Trades, Transport and Equipment Operators and Related Occupations

B 7371 Crane Operators Crane operators operates cranes or draglines to lift, move,position or place machinery, equipment and other largeobjects at construction or industrial sites, ports, railways yardsand surface mines.B 7372 Blasters Surface Mining, Quarryingand ConstructionB 7372 Drillers Surface Mining, Quarryingand ConstructionBlasters in this unit group fill blast holes with explosives anddetonate explosives to dislodge coal, ore and rock or todemolish structures.Drillers operate mobile drilling machines to bore blast holes inopen-pit mines and quarries and to bore holes for blasting andfor building foundations.C 7521 Heavy Equipment Operators(Except Crane)D 7611 Construction trades helpers andlabourersHeavy equipment operators operate heavy equipment used inthe construction and maintenance of roads, bridges, airports,gas and oil pipelines, tunnels, buildings and other structures;in surface mining and quarrying activities; and in materialhandling work.Construction trades helpers and labourers assist skilledtradepersons and perform labouring activities at constructionsites, in quarries and surface mines.D 7611 Scaffold erector Construction trades helpers and labourers assist skilledtradespersons and perform labouring activities at constructionsites, in quarries and in surface mines.