שאלה | Characteristics of tensile stress-strain behavior for fibers, plastics & elastomers - distinction between. Which of the following statements is not correct? (Choose from the following four possibilities)

Characteristics of tensile stress-strain behavior for fibers, plastics & elastomers - distinction between. Which of the following statements is not correct? (Choose from the following four possibilities)

		Both the brittle plastic and fibers exhibit a steep slope (high modulus), but fibers cangenerally sustain greater stress before breaking.
		Non brittle plastics can have a yield point beyond which the molecules begin to untangleand flow over one another, and further elongation beyond the yield point is irreversible.
		Highly crystalline polymers exhibit little change in morphology on drawing (stretching)and break soon after the yield point.
		Elastomers have a low modulus initially, but once in the stretched state the modulusincreases sharply due induced chemical crosslinks by oxygen in the air.