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Surface tension
The elastic tendency of liquids which 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.
Degree of saturation
The ratio between the volume of water and the volume of voids.
Porosity
The ratio between the volume of voids and the volume of the soil mass.
Moisture content
The ratio between the weight and the weight of solid particles.
Archimedes
Which of the following states the law of buoyancy?
Steady flow
A flow in which the velocity of the fluid at a particular fixed point does not change with time.
Cohesion
Which component of rock or soil is independent of interparticle friction?
Liquefaction
A phenomenon in which the strength and stiffness of a soil is reduced by earthquake shaking or other rapid loading.
Effective stress
A pile of sand keeps from spreading out like a liquid because the weight of the sand keeps the grains stuck together in their current arrangement, mostly out of static friction. This weight and pressure is called:
Gas
Which of the following is not a soil component?
Sieve analysis
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.
Gravel
According to USCS, what do you call a soil grain with grain size greater than 4.75 mm but less than 75 mm?
None of these
Which of the following does not affect the settlement of a footing?
Turbulent
When the path lines of the individual particles of a flowing liquid are irregular curves and continually cross each other and form a complicated network, the flow is called:
Hydraulic gradient
A line joining the points of highest elevation of water in a series of vertical open pipes rising from a pipeline in which water flows under pressure is referred to as:
Water hammer
A pressure surge or wave caused when a fluid in motion is forced to stop or change direction suddenly (momentum change) is referred to in hydraulics as:
4°C
At what temperature (°C) at which liquid water has the highest density?
Pascals
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:
Bernoulli
In any stream flowing steadily without friction the total energy contained in the same at every point in its path of flow. This principle is attributed to:
Possess low shear strength
Which of the following is not a characteristic of a cohesive soil?
Porosity
The ratio of the volume of voids to the total volume of soil.
Degree of saturation
The ratio of the volume of water to the volume of voids.
Practically impermeable
Which of the following is not a characteristic of a cohesionless soil.
10 to 30
In standard penetration test, medium dense sand have number of blows of:
Sand
In accordance with the USCS, a soil grain having a size greater than No. 200 sieve opening (0.074 mm) but less than that of a No. 4 sieve (4.75 mm opening) is called:
10 to 30
A granular soil deposit is considered medium dense if the blow count of a standard penetration test is between:
Decreases
If the ground water table in a soil formation rises as a result of flooding, the bearing capacity of the soil:
Cobble
According to USCS, particles with size greater than 75 mm are called:
Steady
A type of flow where at any instant, the amount of fluid particles passing through a pipe section is constant.
Water hammer
A pressure surge or wave caused when a fluid in motion is forced to stop or change direction suddenly (momentum change) is referred to in hydraulics as:
Hydraulic grade line
A line joining the points of highest elevation of water in series of vertical open pipes rising from a pipeline in which water flows under pressure.
Decreases
If the ground water table in a soil formation rises as a resulting of flooding, the bearing capacity of the soil:
Load imposed onto the soil
One of the following foundation conditions does not affect the bearing capacity of the supporting soil:
Liquefaction
This occurs when a cohesionless saturated or partially saturated soil substantially loses strength and stiffness in response to an applied stress such as shaking during an earthquake or other sudden change in stress condition, in which material that is ordinarily a solid behaves like a liquid.
Conservation of mass
On what fundamental concept is the continuity of flow primarily based?
Hydrodynamics
A branch of fluid mechanics that deals with the study of forces exerted by liquids in motion.
All of these
The total pressure force on a plane surface is equal to the area multiplied by the intensity of pressure at the centroid if the surface is:
Water hammer
A pressure surge or wave caused when a fluid in motion is forced to stop or change direction suddenly (momentum change) is referred to in hydraulics as:
Long pipe
Which of the following is not affected by minor loss?
Shear vane test
Which of the following shear tests of soil is not performed in a laboratory?
Tensile strength
In the context of using soil as a construction material, which of the following properties is not typically considered a primary parameter for evaluating its suitability?
Void ratio
Which soil property is most used in engineering?
Practically impermeable
Which if the following is not a characteristic of cohesionless soil?
Standard proctor test
Which of the following is not performed in the laboratory
Uncemented aggregate
In civil engineering, what is soil?
Horizontal plane
If the deviator stress is increased, the shear stress will increase in the ________________.
Cohesion
It is the attraction between water molecules.
Metacenter is above the center of gravity
When will the ship be stable?
All of the above
Pressure rise in water hammer is affected by:
Parabola
A fireman aims his hose at an angle of 30 . What would be the shape of the projectile?
Moisture content
The ratio between the weight of water and the weight of solid particles.
Mass
The liquid flow is based on the concept of conservation of _______.
Directly proportional to cohesion
The shear strength is __________.
Permeability
The property of soil which water percolates throughout its layer.
Angle of friction
In Terzaghi's principle, the term and are based on __________.