HGE TERMS

Mea Jane Ramos · 62問 · 1年前

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問題一覧

The weight per unit volume of a liquid at a standard temperature and pressure is called _________.

Specific Weight

In Civil Engineering, soil is ________.

Uncemented Aggregate

Specific Weight of liquid ________.

Does not vary on any other planet

Negative Skin Friction on Piles ________

All of the above

The metacentric height is the distance between the ________.

Center of the gravity of the floating body and the metacenter

When the metacenter of a floating body is lower than the center of gravity, then the body will be in ________.

Unstable equilibrium

The intensity of vertical stress at a depth due to a point load acting on the surface of a semi infinite elastic soil mass is ________.

Directly proportional to the square of depth

The shear strength of a cohesionless soil is ________.

Proportional to the tangent of the angle of shearing resistance

If the volume of voids is equal to the volume of solids, what is the porosity and void ratio equal to respectively.

0.5 and 1.0

Where is the metacenter for stable equilibrium?

Above the center of gravity

Molecules of liquid gets attracted to ________.

Surface Tension

In 1.3cNc + qNq + 0.4yBNy. Nc, Nq, and Ny are function of ________.

Angle of Friction

In AASHTO, soil greater than 75 mm is classified as ________.

Cobbles

Ratio of weight of water to the weight of solid particles.

Water Content

What test is NOT performed in laboratory ?

Vane Test

In what plane is the additional stress (deviator stress) can affect the shear stress ?

Horizontal Plane

Triaxial Shear Test acts on what axis ?

All plane axis except x and y axis

The Shear Strength of a soil ________.

Increases with increase in normal stress

_____ is a device used to determine the undrained shear strength of the soil which consists of four equal-sized thin steel plates welded to a steel torque rod. The vane is pushed into the soil and torque ( T ) is applied at the top of the torque rod to rotate the vane at a uniform speed to cause failure.

Shear Vane

_____ is the most used property used in soil properties.

Void Ratio

_____ is a branch of hydraulics which deals with the study of forces ( including velocity and acceleration ) exerted by or upon liquids in motion.

Hydrodynamics

_____ is an abrupt rise in water surface which results from retarding water flowing at lower stage.

Hydraulic Jump

It occurs in soils of saturated cohesionless particles such as sand and causes a sudden drop in shear strength and its bearing capacity. In effect, the soil turns into a liquid, allowing everything it previously supported to sink.

Liquefaction

A cohesive soil deposit is considered soft if the unconfined compression strength in kPa is between :

24 to 48

Section 302.2.2 of the National Structural Code of the Philippines provides that the slope of Cut surfaces shall be no steeper than is safe for intended use and shall be no steeper than _____.

1 to 2

What would happen if the ground water table will be at the ground level ?

Decrease in the Vertical Pressure

If the ground water table in a soil formation rises as a resulting of flooding, the bearing capacity of the soil _____.

Decrease

One of the following foundation conditions does not affect the bearing capacity of the supporting soil.

Load imposed onto the soil

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 :

Hydraulic Gradient

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?

Water Hammer

When at any instant, the number of particles passing every section of the stream are always equal, the flowbis said to be ________.

Continuous

A granular soil deposit is considered medium if the blow count of a standard penetration is between?

10 - 30

One of the following is not Characteristic of cohesionless soils :

High Shear Strength

Prone to Settlement under vibratory load.

A granular soil deposit is considered medium if the blow count of a standard penetration is between?

10 - 30

The fraction of soils passing which sieve number is used for Atterberg Limits tests of soils?

The ratio between the volume of the water and the volume of the voids in a soil mass is referred to as :

Degree of Saturation

Section 302.2.2 of the National Structural Code of the Philippines (NSCP C101-10) provides that the slope of Cut surfaces shall be no steeper than is safe for intended use and shall be no steeper than _____.

1 to 2

Water has a maximum unit weight at a temperature of _____.

4 ℃

The ratio between the volume of voids and the total volume of the soil mass is referred to as :

Porosity

The pressure exerted onto a liquid is transmitted undiminished to all portions of the liquid. The principle of mechanics is attributed to:

Pascal

In any stream flowing steadily without friction, the total energy contained is the same at every point in its path of low. This principle is attributed to :

Bernoulli

The largest grain size that passes a no. 200 sieve in millimeters is _____.

0.0740 mm

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 :

Turbulent

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?

Water Hammer

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 :

Hydraulic Gradient

A cohesive soil deposit is considered soft if the unconfined compression strength in kPa is between :

24 to 48

The cohesion strength of a cohesive soil is a compression strength, C = k * qu where k is equal to _______.

0.50

According to USCS soil classification of a soil particle whose size is greater than 75 mm is called _____.

Cobbles

Section 302.4.5 of the National Structural Code of the Philippines (C101-10) provides that slope of fill surface shall be no steeper than is safe for its intended use and shall not be steeper than _____.

1:2

Soil derives its strength from its capacity to resist _____.

Shear

Which of the following is not a component of the soil mass?

None in the list

The component of Shear strength of a rock or soil that interparticle friction is called _____.

Cohesion

Section 302.2.2 of the National Structural Code of the Philippines provides that the slope of Cut surfaces shall be no steeper than is safe for intended use and shall be no steeper than _____

1 to 2

In accordance with the Unified Soils Classification of Soils, which are considered coarse grained if the passing thru No. 200 sieve is less than _____.

One of the following foundation conditions does not affect foundation settlement.

None of the other choices

A process by which water-saturated soil sediment temporarily loss strength and acts as a fluid.

Liquefaction

A body placed in a liquid is buoyed up by a force equal to the weight of the displaced liquid. This principle of buoyancy was attributed to :

Archimedes

If with steady flow in any length or reach of a stream, the average velocity at every cross-section is the same in that reach, the flow is said to be :

Uniform

A ship floating in seawater is stable if the metacentric height is :

Above the center of gravity

The volume of liquid passing a cross-section of a stream.

Discharge

If the discharge passing a given cross-section of a stress is constant with time, the flow at that section is called _____.

Steady

The surface tension phenomenon is one of the reasons that small insects can walk on water. Determine the value of surface tension at normal room temperature.

0.064 N/m

Determine the force why small insects can walk on the water.

Surface Tension

It is a soil whose present effective over burn pressure is less than that which the soil experienced in the past.

Over Consolidated

What happens when there is a lowering of water table ?

There is a decrease of lateral pressure

What is the ratio of the weight of water to the weight of solids in a given volume of soil ?

Water Content

What is the ratio of the volume of water to the volume of voids ?

Degree of Saturation

What is the ratio of the volume of voids to the total volume ?

Porosity

What is the ratio of the volume of voids to the volume of solids ?

Void Ratio

The ground water table is located at a certain depth below the ground surface. This will cause an upward seepage. What would be the resulting effective stress at a certain point below the ground water table due to the upward seepage.

This will cause the decrease of the effective stress at that point

If we increase the compaction energy, what will happen to the max. dry density ( MDD ) ?

The dry unit weight of soil will increase

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