USCG USCG Safety Deck
Set 3 • Question #86 of 105
Launch Interactive Practice Room You are towing a 1000 gross ton gasoline tank barge. The barge is NOT gas free. Regulations say that the cargo tank hatches, ullage holes, and Butterworth plates on the barge may remain open without flame screens __________.
A
without restriction
B
only while in areas of good weather
C
when under the supervision of a senior crew member on duty
✓ Correct Answer
D
only when the barge is empty
USCG NMC Regulatory Explanation
Under 46 CFR 35.30, in non-gas-free compartments on tank vessels and barges, only USCG-approved explosion-proof, self-contained, battery-operated safety lamps may be used to eliminate ignition sources in flammable atmospheres.
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