Psad Flashcards

(41 cards)

1
Q

It is the process of bringing earthwork to the desired shape and elevation

A

Grading

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2
Q

It is the process of giving a chiral soils and off abrasive resistance and shear strength to accommodate traffic or design loads

A

Soil stabilization

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3
Q

It is the process of bringing each roadway layer to its final grade

A

Trimmings

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4
Q

It is the process of increasing the density of a soil by mechanically forcing the soil particles closer together there by expelling the air from the void spaces in the soil

A

Compaction

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5
Q

It is the process of increasing the density of a cohesive soil from the expulsion of water from the soil void spaces

A

Consolidation

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6
Q

Complete or partial dismantling of a building or structure by pre-planned & control methods or procedures

A

Demolition

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7
Q

The action of flattening poured concrete into a smooth flat layer prior to finishing the surface

A

Screeding

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8
Q

It is the bringing of a concrete surface to true grade with enough mortar to produce the desired finish

A

Leveling

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9
Q

It is the measure of the materials ability to resist indentation or penetration

A

Hardness

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10
Q

It is the ability of a material to deform in the plastic range without breakage or or the ability to undergo considerable plastic deformation under tensile load before actual rapture

A

Ductility

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11
Q

It is the ability of a material to absorb energy before fracture takes place

A

Toughness

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12
Q

It is the ability of a material to recover its shape and size after deformation

A

Resilience

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13
Q

When material has to support a load for a long period of time what causes it to continue to deform until a sudden fracture occurs?

A

Creep

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14
Q

When a material is subjected to repeated cycles of stress or strain what causes its structure to breakdown ultimately leading to fracture

A

Fatigue

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15
Q

It is the point where the object suffers note or by the effect of the gravitational force acted upon it

A

Center of gravity

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16
Q

It is point through which the resultant of the resistance to the applied lateral force acts

A

Center of rigidity

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17
Q

It is point through which the applied seismic force acts

A

Center of mass

18
Q

It is the distance between the center of rigidity and center of mass

19
Q

It is the displacement of 1 level relative to the level above or below

20
Q

Lateral displacement of the story relative to the base

A

Story displacement

21
Q

A measure of energy released in an earthquake

22
Q

A measure of strength of shaking during earthquake

23
Q

It is the point deep below the earth’s surface where the earthquake originated

24
Q

It is the point on earth’s surface directly above the focus

25
A device used to anchor tendons on prestressed concrete members
Anchorage
26
It is a branch of mechanics which studies the effects and distributions of forces of rigid bodies which are and remain at rest
Statics
27
If two forces are in equilibrium they are ___________
Equal, collinear, and oppositely directed
28
A contact resistance by one body when the second body moves or tends to move past the first body
Friction
29
The friction force always acts__________
Opposite to the motion or to the tendency to move
30
The branch of mechanics that deals with bodies in motion
Dynamics
31
The term is used to define the motion of a particle or body without consideration of the forces causing the motion
Kinematics
32
The branch of mechanics that relates the force acting on the body to its mass and acceleration
Kinetics
33
A body at rest will remain to be at rest or in motion will be remain in motion along a straight path unless acted upon by an unbalanced force
Newton first law of motion
34
A particle acted upon by an unbalanced force system has an acceleration in line with and directly proportional to the resultant of the four system and inversely proportional to its mass
Newton's second law of motion
35
In every action there is always an equal and opposite reaction
Newton's third law of motion
36
The motion of a rigid body in which a straight line passing through any two of its particle always remain to be parallel to its initial position
Translation
37
The motion of a rigid body in which the particles move in circular paths with their centers on a fixed straight line called the axis of rotation
Rotation
38
The motion of a rigid body in which all particles in the body remain at a constant distance from a fixed reference plane
Plane motion
39
Mixture of sand, gravels and other aggregates and held together in a rock line mass with paste of cement and water
Concrete
40
This test is used to test the workability of the concrete
Slump test
41
It is performed by submerging the specimen underwater this is done in order to prevent moisture loss
Curing