(a)Briefly explain TWO reasons to conduct Risk Assessment.

(b)Two workers operate using a cross-cut saw machine. Their job scope is to load the wood panels onto the machine, the machine cuts the wood and then they have to unload the cut wood. They are also required to repair and maintain the machine as well as to change the blades of the machine if necessary. Based on this information, perform the risk assessment for the work
processes.
Your discussion should include the following aspects; 

1. likelihood
2.  severity
3.  risk 
4. recommended control measures.