單項(xiàng)選擇題Before welding can be done in a tank that has carried petroleum products，a certificate must be obtained from（）.

A.the Customs
B.the Register Bureau of Shipping
C.the Shipyard Fire Department
D.a certified gas chemist


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1.單項(xiàng)選擇題If you are fighting a fire below the main deck of your vessel，which action is most importantconcerning the stability of the vessel? （）

A.Shutting off electricity to damaged cables
B.Pumping fire-fighting water overboard
C.Maneuvering the vessel so the fire is on the lee side
D.Removing burned debris from the cargo hold

2.單項(xiàng)選擇題The purpose of the deck seal in an inert gas system is to prevent（）.

A.flammable vapors from entering machinery space
B.flue gas escaping to atmosphere
C.inert gas escaping to atmosphere
D.air entering inert gas system

3.單項(xiàng)選擇題The designations A，B，C，D and E grades of cargo refer to the（）.

A.degrees of quality of petroleum products
B.flash point range and Reid vapor pressure index of petroleum products
C.grades of crude oil
D.pour point，color，and viscosity index of petroleum products

5.單項(xiàng)選擇題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

6.單項(xiàng)選擇題One of the principal dangers inherent in liquefied petroleum gas is（）.

A.as it warms up it becomes heavier than air
B.the way it reacts with sea water
C.the strong odor it produces
D.its low temperature causes frostbite or freezing

7.單項(xiàng)選擇題Upon arrival at the discharging port，the inert gas system is（）.

A.turned on
B.turning on
C.turn on
D.to turn on

8.單項(xiàng)選擇題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

9.單項(xiàng)選擇題The deck water seal of the inert gas system（）.

A.cools the inert gas and prevents soot from entering the cargo tanks
B.acts as an emergency shutdown when inlet pressures exceed the safe working pressure
C.prevents the backflow of hydrocarbon gasses into nonhazardous areas
D.relieves sudden large overpressures in the system

10.單項(xiàng)選擇題What alarm is NOT found on an inert gas system? （）

A.Low oxygen alarm
B.Low pressure alarm
C.Scrubber high water level alarm
D.Deck seal low water alarm

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（）.

題型：?jiǎn)雾?xiàng)選擇題

Unless such oil tanker carries crude oil which is not suitable for crude oil washing，the oil tanker shall（）the system in accordance with the requirements of that Regulation.

題型：?jiǎn)雾?xiàng)選擇題

Regulations require that cargo pumprooms on tank barges (constructed in 1965) carrying grades B or C liquid cargoes have power ventilation systems which can completely change the air in （）.

題型：?jiǎn)雾?xiàng)選擇題

Regulations require that tank vessels handling grade B liquids shall have their cargo pumps separated from all sources of vapor ignition by（）.

題型：?jiǎn)雾?xiàng)選擇題

Inerting means（）.

題型：?jiǎn)雾?xiàng)選擇題

What action must be taken when an individual cargo tank is closed off from the inert gas system by the tank isolation valve?（）

題型：?jiǎn)雾?xiàng)選擇題

According to the Chemical Data Guide，which reactive group(s) is/are not compatible with the products polybutene and o-xylene? （）

題型：?jiǎn)雾?xiàng)選擇題

Each inert gas system gas main must have an automatic shut down valve at the outlet of the gas production plant. This valve must close automatically upon（）.

題型：?jiǎn)雾?xiàng)選擇題

The designations A，B，C，D and E grades of cargo refer to the（）.

題型：?jiǎn)雾?xiàng)選擇題

What alarm is NOT found on an inert gas system? （）

題型：?jiǎn)雾?xiàng)選擇題