Salvage and Overhaul No. 1 Questions taken from Jones & Bartlett Fundamentals of Fire Fighter Skills (3rd Edition) Progress Indicator: Question 1 of 20 1.  Which is NOT correct about overhaul operations? p. 633 Choices: When opening walls, only remove the outer coverings If complete overhaul cannot be completed, post signs before the team leaves overnight A safety officer should always be present to note hazards A "hydraulic overhaul" may be ordered if fire damages the structural integrity of a building