Stone generally used for roadstone aggregate:

a) Sandstone.

b) Limestone.

c) Basalt.

d) Schist.

Excessive water can be instrumental in reducing shear strength and promote movement of rock and sediment downslope under the pull of gravity by:

a) Reducing the natural cohesiveness between grains.

b) Reducing friction at the base through increased fluid pressure.

c) Decreasing gravitational attraction of the particles.

d) Only answers a and b are correct.

 

The percentage of a rock's total volume that is taken up by pore space is called the:

a) Permeability.

b) Aquifer.

c) Recharge

d) Porosity.

Stones behave best to the compressive load when they are placed with their natural ‘bedding:

a) Parallel to the load.

c) Perpendicular to the load

b) Oblique to the load.

d) Inclined to natural bed at 45°.

Most weather resisting rock is:

a) Quartzite.

b) Marble.

c) Limestone

d) Slate.

Building stone used for bridge piers is:

a) Sandstone.

b) Granite.

c) Marble

d) Limestone.

Selection of a dam site is made mainly based on:

a) The geology of the site.

c) Environmental study.

b) Cost of the dam.

d) Ground water condition in the area.

Abutment is:

a) Upstream side of a bridge.

b) Downstream side of a bridge.

c) The sides of the valley on which the bridges structure rests.

d) Openings for discharge.