网友您好， 请在下方输入框内输入要搜索的题目：
题目内容
（请给出正确答案）
单选题
Emulsification of oil will occur when mixed with （）.
A
air
B
black oil
C
water
D
ice cream
参考答案
参考解析
解析：
暂无解析
更多 “单选题Emulsification of oil will occur when mixed with （）.A airB black oilC waterD ice cream” 相关考题
考题
He () oil and water, but they ().
A、mixed, don’t mixB、mixxed, were not mixxedC、mixed, were not mixingD、mixxed, don’t mix
考题
Spring tides occur______．A.when the moon is new or fullB.when the moon and sun have declination of the same nameC.only when the moon and sun are on the same sides of the earthD.at the beginning of spring when the sun is over the equator
考题
Have you ever served the auxiliary engine to combustion heavy oil? What should be borne in mind when transferring oil; from heavy oil to light oil?
考题
Excessive oil foaming in the crankcase of a refrigeration compressor is most likely to occur when the compressorA.has run continuously for a long periodB.suction pressure is below normalC.oil level is below normalD.starts after a long idle period
考题
This near-tripling of oil prices calls up scary memories of the 1973 oil shock, when prices quadrupled, and 1979-1980, when they also almost tripled.
考题
Dirty oil must be ______before being used again .A.mixed with clean oilB.purifiedC.heatedD.strained
考题
Which substance is NOT considered to be Oil under the pollution prevention regulations?A.Petroleum and fuel oilB.SludgeC.Oil mixed with dredge spoilD.Oil refuse and oil mixed with wastes
考题
Which statement is TRUE concerning equatorial tides ________．A.They occur when the Sun is at minimum declination north or southB.They occur when the Moon is at maximum declination north or southC.The difference in height between consecutive high or low tides is at a minimumD.They are used as the basis for the vulgar establishment of the port
考题
单选题If the piston groove drain holes for the oil control rings become clogged, which of the following is likely to occur?（）A
The oil control rings will seal improperly and wear rapidlyB
The piston will overheat due to insufficient lubricationC
Excessive oil will remain on the cylinder wallD
Light brown smoke will emanate from the engine exhaust
考题
单选题Which will most likely occur when entering shallow water? （）A
Rudder action will become more effectiveB
The vessel's list will changeC
The vessel's trim will changeD
An increase in speed will occur
考题
单选题The ports are drilled in the liners at an angle of approx 20℃ the result being that （） is given a rotary movement.A
the scavenging airB
the exhaust gasesC
the mixed airD
the spray oil
考题
单选题Which substance is NOT considered to be Oil under the pollution prevention regulations? （）A
Petroleum and fuel oilB
SludgeC
Oil mixed with dredge spoilD
Oil refuse and oil mixed with wastes
考题
单选题When riveted joints occur at the ends of plating they are called（）.A
trailersB
terminalsC
seamsD
butts
考题
单选题When an auxiliary boiler is panting and emitting black smoke, you should （）.A
increase the fuel oil temperatureB
decrease the fuel oil temperatureC
decrease the fuel oil supply pressureD
increase the air supply
考题
单选题Which of the following conditions is most likely to occur when unburned fuel contaminates the crankcase of a diesel engine?（）A
Lube oil is diluted and its viscosity is reducedB
Sulfuric acid is formedC
Bearings become pitted ad immediately failD
Valve stems develop sludge deposits
考题
单选题When fuel oil has seriously contaminated a diesel engine lubricating oil, you should （）.A
filter to remove the fuel oilB
use the settler to remove the fuel oilC
remove the fuel oil by centrifugingD
drain and then renew the lube oil supply
考题
单选题When finish work on the oil separator, you should（）firstly.A
cut off the powerB
cut off the oil inletC
open guide water valveD
close oil outlet value
考题
单选题Oil water separators are used to ensure that ships dont discharge oil when pumping out （）.A
ballast waterB
boiler waterC
bilge waterD
sewage water
考题
单选题What is the harmful effect of sulfur in a fuel?（）A
It causes excessive smoking and soot at low firing ratesB
It doesn’t readily burn when combined with oxygenC
It clogs fuel oil strainers more oftenD
It forms a corrosive acid when mixed with water or water vapor
考题
单选题Dirt should not be allowed to contaminate a grease lubricant because the （）.A
dirt will cause corrosion of bearingB
bearings will leak oil excessivelyC
dirt is very abrasive when mixed with greaseD
grease will become inflammable
考题
单选题Which of the following problems will occur if a disk-type centrifugal lube oil purifier is not properly primed prior to admitting oil flow to the bowl?（）A
Contamination of the lube oil by emulsification will resultB
The lube oil will not be subjected to the proper centrifugal forceC
The lube oil will overheat and flashD
Oil will discharge from the heavy phase discharge port and be wasted
考题
单选题Which statement is TRUE concerning apogean tides（）．A
They occur only at quadratureB
They occur when the Moon is nearest the EarthC
They cause diurnal tides to become mixedD
They have a decreased range from normal
考题
单选题Which of the following operational conditions will occur to the diesel engine lube oil at extremely high temperature?（）A
The oil oxidizes and forms carbon depositsB
The viscosity increasesC
Engine oil consumption decreasesD
Lubricating qualities of the oil are enhanced
考题
单选题Which of the following problems may occur when using fuel oil with a high sulphur content?（）A
Injection lagB
Lube oil dilutionC
Pre-ignitionD
Corrosion
考题
单选题In which of the areas listed is a fire resulting from spontaneous combustion most likely to occur?（）A
Engine room bilgesB
Paint lockerC
Battery storage lockerD
Fuel oil tank
考题
单选题Excessive oil foaming in the crankcase of a refrigeration compressor is most likely to occur（） when the compressor.A
has continuously for a long periodB
suction pressure is below normalC
oil level is below normalD
starts after a long idle period
热门标签
最新试卷
