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Understanding Stress and Beams

Authored by Dr.D. VIGNESHKUMAR

Construction

University

Used 2+ times

Understanding Stress and Beams
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25 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is Hooke's Law and how does it relate to stress and strain?

Hooke's Law describes the relationship between force and velocity in fluids.

Hooke's Law describes the linear relationship between stress and strain in elastic materials.

Hooke's Law states that stress is proportional to temperature.

Hooke's Law applies only to plastic materials and not elastic ones.

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Define elastic limit and its significance in material science.

The elastic limit is the point where a material breaks completely.

The elastic limit is the maximum stress a material can endure without permanent deformation, significant for material selection and structural integrity.

The elastic limit refers to the temperature at which a material melts.

The elastic limit is the minimum stress required to cause a material to fracture.

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What are the different types of elastic constants?

Young's modulus, shear modulus, bulk modulus.

Tensile strength, compressive strength, flexural strength

Thermal conductivity, electrical conductivity, magnetic permeability

Viscosity, surface tension, density

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Explain the relationship between Young's modulus, shear modulus, and bulk modulus.

Young's modulus only applies to tensile stress.

Shear modulus is unrelated to material elasticity.

Bulk modulus measures thermal conductivity.

Young's modulus, shear modulus, and bulk modulus are interrelated measures of material elasticity, defined through Poisson's ratio.

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the formula for calculating stress?

Stress = Area / Force

Stress = Force + Area

Stress = Force / Area

Stress = Force * Area

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Describe the stress-strain curve and its key features.

The stress-strain curve illustrates the relationship between stress and strain in materials, featuring key regions such as elastic, yield, plastic, ultimate tensile strength, and fracture.

It represents the temperature change in materials under stress.

The curve is irrelevant in material science and engineering.

The stress-strain curve only shows the elastic region of materials.

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the difference between simple and compound bars?

Simple bars are more expensive than compound bars.

Simple bars are always longer than compound bars.

The difference is that simple bars consist of one material, whereas compound bars are made from multiple materials.

Compound bars are made from a single material only.

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