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Hydraulics and Principles of Geotechnical Engineering
  • Kate Ann Marie Cabero

  • 問題数 61 • 10/25/2023

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    問題一覧

  • 1

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

    Specific Weight

  • 2

    In Civil Engineering, soil is _______.

    Uncemented Aggregate

  • 3

    Specific Weight of liquid _________.

    Does not vary on any other planet

  • 4

    Negative Skin Friction on Piles ________.

    All of the above

  • 5

    The metacentric height is the distance between the ______.

    Center of gravity of the floating body and the metacenter

  • 6

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

    Unstable equilibrium

  • 7

    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

  • 8

    The shear strength of a cohesionless soil is ______.

    Proportional to the tangent of the angle of shearing resistance

  • 9

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

    0.5 and 1.0

  • 10

    Where is the metacenter for stable equilibrium?

    Above the center of gravity

  • 11

    Molecules of liquid gets attracted to _______.

    Surface Tension

  • 12

    Nc, Nq, and Ny are function of _______.

    Angle of Friction

  • 13

    In AASHTO, soil greather than 75mm is classified as _______.

    Cobbles

  • 14

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

    Water Content

  • 15

    What test is NOT performed in laboratory?

    Vane Test

  • 16

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

    Horizontal Plane

  • 17

    Triaxial Shear Test acts on what axis?

    All plane axis except x and y axis

  • 18

    The Shear Strength of a soil _______.

    Increases with increase normal stress

  • 19

    ______ is a device used to determine the undrained shear streghth of the soil which consists of four equal-sized thin steel plates welded to a steel torque rod.

    Shear Vane

  • 20

    ______ is the most used property in soil properties.

    Void Ratio

  • 21

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

    Hydrodynamics

  • 22

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

    Hydraulic Jump

  • 23

    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 to a liquid, allowing everything it previously supported to sink.

    Liquefaction

  • 24

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

    24 to 48

  • 25

    Section 302.2.2 of the NSCP 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

  • 26

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

    Decrease in the Vertical Pressure

  • 27

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

    Decrease

  • 28

    One of the following conditions DOES NOT affect the bearing capacity of the supporting soil:

    Load imposed onto the soil

  • 29

    A line joining the points of the 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

  • 30

    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

  • 31

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

    Continuous Flow

  • 32

    A granular soil deposit is considered MEDIUM if the blow count of a standard penetration is between:

    10 to 30

  • 33

    NOT characterisitic of cohesionless soils:

    High Shear Strength

  • 34

    Prone to Settlement under vibratory load.

    40

  • 35

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

    40

  • 36

    The ratio between the volume of the water and the volume of the voids in a soil mass.

    Degree of Saturation

  • 37

    The ratio between the volume of voids and the total volume of the soil mass.

    Porosity

  • 38

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

    4 Degree Celsius

  • 39

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

    Pascal

  • 40

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

    Bernoulli

  • 41

    The largest grain size that passed a no. 200 in mm is ___.

    0.0740mm

  • 42

    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.

    Turbulent Flow

  • 43

    In the Cohesion Strength, k is equal to ____.

    0.50

  • 44

    Soil derives its strength from its capacity to resist ____.

    Shear

  • 45

    NOT component of the soil mass:

    None of the above

  • 46

    The component of Shear Strength of a rock or soil that interparticle friction.

    Cohesion

  • 47

    In USCS, which are considered coarse grained if the passing through no. 200 sieve is less than ____.

    50

  • 48

    DOES NOT affect foundation settlement:

    None of the above

  • 49

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

    Liquefaction

  • 50

    PRINCIPLE: A body placed in a liquid is buoyed up by a force equal to the weight of the displaced liquid.

    Archimedes

  • 51

    If with steady flow in any length or reach of a steam, the average velocity at ever cross-section is the same in that reach.

    Uniform Flow

  • 52

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

    Above the center of gravity

  • 53

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

    Discharge

  • 54

    If the discharge passing a given cross-section of a stress is constant with time.

    Steady Flow

  • 55

    Value of surface tension at normal room temperature.

    0.064 N/m

  • 56

    The force why small insects can walk on the water.

    Surface Tension

  • 57

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

    Over Consolidated

  • 58

    What happens when there is a lowering of water table?

    There is a decrease of lateral pressure

  • 59

    The ratio of the volume of voids and the volume of solids.

    Void Ratio

  • 60

    The groud 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

  • 61

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

    The dry unit weight of soil will increase