問題一覧
1
What would happen if the ground water table will be at the ground level?
Decrease in the Vertical Pressure
2
A line joining the points of 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
3
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
4
One of the following foundation conditions does not affect foundation settlement.
Effect of load to the foundations
5
When at any instant, the numbers of particles passing every section of the stream are always equal; the flow is said to be___.
Continuous
6
The fraction of soil passing which sieve number is used for Atterberg Limits tests of soils?
40
7
One of the following is not characteristic of cohesionless soils:
High Shear Strength
8
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
9
The ratio between the volume of voids and the total volume of the soil mass is referred to as:
Porosity
10
Water has a maximum unit weight at a temperature of _____.
4oC
11
The pressure exerted onto a liquid is transmitted undiminished to all portions of the liquid. The principle of mechanics is attributed to:
Pascal
12
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
13
The largest grain size that passes a no. 200 sieve in millimetres is____
0.0740 mm
14
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
15
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
16
A line joining the points of 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
17
A cohesive soil deposit is considered soft if the unconfined compression strength in kPa is between:
24 to 48
18
The cohesion Strength of a cohesive soil is a compression strength, C=k·qu, where k is equal to____
0.50
19
According to USCS soil classification of a soil particle whose size is greater than 75 mm is called_____.
Cobbles
20
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
21
Soil derives its strength from its capacity to resist____.
Shear
22
Which of the ff. is not a component of the soil mass?
None in the list
23
The component of shear strength of a rock of soil that interparticle friction is called_____.
Cohesion
24
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
25
In accordance with the Unified Soils Classification of Soils, which are considered course grained if the passing through No. 200 sieve is less than____.
50
26
One of the following foundation conditions does not affect foundation settlement.
None of the other choices
27
A process which water-saturated soil sediment temporarily loss strength and acts as a fluid.
Liquefaction
28
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
29
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
30
A ship floating in seawater is stable if the metacentric height is:
Above the center of gravity
31
The volume of liquid passing a cross-section of a stream
Discharge
32
If the discharge passing a given cross-section of a stress is constant wit time, the flow at that section is called
Steady
33
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
34
Determine the force why small insects can walk on the water
Surface Tension
35
It is a soil present effective over burn pressure is less than that which the soil experienced in the past.
Over Consolidated
36
What happens when there is a lowering of water table?
there is a decrease of lateral pressure
37
What is the ratio of the weight of water to the weight of solids in a given volume of soil?
Water Content
38
What is the ratio of the volume of water to the volume of voids?
Degree of Saturation
39
What is the ratio of the volume of voids to the total volume?
Porosity
40
What is the ratio of the volume of voids to the total volume of solids?
Void Ratio
41
Which component of rock or soil is independent of interparticle friction?
Cohesion
42
A phenomenon in which the strength and stiffness of a soil is reduced by earthquake shaking or other rapid loading.
Liquefaction
43
A pile of sand keeps from spreading out like a liquid because the weight of the sand keeps the grains stuck together in their current arrangement, mostly out of static friction. The weight and pressure is called.
Effective Stress
44
Which of the following is not a soil component?
gas
45
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 performs in use.
Sieve Analysis
46
According to USCS, what do you call a soil grain with grain size greater than 4.75 mm but less than 75 mm.
Gravel
47
Section 302.4.1 NSCP. Steepness of the fill (above natural ground) shall not exceed:
1:2
48
Section 302.3.3 NSCP. Steepness of the cut shall not exceed
1:2