🔍 Key Concepts

• Difference between hoisting and luffing on a crane • What part of the crane actually goes up and down vs. what swings or changes angle • Normal function of a cargo block in shipboard cargo gear

💭 Think About

• First, decide: which motion controls the VERTICAL movement of the load (up and down)? • Next, decide: which motion controls the ANGLE of the jib/boom (raising/lowering the arm of the crane)? • Then, check each option against your understanding of which winch (hoisting vs. luffing) does which job.

✅ Before You Answer

• Be clear what the hoisting winch does in typical crane terminology • Be clear what the luffing winch does in typical crane terminology • Verify which option, if any, mis-matches the motion (cargo block vs. jib) with the type of winch (hoisting vs. luffing).