If you are a food processor, why do you need to know the parts of the equipment, tool and utensil and their functions? a. to appreciate the usefulness of a particular device b. to be able to correctly operate/manipulate a tool, equipment or utensil c. to be able to do some simple repairs on them d. to easily determine if a part is missing 4. If you are going to pack processed foods in tin cans, why do you need to seal it with a can sealer? a. cans cannot be sealed manually b. tin cans are difficult to seal c. to properly seal them d. a can sealer is the appropriate equipment for attaching the cover to the body of a tin can with is first and second operation rolls