USCG Exam PracticePumps, valves, and piping systems
When submitting piping diagrams for approval under 46 CFR §56.01-10, which specific pump performance data must appear on diagrams for fire main and foam systems if pump characteristic curves are not submitted?
- ✓ Rated capacity, shutoff head, and head at 150 percent rated capacityCorrect
- B. Rated capacity, net positive suction head required, and shutoff head
- C. Shutoff head, efficiency at rated capacity, and brake horsepower
- D. Rated capacity, minimum flow, and head at 200 percent rated capacity
Why A is correct
46 CFR §56.01-10(d)(2) specifies that if pump characteristic curves are not submitted for fire main and foam system pumps, the diagram must show rated capacity and head at rated capacity, shutoff head, and head at 150 percent rated capacity. Net positive suction head, efficiency, and brake horsepower are not listed as substitutes.
Cited:46 CFR §56.01-10