单项选择题
A.keep vessel afloating B.refloat vessel listing to starboard C.make vessel all-right D.bring vessel upright
Protective clothing must be worn while sampling hazardo...
单项选择题Protective clothing must be worn while sampling hazardous cargo on a tanker，and as a minimum includes（）.
A.a hood or hard hat B.a face mask or goggles C.boots D.chemical resistant gloves
On the all-purpose nozzle，the position of the valve whe...
单项选择题On the all-purpose nozzle，the position of the valve when the handle is all the way forward is（）.
A.shut B.fog C.solid stream D.spray
On a vessel carrying grades A，B，C or D cargoes，enclosed...
单项选择题On a vessel carrying grades A，B，C or D cargoes，enclosed spaces where sources of vapor ignition are normally present shall NOT be segregated from cargo tanks by（）.
A.cofferdams B.galleys C.pump rooms D.tanks used to carry liquids having a flash point of 150°F or above
