GAT Subject Engineering MCQs

Continuity expresses conservation of mass.
For incompressible flow, area times velocity remains constant without lateral flow.

Bearing capacity relates to the soil's resistance to foundation loading.
Design also considers settlement, not shear failure alone.

Rigid pavements use concrete slab stiffness to distribute wheel loads.
Flexible pavements distribute load through layered materials.

Consolidation is important in saturated fine-grained soils such as clay.
Load increases pore pressure and water gradually drains out.

The subgrade is the foundation of the pavement layers.
Its strength and drainage strongly affect pavement performance.

The SPT gives an N-value related to soil density or consistency.
It also provides disturbed samples for identification.

Compaction increases dry density and strength while reducing compressibility.
It is achieved using rollers, rammers, or vibratory equipment.

The Proctor test establishes the moisture-density relationship for soil.
Its results guide field compaction control.

Permeability depends on particle size, void ratio, and fluid properties.
Sands are generally more permeable than clays.

Retaining walls hold back soil at different elevations.
They must be checked for sliding, overturning, and bearing failure.

Wall movement away from soil allows the active condition to develop.
Active pressure is lower than at-rest pressure.

A theodolite measures horizontal and vertical angles.
Modern total stations combine angle measurement with electronic distance measurement.