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HGE CONCEPTS > HGS CONCEPTS > Flashcards

HGS CONCEPTS Flashcards

1
Q

Excavations in open cut in excess of ———- depth shall have adequately designed shoring on support
A. 2.5
B. 2
C. 1
D. 1.5

A

D. 1.5

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2
Q

If the footprint area structure is 500 sq.m the minimum number of borehole/s
A. 2
B. 3
C. 4
D. 1

A

A. 2

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3
Q

The slope of the fill shall be no steeper than is safe for intended use. Fill slo[es shall no steeper than.
A. 33%
B. 50%
C. 67%
D. 45%

A

B. 50%
Or 2v:1H

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4
Q

Shape factor given nd and nf

A

Nf/Nd

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5
Q

A fill shall be compacted. A minimum of —— test’s for every 500 sq.m should be performed for every compliance with compaction requirement.
A. 2
B. 3
C. 4
D. 1

A

D. 1

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6
Q

Excavations in open cuts in excess of —— depth shall have adequately designed shoring on support
A. 2.5
B. 2
C. 1
D. 1.5

A

D. 1.5

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7
Q

Which is not an assumptions in bousssinesq theory?
A. The soil assumed to be semi-infinite
B. The soil assumed to be homogenous
C. The soil assumed to be cohesion less
D. The soil assumed to be sisotropic

A

C. The soil assumed to be cohesion less

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8
Q

Atmospheric pressure varies with
A. Altitude
B. Tempereture
C. Weather conditions
D. AOTA

A

C. AOTA

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9
Q

At any instant, the number of particles passing every section of the stream are always equal the flow is said to be?
A. Continuous
B. Turbulent
C. Seady
D. Constant

A

Steady Flow

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10
Q

Which of he following is the least recommended material to be used for subgrade
A. A-1-a
B. A-2-4
C. A-4
D. A-7-6

A
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11
Q

It is also known as the average diameter
A. D10
B. D20
C. D30
D. D50

A

A. D10

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12
Q

According to USCS particles with size greater than 75mm are called —-
A. Cobble
B. Rock
C. Gravel
D. Boulder

A

A. Cobble

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13
Q

also called streamline flow type of fluid (gas or liquid) flow in which the fluid travels irregular/ fluctuation and mixing

A. Continuous
B. Turbulent
C. Seady
D. Constant

A

B. Turbulent

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14
Q

If the amount of flow is constant over the length of the pipe

A. Continuous
B. Turbulent
C. Seady
D. Constant

A

A. Continuous

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15
Q

Particles sizes from 4.75 to 75 mm

A. Cobble
B. Rock
C. Gravel
D. Boulder

A

C. Gravel

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16
Q

Particles sizes from 0.75 to 4.75 mm
A. Cobble
B. Fines
C. Gravel
D. Sand

A

D. Sand

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17
Q

Particle smaller than 0.0075

A. Colloids
B. Fines
C. Gravel
D. Sand

A

B. Fines

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18
Q

Particle finer than clay
A. Colloids
B. Fines
C. Gravel
D. Sand

A

A. Colloids

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19
Q

Elastic tendency of liquids which makes them acquire the least surface area “mosquitos”

A

Surface tension

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20
Q

Ratio between vw & vv

A

Degree of saturation

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21
Q

Ratio between vv & vs

A

Void ratio

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22
Q

Ratio between ww & ws

A

Moisture content

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23
Q

Component of rock soil is independent of inter particle friction

A

Cohesion

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24
Q

The strength and stiffness of soil is reduced by earthquake

A

Liquefaction

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25
Q

Pile of sand keeps on spreading out like liquid

A

Effective stress

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26
Q

Organic materials and minerals

A

Soil component

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27
Q

Produced to assess the particle size distribution (gradation)

A

Sieve analysis

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28
Q

USCS

A

UNIFIED SOIL CLASSIFICATION SYSTEM

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29
Q

AASHTO

A

AMERICAN ASSOCIATION OF HIGHWAY AND TRANSPORTATION OFFICIALS

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30
Q

MIT

A

MASSACHUSETTS INSTITUTE OF TECHNOLOGY

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31
Q

USDA

A

UNITED STATED DEPARTMENT OF AGRICULTURE

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32
Q

The rise of liquid along walls of revolving cylinder above the initial level is

A
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33
Q

Fluid change the volume under external pressure

A

Compressibility

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34
Q

Effective diamater

A

D10

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35
Q

Average diameter

A

D50

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36
Q

Coefficient of compressibility to soil is the ratio of

A

Strain to stress

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37
Q

What is the unit weight of water in shear stress

A

9810 n/cu.mm

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38
Q

Gwt rises bearing pressure

A

Decreases

39
Q

Law of buoyancy

A

Archimedes

40
Q

In an ideal steady flow, the sum of all forms of energy along the streamlines are the same

A

Bernoulli’s principle

41
Q

The pressure exerted onto a liquid is transmitted equally & undiminished to all portions of a liquid are principle of

A

Pascals

42
Q

Temperature of water on its highest density

A

4 deg cel.

