Section $1$: Simple Structural Systems $[40$ marks$]$: In this section, students will analyse four different

structural systems consisting with varying support reactions. For each system, students are required to:

Draw the Free Body Diagram $($FBD$)$ and identify the type $($e$.$g$.$ hinge, roller etc.$)$ and number of

support reactions in the system.

Determine the resulting degrees of freedom for each system and specify which types of motion

are prevented and which ones are allowed. Determine whether the structures are statically

determinate or indeterminate. Students will need to demonstrate their understanding of support

reactions and their implications on structural behaviour.

System $1$: