(i) Consider the plate with a horizontal crack shown in the figure below under biaxial loading. Between Mode I, II and III, what is the mode of loading endured by the crack? (2 marks) Select one or more: O Model O Mode II O Mode III (ii) Now consider the same plate but this time with an angled crack, having an angle with the horizontal as shown in the figure below, under equi-biaxial loading. What mode(s) of loading does the crack experience in this scenario? (2 marks) Select one or more: O Model O Mode II O Mode III (iii) For the same plate and the same angled crack, if the deformation is a generic biaxial deformation (as opposed to the specific equi-biaxial deformation in the previous question), what mode(s) of loading would the crack experience then? (2 marks) Select one or more: O Model Mode II O Mode III