Among the equipment included in the DEEP DRILLER lightweight are the loading hoses, traveling block in the lowest position, anchors, mooring chain, all machinery with liquids to normal operating level, and __________.
• Lightweight condition definition for mobile offshore drilling units (MODUs) like DEEP DRILLER • What items are permanently part of the unit versus consumables or variable loads • How machinery liquids and fixed equipment are treated in stability/lightweight calculations
• Look at each choice and ask: Is this something that is always on board in a fixed, standard amount, or does it change regularly during operations? • Which items would a naval architect include to define the basic hull and permanently installed equipment weight, before adding variables like fuel, provisions, and personnel? • Think about how stability calculations separate lightweight from variable loads such as fuel, stores, and people.
• Verify which of the options is clearly a permanent, non‑consumable part of the structure or fixed equipment. • Eliminate any items that are consumables (used up over time) or that vary significantly from voyage to voyage. • Ask whether the item would reasonably be included when measuring the unit in an almost "empty but fully equipped" condition (light ship), with no cargo, no variable stores, and no persons.
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