For a given weight of cargo, the stress on...

Question 1 / 2066636ee728f7522a1c517ca4

Question 1 of 2066636ee728f7522a1c517ca4

For a given weight of cargo, the stress on the heel block of a cargo boom __________.

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Question 1 of 20

66636ee728f7522a1c517ca4

For a given weight of cargo, the stress on the heel block of a cargo boom __________.

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🔍 Key Concepts

• Mechanical advantage and line doubling in cargo runners • How boom angle and position of the load affect block loading • Difference between thrust along the boom and load on the heel block

💭 Think About

• When you double up a cargo runner, what happens to the load in each part of the line, and what does that do to the load on the block attached to the boom? • As the boom is topped (raised to a steeper angle), does the vertical and horizontal component of the load at the heel block increase or decrease? • Is the stress on the heel block more closely related to the direct line pull of the runner, or to the axial (along-the-boom) thrust forces?

✅ Before You Answer

• Sketch the boom, the heel block, and the cargo runner, and resolve the vertical and horizontal components of the forces at the heel. • Consider whether mechanical advantage increases or decreases the load in the block itself, not just on the hook. • Verify which option confuses thrust along the boom with the reaction at the heel block — that one is likely incorrect.

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Question 1 of 20

For a given weight of cargo, the stress on the heel block of a cargo boom __________.

increases as the cargo closes the head while hoisting

increases if the cargo runner is doubled up

is determined by the thrust stresses on the boom

decreases as the boom is topped to a greater angle

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Question 1 / 2066636ee728f7522a1c517ca4

Question 1 of 2066636ee728f7522a1c517ca4

For a given weight of cargo, the stress on the heel block of a cargo boom __________.

Back

Question 1 of 20

66636ee728f7522a1c517ca4

For a given weight of cargo, the stress on the heel block of a cargo boom __________.

No comments yet

Be the first to share your thoughts!

If the question has a related picture, it will appear here.

🔍 Key Concepts

💭 Think About

✅ Before You Answer

👋 Hi! I'm Genie, your AI study assistant. How can I help you with this question?

Quick actions

— No credit card needed