Understanding Creep, Fatigue and Corrosion

What is the primary cause of creep in materials?

• High humidity

• High temperature

• Low pressure

• Low temperature

Which of the following is a common effect of fatigue on materials?

• Instantaneous fracture

• Gradual deformation

• Sudden failure after repeated stress

• Corrosion

What is the main factor that accelerates corrosion in metals?

• Dry air

• High temperature

• Moisture

• Low pressure

Which of the following materials is most susceptible to creep?

• Wood

• Plastic

• Steel

• Lead

Fatigue in materials is most likely to occur under which condition?

• Constant load

• Repeated loading and unloading

• High temperature

• Low humidity

Which of the following is a method to prevent corrosion?

• Increasing temperature

• Applying a protective coating

• Reducing humidity

• Using heavier materials

What is the unit of measurement for stress in materials?

• Newton

• Pascal

• Joule

• Watt

Which of the following is a common test for fatigue in materials?

• Tensile test

• Impact test

• Rotating bending test

• Hardness test

What is the term for the gradual deformation of a material under constant stress?

• Fatigue

• Creep

• Corrosion

• Fracture

Which of the following is a common sign of corrosion in metals?

• Shiny surface

• Rust formation

• Increased weight

• Decreased temperature