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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.
Explain Template Jig? 1) Template jig is the simplest type of jig, employed for accuracy than speed. 2) This jig fits over, on, or, into the work and is not generally clampe
Durability requirements for Concrete Even though the alkaline environment of concrete protects steel, carbonation of hydrated cement may decrease the effective protection. The
1. Draw the projections of a line AB that is 50 mm long and is parallel to both the HP and the VP. The line is 40 mm above the HP and 25 mm in front of the VP. 2. A line AB, 50 mm
Strength: The strength of aggregates is determined from one of the three tests : Aggregate Impact Test In which the aggregates in a mould are subjected to impact caus
DISTOMIT
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Q. Necessity of air voids in bituminous pavement? If the presence of air voids is too high, it results in an increase of permeability of bituminous pavement. This enables the f
Asolid circular shaft of 25 cm diameter is to be replaced by a hollow shaft .The ratio of external to internal diameters being 2to1.Find the size of the hollow shaft if the maximum
history and development of indian road and planning
TYPES OF OBSTACLES IN CHAIN SURVEYING
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