HGE Past Boards Flashcards
Which of the following states the law of buoyancy?
Archimedes
The elastic tendency of liquids that makes them acquire the least surface area possible. It is responsible, for example, when an object or insect such as mosquitoes that is denser than water is able to float or run along the water surface.
Surface Tension
The ratio between the volume of water and the volume of voids:
Degree of saturation
The ratio between the volume of voids and the volume of the soil mass.
Porosity
The ratio between the weight of water and the weight of solid particles.
Moisture Content / Water Content
A flow in which the velocity of the fluid at a particular fixed point does not change with time.
Steady Flow
Which component of rock or soil is independent of inter-particle friction?
Cohesion
A phenomenon in which the strength and stiffness of a soil is reduced by earthquake shaking or other rapid loading.
Liquefaction
A pile of sand keeps from spreading out like a liquid because the weight of the sand keeps the grains struck together in their current arrangement, mostly out of static friction. This weight and pressure is called:
Effective Stress
Which of the following is not a soil component?
Gas
A practice or procedure used to assess the particle size distribution ( also called gradation ) of a granular material. The size distribution is often of critical importance to the way the material performs in use.
Sieve Analysis
According to USCS, what do you call a soil grain with grain size greater than 4.75mm but less than 75mm?
Gravel
Which of the following does not affect the settlement of a footing: (
a) . Location of GWT
(b) . Depth of backfill
(c) . Plasticity of the soil.
(d) None of these
D. None of these.
At what temperature (•C) at which liquid water has the highest density?
4 Degrees Celsius
The pressure exerted onto a liquid is transmitted equally and undiminished to all portions of the liquid. This principle in fluid mechanics is known as:
Pascals
