Podcast
Questions and Answers
What is the moment of inertia of a circle of radius r?
What is the moment of inertia of a circle of radius r?
- πr²/4 (correct)
- πr²/2
- πr²/16
- πr²/64
The moment of inertia of the circle with respect to its centroidal moment of inertia is ______ times its moment of inertia with respect to the base.
The moment of inertia of the circle with respect to its centroidal moment of inertia is ______ times its moment of inertia with respect to the base.
- 5
- 2 (correct)
- 4
- 3
The moment of inertia of a rectangle with respect to the base is ______ times its moment of inertia with respect to the centroid.
The moment of inertia of a rectangle with respect to the base is ______ times its moment of inertia with respect to the centroid.
- 2
- 4 (correct)
- 5
- 3
What is the mass moment of inertia of a sphere of mass m and radius r?
What is the mass moment of inertia of a sphere of mass m and radius r?
Given a cylinder of radius r, altitude h and mass m. What is its mass moment of inertia?
Given a cylinder of radius r, altitude h and mass m. What is its mass moment of inertia?
A structure is called ______ if at least one of its individual member is a multiforce member.
A structure is called ______ if at least one of its individual member is a multiforce member.
Which of the following stresses has an area perpendicular to the force?
Which of the following stresses has an area perpendicular to the force?
Which of the following type of loadings does fatigue occurs?
Which of the following type of loadings does fatigue occurs?
It is a quantity which measures the resistance of the mass to being revolved about the line.
It is a quantity which measures the resistance of the mass to being revolved about the line.
The change in length per degree rise in temperature.
The change in length per degree rise in temperature.
Which of the following refers to the stress at failure?
Which of the following refers to the stress at failure?
If a load is applied through the centroid of a tension or compression member's section, what type of loading is it?
If a load is applied through the centroid of a tension or compression member's section, what type of loading is it?
Which of the following refers to the ratio of the unit lateral deformation to the unit longitudinal deformation?
Which of the following refers to the ratio of the unit lateral deformation to the unit longitudinal deformation?
What is the ratio of stress to strain below the proportional limit?
What is the ratio of stress to strain below the proportional limit?
In the linear elastic region of the stress-strain diagram, what do you call the slope of the curve?
In the linear elastic region of the stress-strain diagram, what do you call the slope of the curve?
In bending of a rectangular beam due to axial loading, where is the location of maximum shear stress?
In bending of a rectangular beam due to axial loading, where is the location of maximum shear stress?
To prevent translation while permitting rotation, a structure must be added with:
To prevent translation while permitting rotation, a structure must be added with:
What is the smallest part of a compound that still retains the properties of that compound?
What is the smallest part of a compound that still retains the properties of that compound?
When a solid has a crystalline structure, the atoms arranged in repeating structures called ______
When a solid has a crystalline structure, the atoms arranged in repeating structures called ______
What type of bonding refers to the sharing of electrons?
What type of bonding refers to the sharing of electrons?
What refers to a crystal imperfection characterized by regions of severe atomic misfit where atoms are not properly surrounded by neighbor atoms?
What refers to a crystal imperfection characterized by regions of severe atomic misfit where atoms are not properly surrounded by neighbor atoms?
What do you call metals reinforced by ceramics or other materials, usually in fiber form?
What do you call metals reinforced by ceramics or other materials, usually in fiber form?
What is the usual valence of nonmetallic elements?
What is the usual valence of nonmetallic elements?
What mechanical property of a material refers to the nominal stress at fracture in a tension test at constant load and constant temperature?
What mechanical property of a material refers to the nominal stress at fracture in a tension test at constant load and constant temperature?
What mechanical property of a material refers to the resistance to plastic deformation?
What mechanical property of a material refers to the resistance to plastic deformation?
What typical penetrator is used in Brinell hardness test?
What typical penetrator is used in Brinell hardness test?
What parameter is defined as the temperature at which the toughness of the material drops below some predetermined value, usually 15 ft-lb?
What parameter is defined as the temperature at which the toughness of the material drops below some predetermined value, usually 15 ft-lb?
What is obtained by repeatedly loading a specimen at given stress levels until it fails?
What is obtained by repeatedly loading a specimen at given stress levels until it fails?
What dimensional property of a material refers to the deviation from edge straightness?
