REVIEW 3 QUESTIONS Q1.  List the most common hand tools used to remove paint and rust from small areas. a. b. c. Q2.  How should you prepare chipped edges of paint to make ready for painting? Q3.  List the two main reasons for a bad paint job. a. b. Q4.  List the four main essential ingredients in paint. a. b. c. d. Q5.  How many coats of primer should be applied to bare metal? WHAT NOT TO PAINT N ever paint the following items: Start-stop  mechanisms  of  electrical  safety devices and control switchboards on machinery elevators Bell  pulls,  sheaves,  annunciator  chains,  and other mechanical communications devices Composition metal water ends of pumps Condenser  heads  and  outside  surfaces  of condensers made of composition metal Sprinkler piping within magazines Exposed  composition  metal  parts  of  any machinery Glands,  stems,  yokes,  toggle  gear,  and  all machined external parts of the valves Heat exchange surfaces of heating or cooling equipment Identification plates Joint faces of gaskets and packing surfaces Lubricating gear, such as oil holes, oil or grease cups, grease fittings, lubricators, and surfaces in contact with lubricating oil Lubricating oil reservoirs Machined metal surfaces (working surfaces) of reciprocating engines or pumps Metal lagging Rods, gears, universal joints, and couplings of valve operating gear Rubber elements of isolation mounts Ground plates Springs Strainers Threaded parts Zincs Working surfaces Hose and applicator nozzles Knife edges; rubber gaskets; dogs; drop bolts; wedges; and operating gear of watertight doors, hatches, and scuttles 18-14 Student Notes: