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47問 • 1年前

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The material composition is the same, but its mechanical properties are different in every direction.

Orthotropic Material

Refers to the tendency of solid materials to return to their original shape after forces are applied on them. When the forces are removed, the object will return to its initial shape and size.

Elasticity

Refer to the stress at which a material begins to deform plastically

Yielding

The ability of the material to absorb energy in the plastic range.

Toughness

The ability of the material to absorb energy in the elastic range.

Resilience

The term refers to the ability of a material to deform in the plastic range without breaking.

Ductility

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

Center of rigidity

The point on a structure where the resultant vertical force acts.

Center of mass

The distance between the center of mass and center of rigidity.

Eccentricity

Which of the following can be measured by seismometer?

Ground displacement

Which of the following refers to the flexibility of a structural system?

Inverse of stiffness

The stress point where a material will have appreciable deform when small amount of stress is experienced.

Yielding

The ability of the material to deform in plastic range without breaking.

Toughness

The greatest stress that can be applied to an elastic body without causing permanent deformation.

Elastic limit

What will develop if the center of mass and center of rigidity of a structure does not coincide?

Torsional shear stress

A building which has a floor which is less than 70% as stiff as the floor immediately above it, or less than 80% as stiff as the average stiffness of the three floors above it.

Soft storey

Refers to the lateral displacement of one level relative to the other level above or below.

Storey drift

Which of the following best refers to the rigidity of a structure.

Reciprocal of deflection

Which of the following best describes liquefaction?

Sudden drop of shear strength

If two springs with stiffness k1 and k2 are arranged in parallel, which of the following gives the combined stiffness k?

𝐤 = 𝐤𝟏 + 𝐤𝟐

The point through which the resultant of the resistance to the applied lateral force acts.

center rigidity

The point on a structure through which the applied seismic force acts.

Center of mass

Refers to the flexibility of a structure

Reciprocal of stiffness

A property of a material which has the same composition at every point, but the elastic property may not be the same in all directions.

Isotropic

A property of a material that has the same elastic properties in all directions.

Homogeneous

A property of a material in which the composition material exhibits elastic properties in one direction different from that in perpendicular direction.

Orthotropic

Which of the following describes the location of an earthquake besides epicenter.

Focal depth

Seismometer measures?

Components of ground motion

A Richter Scale measures _________ of an earthquake.

Magnitude

Which of the following comprises the bulk volume of concrete?

Aggregates

Which of the following tests determines the consistency of concrete?

Slump test

The most important factor in concrete mix.

Water-cement ratio

A material condition that causes it to deform permanently even due to slight increase of stress.

Yielding

Fracture caused when a material is subjected to repeated cycles of stress or strain.

Fatigue

When a material is loaded over a long period, it causes it to deform continuously until fracture.

Creep

Refers to the lateral displacement of one level relative to the level above or below.

Storey drift

Occurs when the structure’s center of mass does not coincide with its center of rigidity.

Torsional shear stress

A material condition that causes it to deform permanently even due to slight increase in stress.

Yielding

Fracture caused when a material is subjected to repeated cycles of stress or strain.

Fatigue

When a material is loaded over a long period, it causes it to deform continuously until fracture.

Creep

The stress at failure

Rupture strength

The highest ordinate in a stress-strain diagram.

Ultimate strength

The material will have an appreciable elongation or yielding without corresponding increase in load.

Yield strength

A structure is said to be if, when all its reactions are removed, it does not undergo any change of shape.

internally stable

A structure that changes its shape after the removal of the supports is classified as

internally unstable

When the number of reactions is less than 3, the structure is said to be

statically unstable

Structures with reactions that are not arranged to provide geometric stability and are either parallel or concurrent are denoted as

geometrically unstable externally

Weekly Test 1

ユーザ名非公開 · 50問 · 13日前

Weekly Test 1