A.normal water supply at the water seal is lost
B.the temperature of the inert gas being delivered to the cargo tanks is more than 150°F
C.the cooling water supply to the scrubbers is lost
D.all of the above
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A.diminishing the height of the seas
B.lengthening the distance between successive crests
C.increasing the height of the seas
D.preventing the wave crests from breaking
A.contains high quantities of hydrogen sulfide
B.is diluted with other products for carriage
C.is lighter than other crudes
D.is less hazardous to load than other crudes
A.keep the propeller from being fouled
B.increase propeller speed
C.help calm the waves in the vicinity of the craft
D.increase the holding power of the sea anchor
A.exerted by liquid cargo on the sides of a tank
B.exerted by liquid cargo on a cargo hose body
C.the lowest temperature and pressure that will cause a flammable liquid to give off vapors
D.a measurement of the amount of flammable vapors given off by a liquid at a certain temperature
A.cofferdams
B.empty cargo spaces
C.gas tight bulkheads
D.areas equipped with power ventilation
最新試題
During loading and discharging operations，in addition to when the cargo tanks have been properly filled，each inert gas system must be capable of maintaining a minimum gas pressure of（）.
Regulations require that cargo tanks carrying grades D or E liquids on tank barges be vented with（）.
The purpose of inert gas systems aboard tankers is to（）.
Hoses used for cargo transfer operations must be tested and inspected at specified intervals by（）.
The fresh air intake of the inert gas system（）.
The purpose of the deck seal in an inert gas system is to prevent（）.
Regulations require that pumprooms on tank vessels carrying grade C liquid cargo with machinery spaces below the freeboard deck be ventilated with（）.
Releasing oil from the sea anchor of a survival craft may（）.
The component in an inert gas system used for cleaning the gas of solid and sulphur combustion products，while simultaneously cooling the inert gas，is called the（）.
The blowers of an inert gas generation system aboard a tanker，will be automatically secured if（）.