Mechanical Engineering Fundamentals Quiz

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Questions and Answers

What property of a material does Young's Modulus (E) represent?

Stiffness (correct)
Resistance to volume change
Ratio of lateral strain to longitudinal strain
Response to shear deformation

Which formula is used to predict the critical buckling load of a slender column?

Shear Modulus Formula
Bulk Modulus Formula
Poisson's Ratio
Euler's Buckling Formula (correct)

What is the measure of deformation in a material relative to its original size?

Bending Moment
Strain (correct)
Poisson's Ratio
Stress

What is the internal resistance of a material to deformation typically measured in force per unit area?

Stress (C) Signup and view all the answers

Which method for solving equilibrium problems considers the virtual displacement of a structure?

Virtual Work (D) Signup and view all the answers

What is the difference between ultimate strength and yield strength?

Ultimate strength is the maximum stress a material can withstand before failure, while yield strength is the stress at which a material undergoes a specified amount of plastic deformation. (D) Signup and view all the answers

Which term describes the ability of a material to absorb energy elastically up to the elastic limit?

Modulus of Resilience (C) Signup and view all the answers

What is the primary difference between ductility and brittleness?

Ductility refers to the ability of a material to undergo significant plastic deformation before rupture, while brittleness is the tendency of a material to fracture without significant plastic deformation. (D) Signup and view all the answers

What does Hooke's Law describe?

The linear relationship between stress and strain in the elastic region of a material. (B) Signup and view all the answers

What is meant by the factor of safety in engineering design?

A numerical factor by which the design stress is reduced to ensure the safety of a structure or component. (D) Signup and view all the answers

Flashcards

Young's Modulus

Material's resistance to deformation under stress.

Euler's Buckling Formula

Predicts the critical buckling load for slender columns.