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The use of sinking and dispersing chemical agents for removal of surface oil is ______.
A.the most common method used in the United States
B.too expensive for common use
C.generally safe to sea life
D.authorized only with prior approval of the Federal On-Scene Coordinator
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更多 “ The use of sinking and dispersing chemical agents for removal of surface oil is ______.A.the most common method used in the United StatesB.too expensive for common useC.generally safe to sea lifeD.authorized only with prior approval of the Federal On-Scene Coordinator ” 相关考题
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In cleaning up an oil spill, the use of chemical agents would______.A.absorb the oil for easy removalB.remove the oil from the waterC.disperse or dissolve the oil in the waterD.not affect the oil
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The most common type of containment device for spilled oil on the water is the use of _____.A.strawB.boomsC.skimmersD.chemical dispersants
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Coalescence(聚合) is the breakdown of surface tension between oil droplets in an oil/water mixture, which causes them to join and ______in size.A.expandB.extractC.increaseD.decrease
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Fueling results in the collection of waste oil in drip pans and containers. Which is an approved method of disposing of the waste oil?A.Draining it overboard when the vessel gets underwayB.Placing it in proper disposal facilitiesC.Adding sinking agents and discharging it into the waterD.Mixing it with dispersants before draining it overboard
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Oil slick caused by spillage of oil from tanker ship is ______.A.a drop of oilB.the emulsion of oil at sea surfaceC.the weathered oilD.the oil floating on the surface of the sea water
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International Certificate of Fitness for the Carriage of Dangerous Chemicals in Bulk shall be carried on board by ______．A.chemical tankers constructed on or after 1 July 1986B.chemical tankers constructed before 1 July 1986C.All chemical tankersD.oil tankers of 150 gross tonnage and above
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Which of the following may be used in cleaning up an oil spill without the permission of governmental authorities ________．A.Straw and Skimmers onlyB.Skimmers and Chemical dispersants onlyC.Straw and Chemical dispersants onlyD.Straw，Skimmers and Chemical dispersants
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单选题One disadvantage of using regular dry chemical (sodium bicarbonate) in firefighting is that（）.A
it can break down under high heat and emit noxious fumesB
it will decompose under prolonged storage and lose its effectivenessC
fire has been known to flash back over the surface of an oil fireD
it is ineffective in fighting fires in high-voltage electrical equipment
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单选题A (n) （） is a chemical or electro-chemical attack on the metal surface which may be further increased if the sea-water is polluted.A
erosionB
corrosionC
cavityD
scouring
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单选题In cleaning up an oil spill, the use of straw or reclaimed paper fibers would be an example of which type of oil removal?（）A
Chemical agent removalB
Mechanical removalC
Absorbent removalD
None of the above
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问答题Chemistry is the study of the behavior and composition of matter. All foodsare made up of chemical substance which undergoes chemical changes when cooking 1．_______in an oven or digested within the body. The cooking of meat and vegetables induce 2．_______chemical changes, making it more delicious; similarly the leavening action of 3．_______baking powder is a straightforward chemical change, as is the conversion ofstarch into sweet sugars by digestion. Cookery is a science requiring for a knowledge of chemistry. 4．_______This is evident from the variety of cooking products and food additives availableas cooking oils, fats, colorings, sweeteners, tenderizers, flavorings, scream-ing agents, preservatives, etc. Each is carefully prepared before painstaking 5．_______research. It is therefore essential for trained cookers to understand 6．_______chemical science in order to appreciate the chemistry nature of foods 7．_______and the changes achieving on cooking. Homeworkers should also 8．_______know cleansing agents and textiles used in the home and how the latter 9．_______responds to the effects of heat, light, water, and chemical cleansing agents. 10．_______
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单选题What is an advantage of using foam in fire fighting?（）A
It is effective in controlling fire in flowing oil such as coming from a broken fuel lineB
It absorbs heat from materials that could cause reignitionC
Most foams can be used jointly with dry chemical extinguishing agents to attack a fire by two methods of extinguishmentD
Once the surface is blanketed with foam and the fire is extinguished，no further foam is required
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单选题The removal of （） from lubricating oil will reduce engine wear and possible breakdowns.A
contaminating waterB
contaminated additivesC
contaminated fuelD
contaminating impurities
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单选题Gas exchange, which is a basic part of the cycle of an internal combustion engine, is（）A
the supply of normal air and removal of compressed airB
the supply of fuel oil and combustion of the atomized oilC
the supply of fresh air and removal of exhaust gasesD
the supply of fresh air and removal of the extra heat
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单选题The use of sinking and dispersing agents for the removal of surface oil is （）.A
the most common method used in the United StatesB
too expensive for common useC
generally safe to sea lifeD
generally harmful to sea life
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单选题The Master should call （） for permission to use chemical agents in response to oil pollution into sea.A
the flag stateB
the coastal stateC
the port stateD
the shipping company
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单选题“Before disconnecting the oil pipe, would you flush the oil retained in the pipe?” asked the oil barge owner （）A
by using of fresh waterB
with compressed airC
by using of sea waterD
with chemical compound
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单选题When an oil fire has been extinguished, the surface of the oil should be kept covered with foam to prevent （）.A
air from contacting the oil vaporsB
permitting re-ignition boiling of the heated oilC
spontaneous combustion below the oil surfaceD
toxic fumes from escaping to the surface
考题
单选题Fueling results in the collection of waste oil in drip pans and containers. Which is an approved method of disposing of the waste oil? （）A
Draining it overboard when the vessel gets underwayB
Placing it in proper disposal facilitiesC
Adding sinking agents and discharging it into the waterD
Mixing it with dispersants before draining it overboard
考题
单选题Which oil is not suitable for use as storm oil?（）A
Fish oilB
Vegetable oilC
Mineral oilD
Animal oil
考题
单选题Coalescence is the breakdown of surface tension between oil droplets in an oil/water mixture, which causes them to join and （） in size.A
expandB
extractC
increaseD
decrease
考题
单选题When oil is accidentally discharged into the water，what should you do after reporting the discharge（）.A
Contain the oil and remove as much of it as possible from the waterB
Throw chemical agents on the water to disperse the oilC
Throw sand on the water to sink the oilD
Obtain your permit from the Corps of Engineers
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单选题If an oil spill occurs on deck, you should （）.A
cover the area with foamB
cover the area with absorbent materialC
wash down immediately with a fire hoseD
wash down immediately with an oil dispersing solvent
考题
单选题In cleaning up an oil spill, the use of chemical agents would （）.A
absorb the oil for easy removalB
remove the oil from the waterC
disperse or dissolve the oil in the waterD
not affect the oil
考题
单选题The use of sinking and dispersing chemical agents for removal of surface oil is（）.A
the most common method used in the United StatesB
too expensive for common useC
generally safe to sea lifeD
authorized only with prior approval of the Federal On-Scene Coordinator
考题
单选题The use of sinking and dispersing chemical agents for removal of surface oil is（）.A
the most common methodB
too expensive for common useC
generally safe to sea lifeD
authorized only with prior approval of the governmental On-Scene Coordinator
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