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

题目

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.expand

B.extract

C.increase

D.decrease

相似考题

1.A high rate of separation between oil and water is favored by ______.A.large size of oil globule(小球)B.low temperatureC.high viscosityD.high flow rate

2.An oil tanker operating with dedicated clean ballast tanks shall be equipped with ______，approved by the Administration on the basis of specification recommended by the Organization，to enable supervision of the oil content in ballast water being discharged．A.An oil content meterB.An oil checkerC.An analyzer of oil contentD.A mixer of oily water

3.OIL-IN-WATER are ______．A.sediment of oil in waterB.oil dissolvents in waterC.solid oil aggregatesD.droplets of oil suspended in water

4.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

更多“Coalescence(聚合) is the breakdown of surface tension between oil droplets in an oil／water ”相关问题

第1题：

单选题
A high rate of separation between oil and water is favored by （）.
A
large size of oil globule
B
low temperature
C
high viscosity
D
high flow rate

正确答案： B
解析：暂无解析
第2题：

单选题
What type of oil is not covered in the oil pollution law?（）
A
mineral oil
B
machinery oil being transferred for shipboard use
C
crude oil unrefined
D
normal bilge oil and water

正确答案： A
解析：暂无解析
第3题：

单选题
An oil tanker operating with dedicated clean ballast tanks shall be equipped with（），approved by the Administration on the basis of specification recommended by the Organization，to enable supervision of the oil content in ballast water being discharged.
A
an oil content meter
B
an oil checker
C
an analyzer of oil content
D
a mixer of oily water

正确答案： B
解析：暂无解析
第4题：

单选题
In an oily water separator the oil will travel （） to the oil collecting spaces.
A
upwards
B
downwards
C
outwards
D
forwards

正确答案： D
解析：暂无解析
第5题：

单选题
An oil water monitor is required in order to measure （）.
A
the oil content in water
B
the water content in fuel oil
C
the water level in bilge well
D
the oil level in bilge well

正确答案： D
解析：暂无解析
第6题：

单选题
Demulsibility of a lube oil is defined as （）.
A
the ability of oil to separate from water
B
the temperature at which oil flows rapidly
C
a measure of the water in a lube oil system
D
an emulsion of different grades of oil

正确答案： A
解析：暂无解析
第7题：

单选题
The position of the interface between oil and water within the centrifuge is achieved by the use of （）.
A
gravity disc
B
centrifugal bowl
C
a stack of discs
D
main sealing ring

正确答案： A
解析：暂无解析
第8题：

单选题
For a L√Opurifier, if the back pressure of the oil outlet is too high, the interface between oil and water in the bowl will （）.
A
be interrupted
B
move downwards
C
move outwards
D
retain original position

正确答案： D
解析：暂无解析
第9题：

单选题
In an oil cooler circulated by sea water, the oil is at a larger pressure the result being that any leak in the cooler will mean a loss of （）.
A
oil
B
sea water
C
refrigerant
D
fresh water

正确答案： A
解析：暂无解析
第10题：

单选题
The function of lubricating oil is to （）
A
maintain even distribution of bearing wear
B
maintain a constant oil temperature
C
maintain a pressurized film between moving surfaces
D
remove entrained water

正确答案： C
解析：暂无解析
第11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
expand
B
extract
C
increase
D
decrease

正确答案： A
解析：暂无解析
第12题：

单选题
（） is the breakdown of surface tension between oil droplets in an oil water mixture which causes them to join and increase in size.
A
Wear
B
Contaminating
C
Coalescence
D
Coarse separating

正确答案： A
解析：暂无解析
第13题：

单选题
If the cooling water temperature and the lube oil temperature in a diesel engine are too high, the cause can be （）
A
a dirty lube oil strainer
B
internal water leaks
C
an oil suction line restriction
D
excessive wears of the cooling water pump

正确答案： B
解析：暂无解析
第14题：

单选题
Which of the following is NOT on the list items to be recorded in Oil Record Book Part I (machinery space operation)?（）
A
Accidental discharge of oil
B
Disposal of oil residues
C
Quantity of water produced by FWG
D
Discharge of dirty ballast or cleaning water from fuel oil tanks

正确答案： D
解析：暂无解析
第15题：

单选题
Which of the following conditions indicates the dilution of diesel engine lube oil by fuel oil?（）
A
Water discharging from the water outlet of the lube oil purifier
B
Fuel oil discharging from the water outlet of the lube oil purifier
C
Lube oil discharging from the water outlet of the lube oil purifier
D
A change in the lube oil viscosity

正确答案： C
解析：暂无解析
第16题：

单选题
Oil water separators are used to ensure that ships dont discharge oil when pumping out （）.
A
ballast water
B
boiler water
C
bilge water
D
sewage water

正确答案： B
解析：暂无解析
第17题：

单选题
The remaining oil/water mixture now flows down into the fine separating compartment and moves slowly between the（） in the Turbulo separator.
A
catch plates
B
swash plates
C
cover plates
D
bedplates

正确答案： D
解析：暂无解析
第18题：

单选题
Which of the following statements is true concerning an oil cooler?（）
A
The oil temperature is less than the cooling water temperature
B
The oil pressure is less than the cooling water pressure
C
The oil pressure is greater than the cooling water pressure
D
The oil flow control valve is always installed in the oil input line

正确答案： C
解析：暂无解析
第19题：

单选题
The principle of separation by which all commercially available oily water separators function is （） differential between oil and water.
A
the temperature
B
the viscosity
C
the gravity
D
the size

正确答案： A
解析：暂无解析
第20题：

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 vapors
B
permitting re-ignition boiling of the heated oil
C
spontaneous combustion below the oil surface
D
toxic fumes from escaping to the surface

正确答案： D
解析：暂无解析
第21题：

单选题
Lube oil in the fresh water cooling system of a diesel engine may result from a （）
A
camshaft seizure
B
lube oil pump failure
C
lube oil cooler failure
D
lube oil pump overflow

正确答案： A
解析：暂无解析
第22题：

单选题
In a general oil cooler circulated by sea water, the oil is at a higher pressure, the result being that any leak in the cooler will mean a loss of （）.
A
oil
B
sea water
C
air
D
fresh water

正确答案： A
解析：暂无解析
第23题：

单选题
Before the sludge in a purifier is ejected,（）
A
the oil feeding is stopped and replaced by admitting flushing water
B
the flushing water feeding is stopped and replaced by admitting oil
C
the feeding of dirty oil and flushing water is stopped
D
the feeding of dirty oil and flushing water is admitted

正确答案： A
解析：暂无解析

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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

题目

相似考题

更多“Coalescence(聚合) is the breakdown of surface tension between oil droplets in an oil／water ”相关问题

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