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Cross Drainage Works:
Culverts
A large number of culverts are needed for taking care of the streams crossing the railway lines. The culverts can be one of the following types:
(a) Masonry arch
(b) Brick arch
(c) RCC slab
(d) RCC box
(e) RCC pipes
Bridges
Bridges are provided across rivers crossing the railway line. The types of bridges used are:
(a) RCC slab
(b) RCC T-beam and slab
(c) Pre-stressed Concrete beam
(d) Steel plate girders
(e) Steel truss girders (for long spans)
The foundations are either open foundations or well foundations (for long spans). The piers and abutments are constructed in masonry, mass concrete or RCC.
The waterway for the bridges is fixed carefully after calculating the maximum possible discharge. Adequate clearance is provided over the highest flood level upto the bearings to take care of floating trees.
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Transformation Hardening The main features of the laser as a heat source for transformation hardening are: (A) Clean energy source. (B) Energy is localised: no heat spillage.
Kennedy’s Theorem: According to this theorem the relative instantaneous centres on whichever three bodies that contain motion relative to each other are collinear. Higher Pa
Write an essay on air, water and soil-based heat pumps. Discuss the advantages and the disadvantages of each system. For each system identify the conditions under which that system
How a governor works? I mean how it''s regulate the speed of for example electricity generators?
How can punching shear failure are characterised in bearing capacity? Punching Shear Failure This mode of failure is characterised by large deformations beneath the footing
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(a) Differentiate between carnot Heat pump and carnot Heat engine. What is the basic cycle for a carnot Heat pump ? Explain it. (b) A reversible heat engine delivers 0.6 K at po
Resultant of force system: Resultant is single force that produces the same effect as produced by the number of forces jointly in the system. In equilibrium magnitude of resul
wire-frame entities-representing ellipse and parabolas
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