What is the key difference between a "weathertight" door and a "watertight" door?

A. A watertight door is only used on the weather deck, while a weathertight door is used below decks

B. A watertight door prevents the passage of water in either direction under a head of water (e.g. in flooding), while a weathertight door only prevents water ingress from normal weather conditions such as spray and rain in any sea condition the ship may encounter

C. There is no difference, the terms are interchangeable

D. A weathertight door is stronger than a watertight door

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

B. Testing should wait until cargo operations begin

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

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

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

B. The lunch schedule for the deck team

C. Only the weather forecast for the next watch

D. The cargo manifest for the next port