單項選擇題While testing a cargo tank,your oxygen indicator reads 25% oxygen in the tank. You would then ().

A.enter the tank safely
B.suspect the accuracy of the reading
C.ventilate the tank
D.test for nitrogen


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1.單項選擇題Which vessel in ocean service is not subject to Annex V of MARPOL 73/78? ()

A.A 20-foot sailing vessel
B.A 26-foot tug and tow
C.An uninspected 35-foot passenger vessel
D.A Navy Destroyer

2.單項選擇題Which substance is NOT considered to be Oil under the pollution prevention regulations? ()

A.Petroleum and fuel oil
B.Sludge
C.Oil mixed with dredge spoil
D.Oil refuse and oil mixed with wastes

3.單項選擇題Which step is NOT generally taken when gas-freeing a tank?().

A.Washing the tank interior with sea water
B.Application of degreasing solvents
C.Removal of corrosion products and sludge
D.Fresh air ventilation

4.單項選擇題Which statement is TRUE concerning the ventilation of engine and fuel tank compartments on uninspected towing vessels using fuel with a flash point of 100°F?()

A.There shall be at least 3 ventilator ducts open to the atmosphere
B.At least one exhaust duct shall extend from the open atmosphere to the lower portion of the bilge
C.At least one intake duct shall extend from the open atmosphere to the lower portion of the bilge
D.Only vessels using fuel with a flash point above 110°F need ventilate engine and fuel compartments

5.單項選擇題Which statement is TRUE concerning protection of double bottom tanks against excessive pressure? ()

A.Each vent for the tank must be equal to the area of the tank filling line
B.The tanks must be protected by overflows
C.The total area of the vents or the overflow shall be at least equal to the area of the fill line
D.There must be twice as much vent area as the area of the fill line

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Which is a mandatory section of the shipboard Oil Pollution Emergency Plan().

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You are on a multiple-product chemical tanker with orders to load diethylamine.What is NOT a requirement for transporting this cargo().

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Whenever visible traces of oil are observed on or below the surface of the water in the immediate vicinity of ship or its wake,Governments of Parties to the Convention should,to the extent they are reasonably able to do so,promptly()the facts bearing on the issue of whether there has been a violation of the provisions of this Regulation or Regulation 10 of this Annex of MARPOL 73/78.

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Which statement is TRUE().

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According to Annex V to MARPOL 73/78,garbage containing plastic is permitted to be disposed of by().

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The officer responsible for the sanitary condition of the engineering department is the ().

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Which vessel in ocean service is not subject to Annex V of MARPOL 73/78? ()

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A ship that,at any time,operates seaward of the outermost boundary of the territorial sea is required to prepare,submit,and maintain a(n)().

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