has not yielded at the top and bottom fibres. Further, $y$ decreases to 5 mm , when the entire section has yielded. The shape factor of the section is ________ (rounded off to 2 decimal places).

All the vehicles that come during a particular peak hour come during a 10-minute period within this hour. The 15 -minute peak hour factor for this peak hour is

The maximum degree of the curve that can be used for railways in a mountainous region is

Road A and Road B are joined by a circular horizontal curve of radius 200 m as shown in the figure. Road $A$ and Road $B$ are tangential to the curve at the points $C$ and $D$, respectively. Had the curve not been there, straight roads $A$ and $B$ would have met at the point $E$. The distance from $C$ to $E$ is 92 m . The value of angle $\theta$ (in degrees) is

__________ (rounded off to 1 decimal place).

Note: The value of angle .. is to be calculated only from the consideration of Euclidean geometry and the data given in the problem.