2. A sight is taken with an engineer’s level at rod held 80 m away and the reading was observed to be 2.81. The bubble is then leveled through five spaces on the level tube and the reading increased to 2.874 m. What is the radius of curvature of the level tube if each division is 0.6 mm?

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Highway Drainage

Highway drainage is the process of extracting and regulating the excess surface water on the pavement by giving the desired slope. The construction of a highway drain helps to divert the water present on the surface, and sub-grade by the means of slope. Highway drainage systems are a necessary part of smooth functioning of traffic, since the highway drainage systems provide proper disposal of unwanted substances from the highways.