Which one of the following options provides the correct match of the terms listed in Column-1 and Column-2?

Column-1	Column-2
P: Horton equation	IV: Infiltration
Q: Muskingum method	V: Channel routing
R: Penman method	III: Evapotranspiration
	I: Precipitation
	II: Flood frequency

A catchment may be idealized as a circle of radius 30 km. There are five rain gauges, one at the center of the catchment and four on the boundary (equi-spaced), as shown in the figure (not to scale).

The annual rainfall recorded at these gauges in a particular year are given below.

$$ \begin{array}{|l|l|l|l|l|l|} \hline \text { Gauge } & \mathrm{G}_1 & \mathrm{G}_2 & \mathrm{G}_3 & \mathrm{G}_4 & \mathrm{G}_5 \\ \hline \text { Rainfall }(\mathrm{mm}) & 910 & 930 & 925 & 895 & 905 \\ \hline \end{array} $$

Using the Thiessen polygon method, what is the average rainfall (in mm, rounded off to two decimal places) over the catchment in that year? ________

Identify the cross-drainage work in the figure.

With regard to the shear design of RCC beams, which of the following statements is/are TRUE?