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
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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
A.cofferdams
B.empty cargo spaces
C.gas tight bulkheads
D.areas equipped with power ventilation
最新試題
According to the Chemical Data Guide，which reactive group(s) is/are not compatible with the products polybutene and o-xylene? （）
What alarm is NOT found on an inert gas system? （）
The purpose of inert gas systems aboard tankers is to（）.
Petroleum cargo tanks should not be topped off at deck level when loading on a cold day because（）.
The deck water seal of the inert gas system（）.
In setting the valves on a steam-smothering system on a tank vessel，the master control valve to cargo tanks should be（）.
Reid vapor pressure is（）.
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 pumps in tankers carrying grade D liquid cargo shall be isolatedfrom sources of vapor ignition by（）.
The purpose of the deck seal in an inert gas system is to prevent（）.