[Solved] Track modulus is defined as:

Q.	Track modulus is defined as:
A.	load/unit length of sleeper
B.	load/unit length of sleeper to produce depression in rail
C.	load/unit length of rail to produce depression in sleeper
D.	load/unit length of rail to produce unit depression/deflection in track
Answer» D. load/unit length of rail to produce unit depression/deflection in track
Explanation: the track modulus defines the stiffness of track or its load bearing capacity. it is based on the elastic theory. when a load causes a deflection on the top of the rail, the deformation comes on the sleeper, below the rail.

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