------------- Secondary (high) school graduation certificate
Work site environment
------------------------- At heights
Dusty
Hot
Noisy
Outdoors
Tasks
--------- Clean and prepare surfaces
Cut and install metal corner beads to protect exterior corners
Measure, cut, fit and install drywall sheets
Position and secure sheets to metal or wooden studs or joists
Tape over joints using taping machine and embed tape in compound
Prepare wall and ceiling layouts
Work at heights, on scaffolding or swing stages