All engines in lifeboats and rescue boats shall be run for a total period of not less than（）in weekly inspections.

A . available minimum requirements B . available maximum requirements C . mandatory minimum requirements D . mandatory maximum requirement

A . Before the boat is lowered from the stowage position B . As soon as the boat-fall blocks clear the davit head C . After the limit switch is activated D . After all people have been embarked

A . 3 litres of water B . 1 unit of provisions C . 1 seasickness kit D . 1 life preserver

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 . place for people to lie down B . means for rigging the sail C . place for rowers to brace their feet D . suitable means for water to drain below the footing

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 . ahead or astern B . fore or aft C . up or down D . speed or directio

A . remain in the immediate vicinity B . head for the nearest land C . head for the closest sea-lanes D . vote on what to do，so all hands will have a part in the decisio

A . tie up to the rescue vessel B . transfer only those personnel who are not seasick C . wait for calmer weather before transferring personnel D . transfer all personnel immediately

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 . operational B . open C . closed securely D . at middle positio

A . Frapping line B . Tricing line C . Rottmer release D . Winch remote control wire

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

A . fuel supply valve should be closed B . hatches，doors，and oar ports should be closed C . air cylinder shut-off valve should be closed D . engine should be shut off

A . the top 2-1/2 inches of each side B . the releasing gear lever C . the fuel tanks D . the thwart

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

A . increase blow-by in all cylinders B . incomplete combustion in all cylinder C . overloading in all cylinders D . insufficient fuel delivery to all cylinder

A.ahead or astern B.fore or aft C.up or down D.speed or direction

A.like B.as C.with D.to