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. |
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b) Reducing friction at the base through increased fluid pressure. |
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c) Decreasing gravitational attraction of the particles. |
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d) Only answers a and b are correct. |
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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. |
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b) Downstream side of a bridge. |
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c) The sides of the valley on which the bridges structure rests. |
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d) Openings for discharge. |
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