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?

A. Our derrick has been out of use for a long time.
B. Our heavy derrick has been out of use for a long time.
C. Our crane has been out of use for a long time.
D. Our winch has been out of use for a long time.

A. Don’t shift the guy as you like.
B. Don’t shift the stay as you like.
C. Don’t move the derrick as you like.
D. Don’t move the crane as you like.

A. Lower the derrick, please.
B. Top the derrick, please.
C. Swing the derrick, please.
D. Adjust the derrick, please.

A. When the derrick is stopped, the guy must be stowed.
B. When the derrick is stopped, the guy must be topped.
C. When the derrick is stopped, the guy must be lowered.
D. When the guy is stopped, the derrick must be stowed.

A. As an officer on duty, you must know how to adjust derricks.
B. As a sailor on duty, you must know how to adjust derricks.
C. As a sailor on duty, you must know how to operate cranes.
D. As an officer on duty, you must know how to operate cranes.

A. Many ships have two derricks at each hatch.
B. Many ships have two winches at each hatch.
C. Many ships have two derricks and two winches at each hatch.
D. Many ships have two derricks and two winches at each hatch cover.

A. Heavy derrick is used for lifting large heavy cargo.
B. Derrick is used for lifting large heavy cargo.
C. Heavy derrick is used for lifting dry bulk cargo.
D. Derrick is used for lifting dry bulk cargo.

A. The ship needs loading.
B. The ship needs discharging.
C. The ship needs unloading.
D. The ship needs loading and discharging.