USCG Exam PracticePumps, valves, and piping systems
Under 46 CFR §56.01-10, what specific pump performance data must appear on piping diagrams submitted for approval for firemain and foam systems, unless pump characteristic curves are submitted?
- ✓ Rated capacity and head at rated capacity, shutoff head, and head at 150 percent rated capacityCorrect
- B. Net positive suction head required and impeller diameter only
- C. Brake horsepower at rated capacity and motor full-load amperage only
- D. Rated capacity, shutoff head, and minimum continuous stable flow only
Why A is correct
46 CFR §56.01-10(d)(2) states that if pump characteristic curves are not submitted, the drawing must show rated capacity and head at rated capacity, shutoff head, and head at 150 percent rated capacity. Net positive suction head, brake horsepower, and minimum continuous stable flow are not listed as substitutes.
Cited:46 CFR §56.01-10