A sign of thunderstorm development is a cumulus cloud（）.

A semisubmersible rig under tow should be ballasted down if（）.

A signal indicating Greenwich mean time would be preceded with（）.

A shipmate suffers a heart attack and stops breathing. You must（）.

A sail hook is used for（）.

A schooner is a fore-and-aft rigged vessel with（）.

A seaman assaults the Second Mate and injures him with a beer bottle while the ship is at sea. The incident is logged in the Official Logbook. In subsequent suspension and revocation proceedings against the seaman，according to the regulations，（）.

A single barometric pressure reading of 28.60 indicates（）.

A vessel loads 5000 tons of manganese ore. The railroad cars that brought the ore to the vessel were previously loaded with iron ore so the ore is contaminated. The agent requests the Master to sign a Clean Bill of Lading and in return the shipper will give him a Letter of Indemnity. What is the best procedure to follow? （）

Fearing damage from either or both of the above incidents，the Master now（）me this note of protest，reserving to himself the right to extend same at time and place convenient．