EMD Topic 1

This type of design depends upon mathematical formulae of principle of mechanics.

• Rational design

• Optimum design

• Industrial design

• Empirical design

What type of stress is a combination of tensile and compressive stresses, leading to a change in the shape of the material without any change in its volume?

• Tensile stress

• Bending stress

• Shear stress

• Compressive stress

What type of stress is also known as "pulling" stress and occurs when forces act to elongate or stretch the material?

• Tensile stress

• Torsional stress

• Compressive stress

• Shear stress

This type of design depends upon empirical formulae based on practice and past experience.

answer choices

• Optimum design.

• Industrial design

• Empirical design

• Rational design

It is the best design for the given objective function under the specified constraints. It may be achieved by minimizing the undesirable effects

• Rational design

• Optimum design

• Empirical design

• Industrial design

________ is the ability of a material to resist deformation under stress

• Stiffness

• Plasticity

• Elasticity

• Strength

________ is the property of a material enabling it to be drawn into wire with the application of a tensile force.

• Ductility

• Brittleness

• Elasticity

• Plasticity

What type of stress occurs when two forces act on an element in the same direction, pushing the material together?

• Torsional stress

• Shear stress

• Tensile stress

• Compressive stress

________ is property of a material which retains the deformation produced under load permanently.

• Ductility

• Brittleness

• Elasticity

• Plasticity

Find the diameter of the link stock, if the permissible tensile stress in the link material is not to exceed 75 MPa Link is caring a load of 50KN.