A.5% or less B.10% or less C.15% or less D.20% or less
A.in the ends of each tank B.in the expansion trunk of each tank C.above the weather deck D.there are no requirements in the regulation
A.Combustible gas indicator B.Vapor indicator C.Atmosphere analyzer kit D.None of the above
A.in open air B.inside cabins C.in machinery space D.underwater
A.In open air B.Inside cabins near the overhead C.In the machinery space near the engine air intake D.Underwater
A.keeps sparks from falling into an open tank B.secures covers on ullage openings C.prevents sparks from getting out of an engine's exhaust system D.grounds static electricity
A.settle near the bottom of the bilge B.settle near the top of the bilge C.settle evenly throughout all levels of the bilge by mixing with air D.disperse to atmosphere
A.they generate heat B.they emit hydrogen C.of the toxic fumes they emit D.they recharge faster in a well ventilated space
A.variable B.the same C.lighter D.heavier
A.odor B.color C.pressure D.density
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