🔍 Key Concepts

• Use the loading diagram D036DG: vertical axis is above deck cargo (long tons), horizontal axis is below deck tonnage (long tons). • Follow the printed USCG stability loading instructions on the diagram: draw a vertical line from the below‑deck load and a horizontal line from the above‑deck load to the limiting curve. • Remember that the allowed deck cargo changes when you increase the below‑deck tonnage; you must use the new below‑deck value after adding the liquid mud.

💭 Think About

• First, calculate the new total below‑deck tonnage after loading the 220 tons of liquid mud. What number on the bottom axis does that give you? • From that new below‑deck value, how do you use the diagram to find the maximum permitted deck cargo at that condition? • Once you know the maximum permitted deck cargo from the diagram, how can you use your current deck cargo (230 tons) to determine how much more can be loaded?

✅ Before You Answer

• Confirm the diagram units are long tons for both axes and that they match the units used in the question. • Be sure you are reading the value where your construction lines meet the limiting curve between SAFE LOADING and UNSAFE LOADING, not inside the zone. • After reading the maximum allowable deck cargo from the diagram at the new below‑deck tonnage, subtract the 230 tons already on deck to find the remaining capacity and compare that to the answer choices.