You are told a cargo hold carrying wood pellets has been shut for three days. The last test through the sampling point read 20.9% oxygen yesterday. What should you assume about the hold today?

A. It is safe to enter because the oxygen reading was normal yesterday

B. It must be treated as an enclosed space that may be oxygen-deficient, and nobody enters without a permit and breathing apparatus

C. It is safe to enter for a few minutes if you hold your breath

D. It is safe if the hatch has been open for an hour

A. Nothing — a test lift can proceed immediately after repairs

B. The area within the grab's swing radius should be cleared of personnel before the lift

C. Testing should wait until cargo operations begin

D. Only the crane operator needs to be aware the lift is happening

A. Only the weather forecast for the next watch

B. The lunch schedule for the deck team

C. Who must remain clear of the exclusion zone while the lift takes place

D. The cargo manifest for the next port

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