A.there are fifteen pounds of CO2 in the container B.the container，when full，weighs fifteen pounds C.the pressure at the discharge nozzle is l5 psi D.the empty container weighs fifteen pounds
A.ferries B.passenger liners C.cruise ships D.ocean going vessels
A.greater than the declination and both are of the same name B.less than the declination and both are of the same name C.greater than the declination and both are of contrary name D.less than the declination and both are of contrary name
A.when anchoring in the Mediterranean B.when docking stern to a berth C.when docking bow to a berth D.when anchoring in a strong current
A.bigger propeller B.smaller power to weight ratio C.smaller propeller D.larger power to weight ratio
A.actual total loss B.constructive total loss C.general average D.particular average
A.blocks have been overhauled B.hauling parts of two tackles are attached C.hauling part leads through the movable block D.hauling part leads through the standing block
A.turning the victim's head to the side to keep his airway open B.positioning the victim so the head is lower than the body C.giving the victim water if he is thirsty，but no food D.elevating the head and shoulders slightly with a pillow
A.an air leak has developed in the tank B.the tank cooling system has malfunctioned C.the pilot cylinder discharge valve is leaking D.an excessive amount of insulation has been installed on the tank and piping
A.sailing chart B.general chart C.coastal chart D.harbor chart
