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

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.

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.