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
The separation of impurities and water from （） is essential for good combustion of diesel engines.
A
lube oil
B
fuel oil
C
turbine oil
D
grease
参考答案
参考解析
解析：
暂无解析
更多 “单选题The separation of impurities and water from （） is essential for good combustion of diesel engines.A lube oilB fuel oilC turbine oilD grease” 相关考题
考题
29． The writer thinks that people in large cities should __________ ．A． stop the used water from getting into undergroundB． only use the water from the riversC． make their used water clean againD． use as much sea water as possible
考题
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
考题
The separation of impurities and water from ______is essential for good combustion of diesel engines.A.lube oilB.fuel oilC.turbine oilD.grease
考题
When a clarifier is running the impurities and water collect at the bowl _____.A.centerB.peripheryC.inletD.upper parts
考题
______ is not likely to be a methods of Traffic Separation．A.Separation of opposing streams of traffic by separation zones or linesB.The separation of through traffic from local traffic by provision of inshore traffic zonesC.Division of traffic from several different direction into sectorsD.Control of routing traffic through shipping routes
考题
The drinking water is contaminated with impurities.A:blackened
B:polluted
C:darkened
D:mixed
考题
单选题A shallow dish positioned at the normal water level is connected to the（）This enables the blowing down or removal of scum and impurities from the water surface.A
main stern stop valveB
auxiliary steam stop valveC
scum valveD
blow down valve
考题
单选题A high rate of separation between oil and water is favored by （）.A
large size of oil globuleB
low temperatureC
high viscosityD
high flow rate
考题
单选题What is NOT a function of the steam drum of a marine water-tube boiler（）.A
Receives saturated steam from the generating tubesB
Serves as a reservoir of boiler feed waterC
Holds internal fittings for separation of moisture from steamD
Collects steam exhausted from the turbines
考题
单选题We use （） to distill fresh water from sea water.A
engineB
sea water pumpC
cylinder coolerD
fresh water generator
考题
单选题Which statement concerning the collection of fresh water is FALSE?（）A
Fresh water may be obtained from fishB
lifeboat covers or canopies should be washed with rain before drinking water is collectedC
Fresh water may be collected from condensation inside the life-raftD
Freshwater cannot be produced from standing seawater
考题
单选题To assist separation of low viscosity oils steam coils or electric heaters are fitted （） of the oily water separator.A
in entranceB
in exitC
in the upper partD
on the outside
考题
单选题Bottom blow valves are installed on auxiliary water-tube boilers to （）A
remove suspended and precipitated solids from the boiler waterB
completely drain the boiler in an emergency situationC
prevent hardened scale deposits in the water drumD
remove floating impurities from the oily water surface
考题
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
考题
单选题The emulsion of the oil is mainly caused by （）.A
the solid impurities of large particleB
the solid impurities of fine particleC
the water contentD
both water and solid impurities
考题
单选题When distilling salt water the cooling water discharging from the distiller is fed back to evaporator as feed water （）.A
to cut down the amount of cooling water neededB
to prevent an excess amount of cooling water from being discharged to the bilgesC
to supply hot water to the evaporator for more economical operationD
None of the above is tree
考题
单选题A definite advantage of using water as a fire extinguishing agent is its characteristic of（）.A
alternate expansion and contraction as water in a liquid state becomes a vaporB
absorption of smoke and gases as water is converted from a liquid to a vaporC
rapid contraction as water is converted from a liquid to a vaporD
rapid expansion as water absorbs heat and changes to steam
考题
单选题Clean oil is achieved in a clarifier bowl where the impurities and water collect at the bowl （）.A
bottomB
topC
centerD
periphery
考题
单选题A centrifuge arranged to separate impurities and small amounts of water from oil is known as （）.A
an oily water separatorB
a purifierC
a centrifugal compressorD
a clarifier
考题
单选题The principle of separation by which all commercially available oily water separators function is （） differential between oil and water.A
the temperatureB
the viscosityC
the gravityD
the size
考题
单选题Separation cloths may be used to（）.A
absorb moisture from hygroscopic cargoesB
fill gaps between layers of cargoC
wrap cargo that leaks from packagingD
keep bagged cargo leakage from contacting the deck
考题
单选题（） is not likely to be a methods of Traffic Separation.A
Separation of opposing streams of traffic by separation zones or linesB
The separation of through traffic from local traffic by provision of inshore traffic zonesC
Division of traffic from several different direction into sectorsD
Control of routing traffic through shipping routes
考题
单选题When a clarifier is running the impurities and water collect at the bowl （）.A
centerB
peripheryC
inletD
upper parts
考题
单选题Impurities from the boiler water surface can be removed through the （）.A
safety valveB
blow down valveC
scum valveD
feed check valve
考题
单选题As for turbine oil, contact with water in the form of steam will be inevitable so good （） properties will be essential.A
defrostingB
de-oilingC
demulsifyingD
dehumidifying
考题
单选题Bottom blow valves are installed on auxiliary water-tube boilers to （）A
completely drain the boiler in an emergencyB
prevent sludge from forming in the drumC
remove floating impurities from the boiler water surfaceD
remove settled solids from the water drum
考题
单选题A vessel using a traffic separation scheme shall so far as practicable（）a traffic separation line or separation zone.A
keep well clearB
keep very farC
keep clear ofD
keep clear from
热门标签
最新试卷
