Mining Engineering > GATE 2017 > Rock Mechanics
Let σ1 and σ3 are major and minor principal stresses respectively. The equation σ1=f(σ3) denotes the failure envelop of a rock as shown in the figure. Match the zones (P, Q. R and S) with the legend code.
A
P-1, Q-2, R-4, S-3
B
P-3, Q-1, R-4, S-2
C
P-3. Q-1, R-2, S-4
D
P-1. Q-4. R-3, S-2

Correct : b

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