Lec 1 mcqs hard

What is the most critical factor in determining the Factor of Safety (FS) of a structure?

Which of the following represents a failure mode related to repeated stress?

What property refers to the energy required to reach the yield point of a material?

In the context of materials, what does Specific Gravity compare?

Which type of behavior is characterized by having both elastic and viscous responses?

What influences the mechanical behavior of materials according to the text?

Which type of property is related to resistance to flow and shear force?

What type of modulus is defined as the tangent to the curve near the origin?

In the stress-strain diagram, what does the elastic limit (yield point) signify?

What is the range for Poisson's Ratio in materials?

Which material has a Poisson's Ratio of approximately 0.27?

What is the Maximum stress on the stress-strain curve called?

Which modulus is defined as the line joining two points on the curve?

What does the Secant modulus represent on a stress-strain curve?

'Yielding' in the stress-strain diagram refers to what characteristic?

What is the definition of stress in the context of civil engineering?

Which units are commonly used to measure stress in civil engineering?

What is the definition of strain in the context of civil engineering?

In the stress-strain diagram, which zone exhibits recoverable deformations that spring back?

What type of material behavior is characterized by atomic bonds slipping past each other and rearranging?

What does Hooke's law describe in terms of material behavior?

Which unit is used to measure strain in the context of civil engineering?

What type of material behavior exhibits recoverable deformations?

Which of the following factors influence the response of a material to external loads?

Which type of loads can materials deform under based on the text?

Which property affects a material's resistance to fracture?

What type of failure mode is associated with repeated loading and unloading of a material?

Which property is not typically classified as a non-mechanical property of materials?

What does the factor of safety represent in engineering design?

In materials engineering, which type of load leads to sudden failure without prior warning signs?

Which of the following properties directly influences the expansion of materials with temperature changes?

What is the formula for linear coefficient of thermal expansion?

Why do stresses develop in materials due to thermal expansion and contraction?

What is an important consideration in sampling to minimize material variability?

Which device is used for indirect measurement of deformation, stress, or strain?

What is the key concept behind sustainable development?

Which organization developed the LEED building rating system?

What is the purpose of using nano-materials in civil engineering projects?

What is a major challenge in terms of waste management?