Practice question Per MUTCD 2003 Table 6C-3, a shifting taper should be about which length? At least L0.33 L30 ft regardless of speed0.5 L Answer: D — 0.5 L The correct answer is shown above. Try the full quiz for additional practice. Practice more: NM CID GA-5 Practice Questions - New Mexico CID GA-5 Highway Signs and Guard Rails Examination Exam →