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Boilermaking Safety Questions And Answers With 100% Correct Answers
Byproducts of combustion which build up inside a boiler during operation. This residue can build up in 
large quantities and can become a hazard during maintenance operations should it break loose and fall. - 
Combustion residue 
A boilermaker working at extreme heights must follow safety precautions not only to prevent falls but 
also to prevent causing ________? - Injury to personnel working below from falling 
A protective sheet metal covering? - Lagging 
A material that maintains its strengt...