Correct Answer - Option 5 : 100 mm
Concept:
The actual cant provided on a railway track is based on the average speed of trains. However, in case of high speed trains cant requirement will be more that the actual value of cant provided so that train will be forced to move on a lower value of cant then maximum cant is required for high speed train. This deficiency in cant for high speed trains is called cant deficiency.
The maximum permissible limit of cant deficiency is given below in tabulated form different type of railway gauges:
|
Type of Gauge
|
Cant Deficiency in ‘cm’
|
|
Speed ≤ 100 km/hr
|
Speed > 100 km/hr
|
|
BG
|
7.6
|
10.0
|
|
MG
|
5.1
|
-
|
|
NG
|
3.8
|
-
|
It is clear from above that maximum cant deficiency permitted for BG track is 10 cm or 100 mm.
