Multiple choice

The stress-strain curve for mild steel is shown in the figure given below. Choose the correct option referring to both figure and table.

  1. P - 1, Q - 2, R - 3, S - 4, T - 5, U - 6

  2. P - 3, Q - 1, R - 4, S - 2, T - 6, U - 5

  3. P - 3, Q - 4, R - 1, S - 5, T - 2, U - 6

  4. P - 4, Q - 1, R - 5, S - 2, T - 3, U - 6
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

(P) Proportionality limit : The highest stress at which stress is directly proportional to strain. (Q) Elastic limit : is the greatest stress at which the material can withstand without any measurable permanent strain after unloading. (R) Yield point/strength is the strength is the stress required to produce a small specific amount of deformation. (T) Ultimate tensile strength : is the maximum load point after it necking begins. (U) Failure point : It is the last point, after it specimen or material got fractured after necking. Stress-strain curve for mild steel.

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