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单选题
When bilge water is heated in a holding tank, which one of the following statements is not accurate?（）
A
The high temperature facilitates primary gravity separation
B
Most of the oil and organic solvents are raised to the top layer
C
The high the temperature is, the more the top oil will be collected
D
The high temperature has little use on the separation of emulsified oil
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更多 “单选题When bilge water is heated in a holding tank, which one of the following statements is not accurate?（）A The high temperature facilitates primary gravity separationB Most of the oil and organic solvents are raised to the top layerC The high the temperature is, the more the top oil will be collectedD The high temperature has little use on the separation of emulsified oil” 相关考题
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A liferaft which has inflated bottom-up on the water ______.A.should be righted by standing on the carbon dioxide cylinder，holding the righting straps and leaning backwardsB.should be righted by standing on the life line，holding the righting straps leaning backwardsC.will right itself when the canopy tube inflatesD.must be cleared of the buoyant equipment before it will right itself
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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
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If you must enter water on which there is an oil fire, you should ______.A.protect your life preserver by holding it above your headB.enter the water on the windward side of the vesselC.keep both hands in front of your face to break the water surface when diving head firstD.wear very light clothing
考题
单选题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
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for the release of air from the cooling waterB
providing expansion room for heated cooling waterC
a place for implementing water and water treatment agentD
all of the above
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单选题The domestic fresh water pump starters are controlled by pressure switches which operate when the pressure in the tank varies within predetermined limits as water is drawn offThe word “which” means （）.A
startersB
pressure switchesC
pressureD
water
考题
单选题Which of the equipment listed is most effective in processing bilge slops for overboard discharge?（）A
100PPM oily water separatorB
Assembling the lube oil purifier as a separator and aligning bilge overboardC
A 15PPM oily water separatorD
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单选题In a domestic fresh water system, the pump starters are controlled by （） switches which operate when the pressure in the tank varies within predetermined limits as water is drawn off.A
water levelB
water flowC
temperatureD
pressure
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单选题In the event of damage to the DEEP WATER SHIP which results in flooding to one of the lower-hull tanks，pump from（）.A
nearby damaged tanksB
nearby undamaged tanks containing ballastC
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考题
单选题When checking the oxygen content of the cargo tanks prior to loading cargoes requiring vapor recovery，the atmosphere must be sampled（）.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
考题
单选题Each cylinder liner on the marine medium speed engines （）.A
is usually cooled by sea waterB
can be replaced when worn outC
is in direct contact with the water in the bore of the cylinderD
can t expand when heated
考题
单选题During inspection of oil and oily mixtures from machinery spaces, which of the following factors should be taken into account by the PSCO? （）A
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The capacity of sludge and bilge water holding tankC
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考题
单选题Which one of the following is not generally recognized as one constitute of bilge water?（）A
Oil leaking from tanks inside engine roomB
Engine room cleaning waterC
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考题
单选题When fighting an oil or gasoline fire in the bilge，which of the following should NOT be used?（）A
FoamB
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考题
单选题Which of the following descriptions best identifies the operating principal of a flash-type evaporator?（）A
Sea water is heated to boiling temperature while under a vacuumB
Sea water is passed over heated plates in a thin filmC
Heated sea water is injected into a vacuum chamberD
Sea water is forced through a heated eductor
考题
单选题Oil water separators are used to ensure that ships don’t discharge oil when （） bilge water.A
to pump offB
being pumpedC
pumping outD
it pumping out
考题
单选题When discharging bilge water, which criteria must be observed?（）A
The requirement for the oil content of bilge water discharged is 15 ppmB
No discharge in sensitive watersC
Any discharge in sensitive watersD
International, national or local requirements have to be observed
考题
单选题A life raft which has inflated bottom-up on the water（）.A
should be righted by standing on the carbon dioxide cylinder, holding the righting straps, and leaning backwardsB
should be righted by standing on the life line, holding the righting straps, and leaning backwardsC
will right itself when the canopy tubes inflateD
must be cleared of the buoyant equipment before it will right itself
考题
单选题A liferaft which has inflated bottom-up on the water（）.A
should be righted by standing on the carbon dioxide cylinder，holding the righting straps，and leaning backwardsB
should be righted by standing on the life line，holding the righting straps，and leaning backwardsC
will right itself when the canopy tubes inflateD
must be cleared of the buoyant equipment before it will right itself
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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?A
1/6B
1/2C
2D
3E
4
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