🔍 Key Concepts

• Tandem working arrangement of pedestal cranes (two cranes working together on one load) • Difference between general advantages of shipboard cranes and the specific advantage of tandem operation • When shore assistance is or is not needed for heavy lifts

💭 Think About

• Ask which option describes something you can only (or mainly) do because two cranes work together on one lift, not just because you have cranes at all • Consider which choice is about increased lifting capability, versus routine operations you could already perform with a single crane • Think about why a ship would be designed for tandem crane use instead of just one bigger crane—what problem does that solve?

✅ Before You Answer

• Identify which choices describe basic crane functions (any crane could do) and which describe a special benefit of tandem operation • Check which option is directly related to handling heavier cargo than a single crane’s safe working load (SWL) • Before picking an answer, be sure you can explain in your own words what makes tandem operation different from normal single‑crane cargo work