A. The SWL of the derrick is five tons. B. The SWL of the heavy derrick is six tons. C. The SWL of the derrick is six tons. D. The SWL of the crane is six tons.
A. Before leaving the harbour, all derricks must be stowed. B. After leaving the harbour, all derricks must be stowed fore and aft. C. Before leaving the harbour, all derricks must be stowed fore and aft. D. Before leaving the harbour, all heavy derricks must be stowed fore and aft.
A. Will you please swing the heavy derrick over the hatch? B. Will you please swing the derrick over the hatch? C. Will you please lower the derrick over the hatch? D. Will you please top the heavy derrick over the hatch?