Technician a says that manufacturers have dealt with caliper brake piston corrosion by making pistons out of a phenolic resin. technician b says that even though the phenolic pistons themselves do not corrode, the cast iron bore of the caliper does corrode and rust, and can therefore cause a phenolic piston to seize in the bore. who is correct?

Which of the following statements about revision is most accurate? (a) you must compose first drafts quickly (sprint writing) and return later for editing. (b) careful writers always revise as they write. (c) revision is required for only long and complex business documents. (d) some business writers prefer to compose first drafts quickly and revise later; others prefer to revise as they go.