Deformation that occurs due to stress over a period of time is known as ____________
A. Wear resistance
B. Fatigue
C. Creep
D. Fracture
This question was posed to me in a national level competition.
This intriguing question comes from Mechanical Properties topic in division Properties of Engineering Materials of Engineering Material & Metallurgy
The correct option is C. Creep
Easiest explanation: Creep is the time-dependent deformation of the material under stress. Wear resistance, fatigue, and fracture deal with deformation under stress without a time factor, i.e. they are time-independent.