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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.
in plane table surveying which activity is done first whether centering or levelling?
Q. What is Chamfering of rail? Chamfering of rail holes has been done for the life of rail hole is increased and chances of the rail hole developing any crack is eliminated.
What is linear waterway?
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What are borrow pits?
Q. Explain in details the various operations involved in Through Packing - conventional Maintenance by beater packing. Explain the various operations as per the Permanent Way
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