Two navigational hazards are located near to each other，but each is marked by an individual cardinal buoyage system. The buoys of one cardinal system may be identified from the other system by（）.

A . toward the inside of the bend B . toward the outside of the bend C . toward the center of the river just before the bend，then change course for the river's center after the bend D . in the river's center

A . ballast deep tanks if they are slack B . transfer ballast athwarships C . pump out double bottoms D . fill double bottom from deep tank

A . the helmsman B . the mate on watch C . Either A or B D . Neither A nor B

A . accessible B . restricted C . deterred D . far away

A . rotor blades and landing gear B . unloading of passengers C . loading of cargo D . pilot's visibility

A . can use radar information from one object to fix the position B . should never use radar bearings C . should only use radar bearings when the range exceeds the distance to the horizon D . must use information from targets forward of the beam

A . a hood or hard hat B . a face mask or goggles C . boots D . chemical resistant glove

A . outside B . on class C fires C . in an emergency D . on class B fire

A . stow the hazardous cargoes on deck available for jettisoning if necessary B . remove the hazardous cargo labels from a portable tank after the tank is emptied C . have the shipping papers indicate the proper shipping name and the technical name of n.o.s. cargoes D . log the receipt of hazardous cargoes in the Official Logbook

A . Anchoring in the presence of ice is not recommended except in an emergency B . Towing a vessel through an ice field is not recommended except in an emergency C . The "Free and Proceed" system of escorting a beset vessel cuts down on the number of freeing operations D . When anchoring in ice，it is advisable to increase the scope of the chain over what is normally used for non-icing conditio

A、the relief of that officer shall be made prior to such action has been completed B、the relief of that officer shall never be made C、the relief of that officer shall be deferred until such action has been completed D、the relief of that officer shall be made by the captain

A . fine B . imprisonment C . suspension or revocation of tankerman's document D . All of the above

A . a MSA Marine Inspector B . an officer assigned to the vessel by MSA C . a officer from CCS D . the National Cargo Bureau

A . Light List B . Notice to Mariners C . Coast Pilot D . Sailing Directio

A . ballast deep tanks if they are slack B . transfer ballast athwartships C . pump out double bottoms D . fill double bottoms from deep tank

A . Open-bed containers may be used to transport hazardous materials if the cargo is properly secured B . A portable cargo tank of a flammable，cryogenic liquid may not be in transit for a period exceeding its marked rated holding time unless the liquid is inhibited C . A portable cargo tank containing a cryogenic liquid must be shipped on deck unless forced ventilation is provided to the tween-decks D . A container loaded with packages of tear gas would display a placard reading Irritant

A、a straight line drawn on the chart approximates a great circle B、the chart should not be used outside of the standard parallels C、the course angle is measured at the mid-longitude of the track line D、Distance cannot be measured directly from the chart

A . Can always rely on a buoy to be on station B . Can always rely on a buoy to show proper light characteristics C . Should assume a wreck buoy is directly over the wreck D . Should never rely on a floating aid to maintain its exact positio

A . deteriorate and give off noxious gasses B . spontaneously heat and catch fire C . attract lice and other vermin and serve as a breeding ground D . None of the above

A . rotor blades and landing gear B . unloading of passengers C . loading of cargo D . pilot's visibility

A、Direct tailwind B、Light quartering tailwind C、Light quartering headwind