A lifeboat is weight tested by lowering to near the waterand loading to capacity with weight evenly distributed. Itis then lowered into the water and released. This test mustbe done at least once every（）.

A . Number of persons allowed B . Name of the vessel C . Weight of the boat D . Home port

A . astern and the victim just off the bow B . ahead and the victim just off the bow C . just off the bow and the victim to windward D . just off the bow and the victim to leeward

A . shorter than the others B . used for the stroke oar C . used by the forward man in the boat to direct the bow D . longer than the others and should be lashed to the ster

A . shorter than the rowing oars B . the same length as the rowing oars C . longer than the rowing oars D . unrelated to the length of the rowing oar

A . sheer strake B . bilge strake C . garboard strake D . keel ri

A . run as fast as the boat will go and keep the sea on the stern B . secure the engine，put sea anchor over the bow，put out the oars，use sweep oar and back onto beach C . go in under oars and put out the sea painter D . put the sea broadside and let the boat drift ashore

A . on only the forward falls B . on only the after falls C . with a lead of about 45 degrees to the boat D . from the falls to the main deck of the vessel

A . on the lee side B . on the windward side C . with the wind dead ahead D . with the wind from aster

A . limit switches B . emergency disconnect switch C . governor brake D . position of the counterweight on the brake handle

A . along the turn of the bilge B . along each side of the keel C . near the top of the gunwale D . at the bow and at the ster

A . an approach from leeward B . an approach from windward C . the most direct approach D . an approach across the wind

A . bumpkin oar B . stroke oar C . sweep oar D . becket oar

A . Release gripes，turn on emergency disconnect switch，release frapping lines B . Release tricing pennants，turn on emergency disconnect switch，release frapping lines C . Operate limit switches，release gripes，lift brake D . Release gripes，lift brake，release tricing pennant

A . the line attached to the tack of the lugsail B . the emergency rudder C . a canvas awning D . the aftermost seating

A . determined by the Master B . specified by the Coast Guard C . specified by the manufacturer D . None

A . kerosene B . unleaded gasoline C . diesel oil D . liquefied ga

A . The lifeboat is lowered to near the water，loaded with the allowed capacity，lowered into the water until afloat，then released from the falls B . The lifeboat is loaded with the allowed capacity，lowered into the water until afloat，then released from the falls C . The lifeboat is lowered into the water until afloat，loaded with the allowed capacity，then released from the falls D . The lifeboat is lowered to near the water，loaded with the allowed capacity，then released from the fall

A . Provides air for engine combustion B . Pressurizes water spray system C . Provides air for passenger respiration D . Prevents smoke and other noxious fumes from entering craft

A . Smoke signal B . Flash signal C . Fire signal D . Radio emergency transmissio

A:对 B:错

A．6 months B．12 months C．18 months D．24 month