Select the correct option to test your answer:
Mining Engineering
Rock Mechanics And Roof Supporting
Difficulty: Medium
"A crack will extend only when the total potential energy of the system of applied forces and material decreases or remain constant with an increase in crack length" - Who has given this concept?
More Mining Engineering Questions
In high stress zone, the shape of the shaft cross section should be
The co-efficient of friction, Kilomurg (kμ) is the
Shape factor is defined by . . . . . . . .
The disc of the prismatic compass is graduated in . . . . . . . .
With homotropal ventilation the velocity of air relative to coal is lessas compared to that of . . . . . . . .