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As the officer in charge you have to direct a dual crane lifting operation with stability pontoons engaged. Three angles should be observed to check vessel’s stability. What are their safety limits?

Question

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 As the officer in charge you have to direct a dual crane lifting operation with stability pontoons engaged. Three angles should be observed to check vessel’s stability. What are their safety limits?

Answer

The heeling angle is within 1°, hoisting angle is less than 3°, and luffing angle is above the lower limit referring to SWL.

Answer

The heeling and hoisting angles are less than within 3°, and luffing angle is under the lower limit referring to SWL.

Answer

The heeling and hoisting angles are more than within 3°, and luffing angle is above the lower limit referring to SWL.

Answer

The heeling angle within 3°, hoisting angle equals 0°, and luffing angle is under the lower limit referring to SWL.

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Choose the correct option As the officer in charge you have to direct a dual c...

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