The PMI-1 (480hr) on a H-60L is __ in working days.

• A. 20
• B. 25
• C. 30
• D. 35

Answer: (C)

The key idea is converting the interval from hours to working days by using how long a typical productive workday is in that maintenance setting. For PMI-1 (480 hours) on the H-60L, a working day is treated as 16 hours (two 8-hour shifts). So 480 hours ÷ 16 hours per day = 30 working days. This reflects planning around a longer, two-shift day rather than a standard 8-hour calendar day. If you used a different daily hour assumption, you’d get a different number (for example, 8 hours per day would give 60 days, 12 hours per day would give 40 days), but the standard context here yields 30 days.