USCG Exam PracticeDeck machinery and ground tackle
A windlass motor with hydraulic transmission must meet which minimum duty cycle under 46 CFR §111.25-15?
- A. One-fourth hour at full load
- B. One-half hour at full load
- ✓ Half hour idle pump operation, followed by a short period of full load operationCorrect
- D. Continuous operation at 15 percent load followed by one hour at full load
Why C is correct
Table 111.25-15 specifies that a windlass with hydraulic transmission must be rated for half hour idle pump operation followed by a short period of full load operation. This differs from the direct acting windlass (one-fourth hour) and from the steering gear indirect drive rating (continuous at 15 percent load followed by one hour at full load).
Cited:46 CFR §111.25-15