Most of the candidates who attempted this question did not give the required response.

Candidates were expected to list two types of mortice and tenon joint that can be used at X in the given sketch.

The expected response is given below:

(a)       haunched mortise and tenon joint;
                        (b)       blind/stud mortise and tenon joint;
                        (c)        open mortise and tenon joint;         
                        (d)       through mortise and tenon joint.