Define Tunnel and Elevated Railway.
Question
Define Tunnel and Elevated Railway.
Solution
Sure! I can define both terms for you.
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Tunnel: A tunnel is an underground passage or structure that is typically created through excavation or by constructing a tube-like structure. It is used to provide a passage for vehicles, pedestrians, or utilities such as water, gas, or electricity. Tunnels are commonly used to connect two points that are separated by a natural barrier, such as a mountain or a body of water. They can be found in various forms, including road tunnels, railway tunnels, and utility tunnels.
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Elevated Railway: An elevated railway, also known as an elevated train or an overhead railway, is a type of railway system that is built on an elevated structure or viaduct. It is designed to run above the ground level, providing a means of transportation for passengers or goods. Elevated railways are commonly found in urban areas where space is limited, and they are used to alleviate traffic congestion on the streets below. These railways are typically supported by columns or pillars, allowing them to be elevated above the surrounding terrain. They can be found in various forms, including monorails, light rail systems, and metro systems.
Similar Questions
The cross-sectional view of a tunnel is shown on the axes below. The line [AB] representsa vertical wall located at the left side of the tunnel. The height, in metres, of the tunnel abovethe horizontal ground is modelled by y = -0.1 x 3 + 0.8 x 2 , 2 ≤ x ≤ 8 , relative to an origin O.yx2 4 6 8246A108EBCDOPoint A has coordinates (2 , 0), point B has coordinates (2 , 2.4), and point C hascoordinates (8 , 0).(a) (i) Find dy___dx .(ii) Hence find the maximum height of the tunnel. [6](b) Find the height of the tunnel when(i) x = 4 .(ii) x = 6 . [3](c) Use the trapezoidal rule, with three intervals, to estimate the cross-sectional area ofthe tunnel. [3](d) (i) Write down the integral which can be used to find the cross-sectional area ofthe tunnel.(ii) Hence find the cross-sectional area of the tunnel. [4]
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