Final answer:
An auditor would most likely include a question about the process for timely payment of interest on notes in an internal control questionnaire for notes payable.
Step-by-step explanation:
In an internal control questionnaire for notes payable, an auditor would most likely include the following question: Is there a process for timely payment of interest on notes? This question focuses on the company's ability to meet its financial obligations by ensuring that interest on notes is paid on time. It helps the auditor assess the effectiveness of the company's internal controls related to the timely payment of interest.
Although the other questions relate to notes payable, they may not directly address internal control procedures. The question about detecting unauthorized note issuances may fall under the internal control questionnaire for general cash disbursements. The question about the revision of note issuance policies may be relevant for assessing the company's risk management practices, but it may not specifically pertain to internal control over notes payable.