单选题A man aboard a vessel，signaling by raising and lowering his outstretched arms to each side，is indicating（）.A danger，stay awayB all is clear，it is safe to passC the vessel is anchoredD a distress signal

Personnel who are moving or handling material aboard ship should NOT follow which of the listed practices?

A.Signaling that all personnel are clear before lifting or lowering material

B.Examining material for sharp edges or protruding points before handling

C.Closing, tagging or securing valves that permit entrance of steam, water, or air into a fitting or other equipment

D.Throwing materials from high places to the deck

Every injury aboard a commercial vessel must be reported to the ______.

A.MSA

B.vessel owner or owner's agent

C.Occupational Safety and Health Administration

D.National Fisheries Service

The best way to lift many small articles aboard your vessel is with a______.

A.pallet

B.barrel hook

C.spreader

D.snotter

A bonding cable should be connected for cargo operations aboard a tank vessel as soon as the ______．

A.Cargo has been loaded or discharged

B.Cargo hose is connected

C.Cargo pumps are started

D.Vessel is ready to handle cargo

Maritime Declaration of Health is generally prepared by the Master ______．

A.when his vessel is arriving at a foreign port

B.when his vessel is leaving a foreign port

C.after his vessel has left a foreign port

D.after his vessel has arrived at a port

If an alien stowaway is discovered aboard your vessel，his name must be placed on the ______.

A.Alien Crew List

B.Crew List

C.Passenger List

D.separate Passenger List marked stowaways

If a fixed foam firefighting system on a ship is not of the premix type，a sample of the foam liquid must be tested by ______.

A.a Coast Guard inspection officer

B.the safety man aboard the unit

C.the designated person in charge of the unit

D.the manufacturer or his authorized representative

Now that Bob is sharing child-raising and ______ tasks with his wife.

A、household

B、houseful

C、house

D、householder

You are on watch aboard a vessel heading NW，with the wind from dead ahead，in heavy seas．You notice a man fall overboard from the starboard bow．Which action would NOT be appropriate ________．

A.Hard right rudder

B.Throw a lifebuoy to the man，if possible

C.Send a man aloft

D.Get the port boat ready

A heated bulkhead has the effect on a hygroscopic commodity of ______.

A.causing moisture to accumulate against the bulkhead

B.lowering the vapor pressure of the commodity

C.lowering the dew point of the air

D.raising the vapor pressure of the commodity