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Q. Explain about Best hydraulic section?
The best hydraulic section of an open channel is considered by provision of maximum discharge with a given cross sectional area. Channels with circular shape is the best hydraulic sections whereas a rectangular channel with channel width being equal to two times the height of channel is the best hydraulic section amongst all rectangular sections. Actually the choice of best hydraulic section also possesses other benefits than hydraulic performance. For example for a given discharge rate use of best hydraulic section could assure the least cross sectional area of the channels. Considerable savings could be made from the reduction in the amount of excavation and from the useof less channel linings.
State an expression for 'zero air-void line' and illustrate the line for a specific gravity of 2.65. What are the various factors that affect the compaction of soil in the field
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What is fore bearing and back bearing?how it measure?
Two load tests were performed at a site-one with a 50 cm square plate and the other with a 75 cm square plate. For a settlement of 15 mm, the loads were recorded as 50 kN and 90 kN
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Q. Explain Census of Traffic at Level Crossings? Periodical census of traffic at all level crossings, unmanned/manned should be taken at least once in five years to review the
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