單項選擇題Before entering a fuel tank that has been cleaned, it should be checked with an oxygen indicator and a/an（）.

A.Orsat apparatus
B.flame safety lamp
C.Halide torch
D.combustible gas indicator


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1.單項選擇題While loading bulk oil, you notice oil on the water near the bargeWhich of the following actions should you carry out FIRST?（）

A.Search the vessel for leaks
B.Notify terminal superintendent
C.Stop loading
D.Notify the Coast Guard

2.單項選擇題Your vessel is taking on fuel oil when a small leak develops in the hose and you have ordered the pumping stoppedBefore resuming pumping，you should（）.

A.notify the terminal superintendent
B.place a large drip pan under the leak and ping the scuppers
C.repair the hose with a patch
D.replace the hose

3.單項選擇題A combustible gas indicator is used to determine （）.

A.if there is sufficient oxygen to support life
B.the toxicity of flammable gases or vapors
C.the amount of CO2 present in flue gas
D.the presence of flammable gases or vapors in the air

4.單項選擇題A fire in a pile of linen is considered to be a class （）.

A.A fire
B.B fire
C.C fire
D.D fire

5.單項選擇題Your vessel is taking on bunkers from a shore side facility, if oil begins flowing from one tank vent, which of the following actions should be taken FIRST?（）

A.Open the intake valve to an adjacent tank
B.Set out drip pans and sawdust and begin to mop up the spill
C.Signal the shore control point to shutdown
D.Close the valve on the tank vent line