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Define Rotation - Actions in POT Bearings?
POT bearings are associated with large rotations which are accommodated by the deformation of elastomeric pad. Large cyclic rotations can be very damaging to POT bearings due to abrasion and wear of the sealing rings and elastomeric pad. In fact, during rotation, the elastomeric pad compresses on one side and expands on the other, so the elastomer is in contact with the POT wall and slips against it. This causes elastomer abrasion and sometimes contributes to elastomer leakage. To mitigate this problem, silicon grease is generally used.
Q. Explain Hot weather Patrolling ? Hot weather Patrolling is done for LWR and CWR tracks when the rail temperature reaches td + 20 0 C and above and td + 14 0 C for Central
What is WBM road. How it is constructed?
given A,B,C,and D are four plotted points at 2 centimeter apart and their ground reduced levels are 57.5 meter 63.2 meter 68.2 meter and 59.2 respectively.it is required to draw co
To determine the specific gravity of fine aggregate (sand) by Pycnometer.
Types and components of pavement
WCB from included angle
Two pumping wells 1,000 m away fully penetrate the same confined aquifer. One of the wells pumps at a rate of 1,240 m3/day. The second well pumps at 850 m3/day. If the aquifer has
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Determine the term- Shrinkage of Concrete Shrinkage of concrete is primarily due to gradual loss of moisture which results in change in volume. The shrinkage of concrete depend
Define Underwater Inspection of steel or cast iron structures? Underwater Inspection of steel/cast iron structures may be carried out as under: i. Start the inspection at sp
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