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Q. Explain Hot weather Patrolling ?
Hot weather Patrolling is done for LWR and CWR tracks when the rail temperature reaches td + 200 C and above and td + 140 C for Central Railway.
Security Patrolling -
Security Patrolling of the specified section is done on special occasions link civil disturbances strikes etc with the object of protect trains against any sabotage etc like tampering of track placing of obstructions on the line etc.
Monsoon Patrolling -
Monsoon night Patrolling is done by Patrolmen in a programmed way on specified sections of the railway track to detect damage done by floods such as breaches settlements.
Q. Explain Remote sensing technique? Remote sensing is a science or an art of obtaining the information about an object, area or a phenomenon through analysis of data acquired
Estimate the ground level NO concentration: a. Directly downwind at a distance of 2 km b. At the point downwind where NO is maximum c. At a point located 2 km downwind and 0.1 km
The stresses at failure on the failure plane in a cohesionless soil mass were: Shear stress = 4 kN/m 2 ; normal stress = 10 kN/m 2 . Verify the resultant stress on the failure plan
Pre-tensioning systems In the previous unit we have seen different steps in a pretensioning operation. Tendon wires or strands (formed as a rope type arrangement made of sever
a pilot entering a bay on course
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Loss of prestress due to elastic shortening At the transfer of prestress, tensile stresses of tendons are transferred to concretc in the form of compressive stresses. Due to t
what are the uses of retaining wall?!
Q. What do you mean by M A S Accounts? This stands for material at site account. This is a suspense head of account that is maintained to watch actual consumption of materials
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