If a duplicating machine is used to reproduce a track warrant, what action is not required?

• A. Must
• B. Do not
• C. Should
• D. May

Answer: (B)

Understanding this question comes from reading how modal verbs are used in track-warrant procedures. Must means you’re required to do something, should signals a recommended action, and may indicates an option. Do not signals a prohibition.

If a duplicating machine is used to reproduce a track warrant, there isn’t a rule that you must refrain from duplicating. In other words, there is no prohibition that you must avoid making duplicates, so the action described by the “do not” concept isn’t required. The duplication process itself is permitted under procedure, with the usual expectations that the duplicate be a faithful reproduction and handled according to the applicable controls. The other options reflect actions that are indeed required or allowed (must for mandatory steps, may for optional steps, should for recommended steps).