1.  Consider ergonomic hazards associated with the operation of pneumatic impact wrenches in a vehicle maintenance facility. What could you, as part of the ergonomics team, provide in the way of protection against the work-related musculoskeletal disorders (WMSDs) that might be associated with the use of such a tool? Include supporting evidence as part of your discussion. (200 words) 
2.  Describe one or more potential solutions for an employee who is experiencing the onset of back pain after working at his or her workstation that primarily requires the employee to work in a seated position. Include supporting evidence as part of your discussion. 200 words)
3.  Describe the ergonomic risk factors associated with a sharp edge on a work bench. Include supporting evidence as part of your discussion. (75 words)
4.  
Describe hand-arm vibrations (HAVS); what are the long-term issues an employee might have if vibration sources are not corrected? (75 words)