43
Q

A pressure surge or waves caused when a fluid in motion forced to stop “sudden momentum change”

A

Water hammer

44
Q

A line joining points of highest elevation of water in a series of vertical open pipes, water flows pressure

A

Hydraulic gradient

45
Q

Practically permeable, plastic and compressible decreases shear strength when distrubed

A

Characteristics of cohesive soil

46
Q

Vertical distance from datum, energy possessed by the fluid by virtue

A

Potential Head

47
Q

Line joining reservoir from the junction

A

Hydraulic loss

48
Q

Flow of area and velocity varies with time

A

Unsteady flow

49
Q

No energy losses, neglect the effects of viscosity & friction

A

Ideal flow

50
Q

Considers energy losses in the flow

A

Real flow

51
Q

Flow of viscosity & cross-sectional area varies with distance

A

Uniform flow

52
Q

Smooth flow of fluid

A

Laminar flow

53
Q

Particle greater than 75 mm

A

Cobble

54
Q

One of the following condition does not affect the bearing capacity

A

Load imposed onto soil

55
Q

Flow of area and velocity does not change with time

A

Steady flow

56
Q

Which of the following is not a soil component
A. Organic Materials
B. Minerals
C. Gas
D. NOTA

A

C

57
Q

Not greater than 4.75mm but less than 75mm

A

Gravel

58
Q

Which of the following does not affect the settlement of footing
A. Location of gwt
B. Depth of backfill
C. Plasticity of soil
D. NOTA

A

D

59
Q

Ratio between vw & vv

A

Degree of saturation

60
Q

Which is not a characteristics of a cohesion less soil
A. Easy to compact
B. High shear strength
C. Prone to settlement due to vibrating load
D. Practically impremeable

A

D

61
Q

In standard penetration test, medium dense sand have number of blows of
A. 4-10
B.10-30
C. 30-50
D. Over 50

A

B

62
Q

Opening 0.074 but less than 4.75

A

Sand

63
Q

Is an abrupt rise in water surface which results from retarding water flowing at lower stage

A

Hydraulic jump

64
Q

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

A

Hydrodynamics

65
Q

Most used soil properties

A

Void ratio

66
Q

A device used to determine the undrained shear strength of the soil which consist of four equal sized thin plates welded to a steel torque rod . The vane pushed into the soil and a torque rod to rotate the vane at a uniform speed to cause failure.

A

Shear vane

67
Q

In what plane is the additional stress (deviator stress) can affect the shear strength?
A. Horizontal
B. Vertical
C. Both horizontal and vertical
D. Inclined

A

A

68
Q

What test is not performed in the laboratory
A. Direct shear stress
B. Tri-axial shear stress
C. Unconfined compression stress
D. Vane test

A

D

69
Q

Ratio of ww & ws

A

Water content

70
Q

1.3 cNc+ qNq+ 0.3 q Ng are functions of
A. Cohesion
B. Angle of friction
C. Both Cohesion and angle of friction
D. NOTA

A

B

71
Q

Molecules of liquids gets attracted to
A. Cohesion
B. Adhesion
C. Capillary action
D. Surface tension

A

D

72
Q

Where is the metacenter for a stable equilibrium
A. Above the cg
B. At the cg
C. Below the cg
D. 1/2 of the total draft

A

A

73
Q

In civil engineering soil is
A. Found in earth’s crust
B. It is all plants grow
C. Uncemented aggregate
D. AOTA

A

C

74
Q

The weight per unit volume of a liquid at a standard temperature and pressure is called
A. Specific weight
B. Specific gravity
C. Mass density
D. NOTA

A

A

75
Q

Specific weight of liquid
A. Remains constant at every place
B. Does not remain constant at every place
C. Does not vary on any other planet
D. Varies from place to place in the earth

A

C

76
Q

Negative skin friction on piles
A. Causes by soft clay
B. Decreases the pile Capacity
C. Is caused due to relative settlement of soil
D. AOTA

A

D

77
Q

The shear strength of a cohesion less soil is
A. Proportional to the angle of the shearing resistance
B. Inversely proportional the angle of shearing resistance
C. Proportional to the tangent of the angle
D. Nota

A

C

78
Q

The intensity of a vertical stress at a depth due to a point load acting on the surface of a semi-infinite elastic soil mass is
A. Directly proportional to the depth
B. Inversely proportional to the depth
C. Directly proportional to the square of depth
D. Inversely proportional to the square of depth.

A

C

79
Q

When the metacenter of a floating body is lower than the center of gravity, then the body will be in
A. Unstable equilibrium
B. Stable equilibrium
C. Neutral equilibrium
D. Nota

A

A

80
Q

The metacentric height is the distance between
A. Cg of the floating body and center of buoyancy
B. Cg of the floating body and metacenter
C. Metacenter and the center of buoyancy
D. Original center of buoyancy and new center of buoyancy

A

B

81
Q

Pressure of force exerted on a certain area is the product of the intensity of the pressure and centroid of the area

A

Inclined
Horizontal
Vertical

82
Q

The pressure of the submerged surface coincide with the center of pressure

A

The surface is horizontal

83
Q

A soil mass is said to be in plastic equilibrium

A

If its is in verge of failure

84
Q

Practical fluid posses

A

Viscosity, surface tension, and compressibility

85
Q

Soil moisture driven off by heat

A

Hydroscopic water

86
Q

Seepage force in the soil

A

Perpendicular to the equipotential line
Proportional to the exit gradient
Proportional to the headloss

87
Q

Flow liquid particle had definite path and that path of adjacent particle do not cross

A

Streamline flow

88
Q

Soil shall be considered expansive if plasticity index is —- or grater

A

15

89
Q

Expansive soil passing no 200

A

D10

90
Q

Exceed in swell pressure; expansive soil

A

20%

91
Q

Excavation open cut depth for shoring

A

1.5 m

92
Q

A fill shall be compacted a minimum of —— test for every 500sqm.

A

3

93
Q

Unit weight of dry air at standard temp

A

12.5

HGE CONCEPTS (1 decks)

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