HGE

Question 1

A pressure surge or wave caused when a fluid in motion is forced to stop or change direction suddenly (momentum change)

Answer 1

water hammer

Question 2

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

Answer 2

Hydraulic grade line

Question 3

Does not affect the bearing capacity of soil

Answer 3

Load imposed

Question 4

ratio of inertia force of a flowing fluid and the viscous force of the liquid

Answer 4

Reynolds number

Question 5

An orifice is called a large orifice if water head is

Answer 5

5 times diameter of orifice

Question 6

Fluids change the volume under external pressure due to

Answer 6

compressibility

Question 7

The coefficient of compressibility of soil is the ratio of

Answer 7

strain to stresses

Question 8

The seepage force in a soil is

Answer 8

Perpendicular to equipotential lines
Proportional to exit gradient
Proportional to headloss

Question 9

NOT a characteristic of cohesionless soil

Answer 9

Practically impermeable

Question 10

Ideal fluid is

Answer 10

Frictionless and incompressible

Question 11

A rise or fall of liquid in a glass tube of a very small diameter when dipped is

Answer 11

Directly proportional to the Unit weight of liquid

Question 12

Atmospheric pressure varies with

Answer 12

Altitude
Temperature
Weather conditions

Question 13

Falling drops of water becomes spheres due to

Answer 13

Surface tension

Question 14

Excavations in open cuts in excess of _______ depth shall have adequately design shoring in support

Answer 14

1.5m

Question 15

If the footprint area of structure is 500m^2 the minimum number of borehole/s

Answer 15

2

Question 16

The shear strength of a soil:

Answer 16

Increases with increase in normal stress

Question 17

Triaxial shear test acts on what axis?

Answer 17

all plane axis except x and y axis.

Question 18

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

Answer 18

Horizontal

Question 19

What test is not performed in laboratory?

Answer 19

Vane test

Question 20

In AASHTO, soil greater than 75mm is classified as:

Answer 20

Cobbles

Question 21

Nc, Nq, Ngamma are functions of

Answer 21

Internal Friction

Question 22

Molecules of liquids gets attracted to

Answer 22

surface tension

Question 23

Where is the metacenter for stable equilibrium

Answer 23

above the center of gravity

Question 24

The shear strength of the cohesionless soil is

Answer 24

Proportional to the tangent of the angle of shearing resistance

Question 25

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

Answer 25

Directly proportional to the square of depth

Question 26

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

Answer 26

unstable equilibrium

Question 27

the metacentric height is the distance between the

Answer 27

center of the gravity of the floating body and the metacenter

Question 28

Negative skin friction on piles

Answer 28

caused by soft clay decreases the pile capacity caused due to relative settlement of soil

Question 29

Specific weight of liquid

Answer 29

does not vary on any other planet

Question 30

In civil engineering, soil is

Answer 30

uncemented aggregate

Question 31

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

Answer 31

specific weight

Question 32

Total pressure on top of a closed cylindrical vessel completely filled with liquid is directly proportional to

Answer 32

(radius)^4

Question 33

Known as the average diameter

Answer 33

D50

Question 34

Compression index of soil

Answer 34

Increase with an increase in the liquid limit

Question 35

Unlike Particles

Answer 35

Adhesion

Question 36

Like Particles

Answer 36

Cohesion

Question 37

Rapid curing of asphalt is formed by cutting asphalt cement

Answer 37

Petroleum

Question 38

A soil mass is said to be in plastic equilibrium

Answer 38

Verge of failure

Question 39

Practical fluid

Answer 39

Viscosity Surface Tension Compressibility

Question 40

Moisture driven by heat

Answer 40

hydroscopic water

Question 41

The flow in which liquid particles has a definite path and path of adjacent particles do not cross

Answer 41

Stream line flow

Question 42

# of borehole - 50 m^2

Answer 42

1

Question 43

# of borehole - 500 m^2

Answer 43

2

Question 44

# of borehole - 1800 m^2

Answer 44

4

Question 45

# of borehole - 3200 m^2

Answer 45

6

Question 46

# of borehole - 7400m^2

Answer 46

8

Question 47

Soil shall be considered expansive if plasticity index is _____ or greater

Answer 47

15

Question 48

Soil shall be considered expansive if the soil particle pass a No. 200 sieve is more than

Answer 48

10%

Question 49

Confining pressure resulting from the fill and exceed swell pressure by

Answer 49

20%

Question 50

A fill shall be compacted A minimum of _____ test for every 500m^2

Answer 50

3