Exam frequency
60%
Difficulty
2/5
Drill questions
53
Authoritative sources
Every answer on this topic traces back to the public rule corpus below.
Source excerpts
NAVEDTRA 14075 §3-2
NAVEDTRA 14075 §3-2 — Fuel-oil systems, service, and injection timing The fuel-oil system delivers clean, correctly conditioned fuel from the storage tanks to the injectors. Fuel is drawn from bunker (storage) tanks, may be transferred to settling tanks where water and heavy sediment settle out and are drained, and then to service (day) tanks that feed the engine. Heavier fuels are heated to bring their viscosity down to the value needed for good pumping and atomization. From the service tank a supply pump sends the fuel through duplex filters (arranged so one can be cleaned while the other stays in service) to the injection equipment; a water separator removes free water, which otherwise corrodes injectors and disrupts combustion. Clean fuel is essential because the injection plunger and…
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Under 46 CFR §28.335, nonmetallic flexible hose used in a fuel line must NOT exceed what maximum length?
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