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Q. Explain the process of Directed Track Maintenance?
DTM is a method to maintain the track is directed every day and not as a prescribed routine. DTM essentially consists of need based maintenance rather than routine periodical maintenance. Under this system track maintenance is done by proper identification of defects of the track geometry rectification of these defects under close supervision by attending the track at these isolated locations and there by maintaining the track to predetermined standards.
Q. Explain about Noise absorptive materials? The fundamental mechanism of noise absorptive material is to change the acoustic energy into heat energy. Amount of heat produced i
Discuss about the post-tensioning systems In most of post-tensioning systems, when the cable is tensioned and the jack is released to transfer prestress to concrete, the fricti
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Define the Spalling - underwater inspection of bridge? A spall is a roughly circular or oval depression in the concrete. Corroding reinforcement can cause spalls and reinforcin
Ask question #Minimum 100E. The regulations and specifications that followed for compaction works for earth dam in Oman words accepted#
Define Abrasion - underwater inspection of bridge? Deterioration of substructures by abrasion is caused by wave action, the velocity of the currents and the action of suspended
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1. The topography of a local valley is shown. The horizontal distance between point P and Q is 11,456-ft. The percent grade (%) of line P-Q . 2. Based on the info
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