問題一覧
1
A flow in which the velocity of the fluid at a particular fixed point does not change with time
Steady flow
2
Which component of rock or soil is independent of inter particle friction?
cohesion
3
A phenomenon in which the strength and stiffness of a soil is reduced by earthquake shaking or other rapid loading
liquefaction
4
A pile of sand keeps from spreading out like a liquid because of 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.
effective stress
5
which of the following is not a soil component?
gas
6
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 perform in use.
sieve analysis
7
According to USCS, what do you call a soil grain size grater than 4.75 mm but less than 75 mm?
gravel
8
which of the following does not affect the settlement of a footing?
none of these
9
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
10
A line joining the points of highest elevation of water in a series of vertical open pipes rising a pipeline in which water flows under pressure is referred to as
hydraulic gradient
11
If the ground water table in a soil formation rises a resulting of flooding, the bearing capacity of the soil
decreases
12
One of the following foundation conditions does not affect the bearing capacity of the supporting soil
Position of ground water table
13
When the path lines of the individual particles of a following liquid are irregular curves and continually cross each other and form a complicated network, the flow is called:
Turbulent
14
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
15
At what temperature ('C) at which liquid has the highest density?
4
16
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.
Surface tension
17
The ratio between the volume of water and thw volume of the soil mass
Degree os saturation
18
The ratio between the volume of voids and the volume of the soil mass
Void ratio
19
The ration between the weight of the water and the weight of solid particles
Moisture content
20
A cohesive soil deposit is considered stiff if the unconfined compression strength, in Kpa, is between
100-200
21
A cohesive soil deposit is considered soft if the unconfined compression strength, in Kpa, is between
25-50
22
A cohesive soil deposit is considered very soft if the unconfined compression strength, in Kpa, is between
0-25
23
A ship, with vertical sides near the water line , weighs 40 MN and draws 6.7 m in salt water (s.gr= 1.026). Discharge of 2 MN of water ballast decreases the draft to 6.4m. what would the draft d of the ship in fresh water?
6.548
24
Atterberg limit tests is done on aggregates that pass through what sieve size?
40
25
Approximately how many times is the pressure of mercury greater than the pressure exerted by water?
13.6
26
In a bakery,
967
27
A fluid property that measures the fluid's resistance to shear stress
Viscosity
28
The vena contracta of a circular orifice is approximately ___ diameter downstream from the inner face of the orifice plate
1/2
29
When the ship's metacenter and center of gravity coincide at same point then the vessel is said to be in:
Neutral equilibrium
30
Which of the following is NOT a characteristics of a cohesionless soil.
Practically impermeable
31
Into a bakery dough mixing...
3.68
32
In what plane is the additional stress (deviator stress) can affect the shear stress?
Horizontal
33
What test is not performed in laboratory?
Vane test
34
in AASTHO, solid greater than 75 mm is classified as:
Cobbles
35
Molecules of liquid gets attracted to____
Surface tension
36
Where is the metacenter for stable equilibrium?
Above center of gravity
37
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
38
The shear strength of a cohisionless soil is:
Proportional to the tangent of the angle of shearing resistance
39
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
40
When the metacenter of a floating body is lower than the center of gravity, then the body will be in:
Unstable equilibrium
41
The metacentric height is the distance between the
Center of the gravity of the floating body and the metacenter
42
Negative skin friction on piles
All of the above
43
Specific weight of liquid____
Does not vary on the other planet
44
In civil engineering, soil is
uncemented aggregate
45
The weight per unit volume of a liquid at a standard temperature and pressure is called
Specific weight
46
what is the classification of soil having particle
size < 0.075
Silt and clay
47
what is the classification of soil having particle sizes from 2 to 0.075
Sand
48
What is the classification of soil having particles sizes from 0.075 to 0.002
Silt
49
What is the classification of soil having particles sizes from 76.2 to 2 mm
Gravel
50
What is the classification of soil having particles sizes <0.002
Clay
51
What type of soil having fraction passing the 75 mm sieve and retained on the No. 10
Gravel
52
What type of soil having fraction passing No. 10 (2 mm) sieve and retained on the No. 200 ( 0.075)
Sand
53
What type of soil having fraction passing the No. 200 sieve under AASHTO?
Silt and Clay
54
Type of soil where the fractions have plasticity index of 11 or more
Clayey
55
Type of soil where the fine fractions have plasticity index of 10 or less
Silty
56
Soil having size larger than 75 mm
Boulders and cobbles
57
Soil particles having particular size limits from 2 mm to 0.05 mm in diameter under USDA
Sand
58
Soil particles having particular size limits feom 0.05 mm to 0.002 mm in diameter under USDA
Silt
59
Soil particles having particular size limitsmaller than 0.002 mm in diameter under USDA
Clay
60
Classifitions of soil under AASHTO where P.I < LL - 30
A-7-5
61
Classifitions of soil under AASHTO where P.I > LL - 30
A-7-6
62
The shear strength of a soil:
Increases with increase in normal stress
63
Trial axial shear test acts on what axis?
All plane axis except x and y axis
64
1.3Cnc+qNq+0.4BnyY... are function of?
Angle of friction
65
The pressure above atmosphere is called:
gage pressure
66
Which of the following is not a unit of pressure?
