Is this a （）(淡水) tank?A、bilge waterB、ballast waterC、fresh waterD、sea water
Is this a （）(淡水) tank?
- A、bilge water
- B、ballast water
- C、fresh water
- D、sea water
相关考题：
An alarm device inserted between the deaerating tank and the expansion tank can notify the on-watching crew that .A.the expansion tank is lack of waterB.the expansion tank is over flowingC.there is something wrong with the cooling systemD.there is something wrong with the engine
A tank has been sealed and unventilated(不通风的) for a long period of time. Which of the following conditions does this indicate?A.The tank is safe to enterB.The tank is especially dangerous to enterC.Carbon monoxide(一氧化物) is presentD.Water vapor present when the tank was sealed has oxidized(使氧化)
When measuring the oxygen content of the cargo tanks prior to loading cargoes requiring vapor recovery，check it ______.A.one meter from the tank bottom and one meter below the tank topB.one half the ullage of the tank and one meter below the tank topC.one half the ullage of the tank and one meter above the tank bottomD.at three meter intervals from the tank top to the bottom
While testing a cargo tank，your oxygen indicator reads 25% oxygen in the tank. You would then ______.A.enter the tank safelyB.suspect the accuracy of the readingC.ventilate the tankD.test for nitrogen
The free surface effects of a partially full liquid tank decrease with increased ______．A.Density of the liquidB.Placement of the tank above the keelC.Displacement volume of the shipD.Size of the surface area in the tank
When referring to quantity of barite in a P-tank，ullage is the ______．A.Distance of the barite surface above the tank bottomB.Percentage of barite in the tankC.Distance of the barite surface below the tank coverD.Total weight of barite in UPC（ullages per centimeter）
You are planning to use a crude oil washing system．What precaution must be taken with the tank as the source for the washing machines ________．A.It must be debottomed and the level lowered by at least one meterB.The oil in the source tank must be sampled for compatibilityC.The source tank must have been crude oil washed at least once in the past 150 daysD.The inert gas system must lower the oxygen content to a maximum of 12% oxygen in the tank
Frames to which the tank top and bottom shell are fastened are called ______．A.floorsB.intercostalsC.stringersD.tank top supports
Frames to which the tank top and bottom shell are fastened are called ______.A.intercostalsB.stringersC.tank top supportsD.floors
Liquid goods are transported by road in （）.A、tank trucksB、tanker lorriesC、road-tankersD、special tank-containers for intermodal transport
单选题When measuring the oxygen content of the cargo tanks prior to loading cargoes requiring vapor recovery，check it（）.Aone meter from the tank bottom and one meter below the tank topBone half the ullage of the tank and one meter below the tank topCone half the ullage of the tank and one meter above the tank bottomDat three meter intervals from the tank top to the bottom
单选题Fuel oil tank vents are fitted with a screen which will stop（）.Aoil from flowing out of the tank ventBair from entering the tank ventCvapors from leaving the tank ventDflames on deck from entering the tank vent
单选题When checking the oxygen content of the cargo tanks prior to loading cargoes requiring vapor recovery，the atmosphere must be sampled（）.Aone meter from the tank bottom and one meter below the tank topBone half the ullage of the tank and one meter below the tank topCone half the ullage of the tank and one meter above the tank bottomDat three meter intervals from the tank top
单选题A tank which has been sealed for a long period of time can be dangerous because （）.Asteel surfaces consume oxygen by rustingBsealed tanks usually form a vacuumCmoisture condenses in the tank, displacing the oxygenDmost tank coatings give off poisonous vapors in the presence of moisture
单选题The FIRST course of action in fighting a fire in a cargo or fuel oil tank is to （）.Asecure all openings to the tankBdischarge an initial charge of CO2 with a hand portable extinguisherCdirect a fire hose into the tank and energize the fire mainDspray the tank boundaries with a fire hose to promote cooling
单选题In setting the valves on a steam-smothering system on a tank vessel，the master control valve to cargo tanks should be（）.Aopen and individual tank valves openBopen and the individual tank valves closedCclosed and the individual tank valves closedDclosed and the individual tank valves open
单选题What action must be taken when an individual cargo tank is closed off from the inert gas system by the tank isolation valve?（）AThe tank must be gas freedBThe tank must be ballastedCThe tank must be vented to the atmosphereDThe bypass valve must also be closed
单选题A vessel loads edible oil in a deep tank through a manhole at the midlength of the tank. In order to fill the tank to maximum capacity，what trim should the vessel have?（）ADown by the bowBDown by the sternCDown by either the bow or sternDIn level trim
单选题If emergency welding repairs must be made to the upper area of a fuel tank, the tank and/or adjacent compartments may need to be （）Agas freedBinertedCfilled with waterDall of the above as necessary
单选题What will be accepted as the shipping papers for an unmanned tank barge but will not be accepted if the tank barge is manned?（）.ABill of ladingBLogbook entryCManifestDShippi g document
单选题A wooden plug fitted tightly in the vent of a damaged tank may prevent the tank from（）.Afilling completelyBdeveloping free surfaceCdeveloping free surface momentDcollapsing
单选题The piston cooling system may employ similar components, except that a drain tank is used instead of a head tank That means this system （）.Adoesnt use a drain tank but a head tankBuses a drain tank not head tankCuses a drain tank and a head tankDuses neither a drain tank nor a head tank
单选题Gasoline fuel tank vents should terminate（）.Ain the engine compartmentBin the fuel tank spaceCabove or outside the hullDat the most convenient location
单选题What will be accepted as the shipping papers for an unmanned tank barge but will not be accepted if the tank barge is manned?（）.ABill of LadingBLogbook entryCManifestDShipping document
单选题In setting the valves on a steam-smothering system on a tanker，the master control valve to cargo tanks should be（）.Aopen and individual tank valves openBopen and the individual tank valves closedCclosed and the individual tank valves closedDclosed and the individual tank valves open
单选题While testing a cargo tank，your oxygen indicator reads 25% oxygen in the tank. You would then （）.Aenter the tank safelyBsuspect the accuracy of the readingCventilate the tankDtest for nitrogen
单选题A rectangular fish tank has a base 2 feet wide and 3 feet long. When the tank is partially filled with water, a solid cube with an edge length of 1 foot is placed in the tank. If no overflow of water from the tank is assumed, by how many inches will the level of the water in the tank rise when the cube becomes completely submerged?A1/6B1/2C2D3E4