When water is used to fight a fire on board a ship,the effect of the weight of the water must be taken into account. How much sea water will increase the weight displacement by one ton?()
A、64 cubic feet
B、35 cubic feet
C、100 gallons
D、500 liters
A、64 cubic feet
B、35 cubic feet
C、100 gallons
D、500 liters
A、is usually cooled by sea water B、can be replaced when worn out C、is in direct contact with the water in the bore of the cylinder D、can t expand when heated
A、Primer is used for sea water tanks and double bottom tanks. B、Cement wash is used for fresh water tanks and double bottom tanks. C、Varnish is used for fresh water tanks and double bottom tanks. D、Bitumen is used for fresh water tanks and double bottom tanks.
A、is effective if used promptly on an oil fire B、has a greater cooling effect than water C、is lighter than air D、is harmless to cargo and crew
A、Any time the vessel moves from water of one density into waters of a different density B、Prior to getting underway when the vessel is floating in fresh or brackish water C、Only when the vessel moves from fresh water into salt water D、The density of the water is not required to be logged in the unofficial logbook
A、A lightly laden vessel requires as much stopping distance as a fully laden vessel when the current is from astern B、A vessel is dead in the water when the back wash from astern operation reaches the bow C、A tunnel bow thruster can be used in an emergency to reduce the stopping distance D、When a vessel is dead in the water any speed displayed by doppler log reflects the current
A、A physical partition is hosted on one or more logical partitions. A logical partition is used when describing storage. B、A logical partition is hosted on one or more physical partitions. A physical partition is used when describing storage. C、A physical partition is used when describing only a SCSI or SAS disk. A logical partition is used when describing a SAN LUN. D、A logical partition is used when describing only a SATA or SAS disk. A physical partition is used when describing RAID or mirrored arrays.
A、five to seven times the depth of water B、seven to ten times the depth of water C、twice the depth of water D、twice the depth of water plus the range of tide