The signal man assisting the crane operator...

Question 1 of 2707066636ee728f7522a1c51892d

The signal man assisting the crane operator has his arm extended, his fingers closed, and his thumb pointing downward. This is the signal to __________.

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Question 1 of 27070

Q

The signal man assisting the crane operator has his arm extended, his fingers closed, and his thumb pointing downward. This is the signal to __________.

🔍 Key Concepts

• Standard crane hand signals used in marine cargo operations • Difference between signals for boom movement vs load (hook) movement • How thumb direction usually relates to the direction of motion

💭 Think About

• Ask yourself: is this signal telling the operator to move the hook/load straight up or down, or to change the angle/height of the boom itself? • Think about other common hand signals: which motion is usually shown with a circular arm movement, and which is shown with a fixed arm and a pointed thumb? • Visualize standing in front of a crane: if your thumb points downward, what are you most clearly indicating should move in that direction?

✅ Before You Answer

• Verify whether the described signal affects the load (hook) or the boom • Check that you are not confusing the signals for raise/lower load with raise/lower boom • Confirm that the thumb direction in standard crane signals usually matches the direction of intended travel of what is being moved