Railway RRB / NTPC - MCQ Practice Questions

Ballast (crushed stone/gravel) distributes the load from sleepers and rails, provides proper drainage, and maintains correct track alignment and gauge.

Central Railway operates one of the longest route networks among Indian Railway zones, covering major parts of Central India.

Signal aspects (green, yellow, red) communicate specific instructions to train drivers regarding speed and movement permissions at that location.

Expansion joints accommodate the linear expansion of rails in hot weather and contraction in cold weather, preventing rail buckling or breaking.