What dimensional property of a material refers to the deviation from edge straightness?
What is the maximum stress below which a material can theoretically endure an infinite number of stress cycles?
What is the maximum stress below which a material can theoretically endure an infinite number of stress cycles?
What is a substance that attracts piece of iron?
What is a substance that attracts piece of iron?
Which of the following is a natural magnet?
Which of the following is a natural magnet?
Which of the following materials has permeability slightly less than that of free space?
Which of the following materials has permeability slightly less than that of free space?
What materials has permeabilities slighter than that of free space?
What materials has permeabilities slighter than that of free space?
Which of the following materials have very high permeabilities?
Which of the following materials have very high permeabilities?
Low-quality steels with an M suffix on the designation intended for nonstructural application is classified as ______
Low-quality steels with an M suffix on the designation intended for nonstructural application is classified as ______
The use of acids to remove oxides and scale on hot worked steels is known as ______
The use of acids to remove oxides and scale on hot worked steels is known as ______
The purpose of molybdenum in steel alloying is to?
The purpose of molybdenum in steel alloying is to?
Indicate the false statement.
Indicate the false statement.
What does AISI stands for?
What does AISI stands for?
The following statements are true except one. Which one?
The following statements are true except one. Which one?
Which of the following is a requirement for hardening a steel?
Which of the following is a requirement for hardening a steel?
What field of study encompasses the procurement and production of metals?
What field of study encompasses the procurement and production of metals?
What do you call earth and stone missed with the iron oxides?
What do you call earth and stone missed with the iron oxides?
What is a coal that has been previously burned in an oxygen-poor environment?
What is a coal that has been previously burned in an oxygen-poor environment?
What is the most common alloying ingredient in copper?
What is the most common alloying ingredient in copper?
What do you call the removal of zinc from brasses?
What do you call the removal of zinc from brasses?
What is the scaling off of a surface in flakes or layers as the result of corrosion?
What is the scaling off of a surface in flakes or layers as the result of corrosion?
What corrosion occurs under organic coatings on metals as fine, wavy hairlines?
What corrosion occurs under organic coatings on metals as fine, wavy hairlines?
What refers to the deterioration of material by oscillatory relative motion of small amplitude (20 to 100 µm) between two solid surfaces in a corrosive environment?
What refers to the deterioration of material by oscillatory relative motion of small amplitude (20 to 100 µm) between two solid surfaces in a corrosive environment?
Indicate the false statement about corrosion.
Indicate the false statement about corrosion.
Steel is an alloy of iron and carbon with limits on the amount of carbon to less than ______ percent.
Steel is an alloy of iron and carbon with limits on the amount of carbon to less than ______ percent.
What refers to the application of any process whereby the surface of steel is altered so that it will become hard?
What refers to the application of any process whereby the surface of steel is altered so that it will become hard?
What refers to the ability of steel to be hardened through to its center in large section?
What refers to the ability of steel to be hardened through to its center in large section?
What is the equilibrium temperature of transformation of austenite to pearlite?
What is the equilibrium temperature of transformation of austenite to pearlite?
Flashcards
Normal stress
Normal stress
Stress acting perpendicular to a surface.
Shear stress
Shear stress
Stress acting parallel to a surface.
Moment of inertia (circle)
Moment of inertia (circle)
Resistance to rotational motion for a circle.
Moment of inertia (rectangle)
Moment of inertia (rectangle)
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Mass moment of inertia (sphere)
Mass moment of inertia (sphere)
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Mass moment of inertia (cylinder)
Mass moment of inertia (cylinder)
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Truss
Truss
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Frame
Frame
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Strain
Strain
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Stress
Stress
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Fatigue
Fatigue
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Axial loading
Axial loading
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Eccentric loading
Eccentric loading
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Poisson's Ratio
Poisson's Ratio
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Hooke's Law
Hooke's Law
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Modulus of Elasticity
Modulus of Elasticity
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Ultimate strength
Ultimate strength
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Yield point
Yield point
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Proportional Limit
Proportional Limit
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Roller support
Roller support
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Cohesion
Cohesion
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Decomposition reaction
Decomposition reaction
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Thermocouple
Thermocouple
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Neutral axis
Neutral axis
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Corrosion
Corrosion
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