A symmetrical trapezoidal canal is 100 km long. The bottom width is 10 m and the side slope is 1 Horizontal : 1 Vertical. The average flow depth in the canal is 2.5 m throughout the month of April. The measurement from a Class-A evaporimeter in the vicinity of the canal indicated an average evaporation rate of $0.5 \mathrm{~cm} /$ day in April.

The volume of water evaporated from the canal (in $\mathrm{m}^3$ ) in the month of April is close to __________ $\times 10^3$ (rounded off to 1 decimal place).

Consider a reinforced concrete beam section of 300 mm width and 700 mm depth. The beam is reinforced with the tension steel of $2000 \mathrm{~mm}^2$ area at an effective cover of 50 mm . Concrete in the tension zone is assumed to be cracked. Assume the modular ratio of 12 and Young's modulus of 200 GPa for steel. When the extreme fibre in the compression zone undergoes the strain of 0.0004 due to the applied bending moment, the stress in the steel (in MPa ) is _________ (rounded off to the nearest integer).

Consider the built-up column made of two l-sections as shown in the figure, with each batten plate bolted to a component l-section of the column through 6 black bolts. Each connection of the batten plate with the component section is to be designed for a longitudinal shear of 70 kN and moment of $10 \mathrm{kN} . \mathrm{m}$. The minimum bolt value required (in kN ) is __________ (rounded off to the nearest integer).