PSK Infrastructures Senior Highway Engineer Interview Questions and Answers

GSB stands for Granular Sub-Base, which is a layer of compacted material used in road construction.

• GSB is a layer of material placed between the subgrade and the base course of a road.

• It provides a stable foundation for the road and helps in distributing the load from the traffic.

• The material used in GSB can vary, but it is typically a mixture of crushed stone, gravel, and sand.

• GSB is compacted to achieve a high degree...read more

WMM stands for Wet Mix Macadam, which is a type of road construction material.

• WMM is a mixture of aggregates, water, and binding materials.

• It is used as a base or sub-base layer in road construction.

• WMM provides better strength and durability compared to conventional macadam.

• It is designed to withstand heavy traffic loads and adverse weather conditions.

• Examples of binding materials used in WMM include cement, lime, or