A.filter B.cooler C.scrubber D.purifier
单项选择题The combined fan discharge rate in an inert gas system is related to the().
A.shoreside loading rate B.maximum cargo pump discharge rate C.boiler forced draft fan rate D.size of the largest cargo tank
单项选择题The blowers of an inert gas generation system aboard a tanker,will be automatically secured if().
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
单项选择题Spreading oil on the open sea has the effect of().
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
单项选择题Sour crude oil().
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
单项选择题Releasing oil from the sea anchor of a survival craft may().
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