Kn-m
67
Solid void ration can be greater than 1
true
68
The porosity of soil can be grater than 1
false
69
The pressure on any surface always acts:
normal to the surface
70
In vectors, normal means:
perpendicular
71
When a tank of water is subjected to a vertical acceleration, the water surface will:
remain horizontal
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問題一覧
1
A flow in which the velocity of the fluid at a particular fixed point does not change with time
Steady flow
2
Which component of rock or soil is independent of inter particle friction?
cohesion
3
A phenomenon in which the strength and stiffness of a soil is reduced by earthquake shaking or other rapid loading
liquefaction
4
A pile of sand keeps from spreading out like a liquid because of 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.
effective stress
5
which of the following is not a soil component?
gas
6
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 perform in use.
sieve analysis
7
According to USCS, what do you call a soil grain size grater than 4.75 mm but less than 75 mm?
gravel
8
which of the following does not affect the settlement of a footing?
none of these
9
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
10
A line joining the points of highest elevation of water in a series of vertical open pipes rising a pipeline in which water flows under pressure is referred to as
hydraulic gradient
11
If the ground water table in a soil formation rises a resulting of flooding, the bearing capacity of the soil
decreases
12
One of the following foundation conditions does not affect the bearing capacity of the supporting soil
Position of ground water table
13
When the path lines of the individual particles of a following liquid are irregular curves and continually cross each other and form a complicated network, the flow is called:
Turbulent
14
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
15
At what temperature ('C) at which liquid has the highest density?
4
16
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.
Surface tension
17
The ratio between the volume of water and thw volume of the soil mass
Degree os saturation
18
The ratio between the volume of voids and the volume of the soil mass
Void ratio
19
The ration between the weight of the water and the weight of solid particles
Moisture content
20
A cohesive soil deposit is considered stiff if the unconfined compression strength, in Kpa, is between
100-200
21
A cohesive soil deposit is considered soft if the unconfined compression strength, in Kpa, is between
25-50
22
A cohesive soil deposit is considered very soft if the unconfined compression strength, in Kpa, is between
0-25
23
A ship, with vertical sides near the water line , weighs 40 MN and draws 6.7 m in salt water (s.gr= 1.026). Discharge of 2 MN of water ballast decreases the draft to 6.4m. what would the draft d of the ship in fresh water?
6.548
24
Atterberg limit tests is done on aggregates that pass through what sieve size?
40
25
Approximately how many times is the pressure of mercury greater than the pressure exerted by water?
13.6
26
In a bakery,
967
27
A fluid property that measures the fluid's resistance to shear stress
Viscosity
28
The vena contracta of a circular orifice is approximately ___ diameter downstream from the inner face of the orifice plate
1/2
29
When the ship's metacenter and center of gravity coincide at same point then the vessel is said to be in:
Neutral equilibrium
30
Which of the following is NOT a characteristics of a cohesionless soil.
Practically impermeable
31
Into a bakery dough mixing...
3.68
32
In what plane is the additional stress (deviator stress) can affect the shear stress?
Horizontal
33
What test is not performed in laboratory?
Vane test
34
in AASTHO, solid greater than 75 mm is classified as:
Cobbles
35
Molecules of liquid gets attracted to____
Surface tension
36
Where is the metacenter for stable equilibrium?
Above center of gravity
37
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
38
The shear strength of a cohisionless soil is:
Proportional to the tangent of the angle of shearing resistance
39
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
40
When the metacenter of a floating body is lower than the center of gravity, then the body will be in:
Unstable equilibrium
41
The metacentric height is the distance between the
Center of the gravity of the floating body and the metacenter
42
Negative skin friction on piles
All of the above
43
Specific weight of liquid____
Does not vary on the other planet
44
In civil engineering, soil is
uncemented aggregate
45
The weight per unit volume of a liquid at a standard temperature and pressure is called
Specific weight
46
what is the classification of soil having particle
size < 0.075
Silt and clay
47
what is the classification of soil having particle sizes from 2 to 0.075
Sand
48
What is the classification of soil having particles sizes from 0.075 to 0.002
Silt
49
What is the classification of soil having particles sizes from 76.2 to 2 mm
Gravel
50
What is the classification of soil having particles sizes <0.002
Clay
51
What type of soil having fraction passing the 75 mm sieve and retained on the No. 10
Gravel
52
What type of soil having fraction passing No. 10 (2 mm) sieve and retained on the No. 200 ( 0.075)
Sand
53
What type of soil having fraction passing the No. 200 sieve under AASHTO?
Silt and Clay
54
Type of soil where the fractions have plasticity index of 11 or more
Clayey
55
Type of soil where the fine fractions have plasticity index of 10 or less
Silty
56
Soil having size larger than 75 mm
Boulders and cobbles
57
Soil particles having particular size limits from 2 mm to 0.05 mm in diameter under USDA
Sand
58
Soil particles having particular size limits feom 0.05 mm to 0.002 mm in diameter under USDA
Silt
59
Soil particles having particular size limitsmaller than 0.002 mm in diameter under USDA
Clay
60
Classifitions of soil under AASHTO where P.I < LL - 30
A-7-5
61
Classifitions of soil under AASHTO where P.I > LL - 30
A-7-6
62
The shear strength of a soil:
Increases with increase in normal stress
63
Trial axial shear test acts on what axis?
All plane axis except x and y axis
64
1.3Cnc+qNq+0.4BnyY... are function of?
Angle of friction
65
The pressure above atmosphere is called:
gage pressure
66
Which of the following is not a unit of pressure?
Kn-m
67
Solid void ration can be greater than 1
true
68
The porosity of soil can be grater than 1
false
69
The pressure on any surface always acts:
normal to the surface
70
In vectors, normal means:
perpendicular
71
When a tank of water is subjected to a vertical acceleration, the water surface will:
remain horizontal