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名词解释题
水环境容量（Capacity of Water Environment）
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Deadweight is ________ ．A.the tonnes of the displacement of a vessel in water of a specific gravity of 1．025 at summer load water lineB.the difference in tonnes between the displacement in salt water at summer load waterline and the light weight of the vesselC.the cargoes in tonnes that can be loaded in a vessel at summer load water lineD.the bale capacity in cubic meters of a vessel
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Displacement refers to the ______.A.cubic capacity of a vesselB.deadweight carrying capacity of a vesselC.gross tonnage of a vesselD.number of tons of water displaced by a vessel afloat
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单选题According to the Code of Federal Regulations，on vessels other than river ferryboats and river vessels，how are periodic lifeboat weight tests required to be conducted?（）A
The lifeboat is lowered to near the water，loaded with the allowed capacity，lowered into the water until afloat，then released from the fallsB
The lifeboat is loaded with the allowed capacity，lowered into the water until afloat，then released from the fallsC
The lifeboat is lowered into the water until afloat，loaded with the allowed capacity，then released from the fallsD
The lifeboat is lowered to near the water，loaded with the allowed capacity，then released from the falls
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单选题What does the bottled water industry use in its own defense?A
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单选题The purpose of treating the cooling water of the diesel engine is to（） Ⅰ. resist the scale formation in the cooling chamber Ⅱ.lubricate the engine part Ⅲ.increase thermal capacity Ⅳ.resist corrosionA
Ⅰ+ⅡB
Ⅱ+ⅢC
Ⅲ+ⅣD
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单选题Condensate must be drained from the intercooler and after-coolers of an air compressor because （）.A
the cooling effect of the condensate reduces the compressors efficiencyB
a danger of explosion exists whenever water is present in a compressorC
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the volumetric capacity of the first stage is reduced if water remains
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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
The quantity of oil residues generatedB
The capacity of sludge and bilge water holding tankC
The capacity of the oily water separatorD
All of the above
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单选题When oily water separator is operating, which measure （） is wrong.A
pay attention to operating parametersB
renew and clean separating units in timeC
check oil level in separator to prevent overloadD
check separating effect, if it is bad, flush with large capacity water pump
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问答题Research published in May 1998 by the Department of the Environment, Transport and the Regions (DETR) showed that reducing coastal and river pollution and ensuring a reliable water supply were among the top environmental priorities for the public. All discharges to water in the UK require the consent of the appropriate regulatory authority. In England and Wales the Environment Agency’s principal method of controlling water pollution is through the regulation of all effluent discharges, including sewage, into groundwater, and inland and coastal waters. The Agency maintains public registers containing information about water quality, discharge consents, authorizations and monitoring. Applicants for consents to discharge have the right of appeal if they are dissatisfied with the Agency’s decision; most of these appeals are dealt with by the Planning Inspectorate, an executive agency of the DETR. In Scotland control is the responsibility of the Scottish Environment Protection Agency (SEPA), and most appeals are dealt with by the Scottish Office. In Northern Ireland the Environment and Heritage Service is responsible for controlling water pollution. In 1997, there were 4,717 cases in England and Wales of discharges exceeding their consented limits, including a number of offences by water companies discharging insufficiently treated sewage. The majority of these breaches did not cause any significant environmental damage. However, the Environment Agency did bring 65 cases to court, of which 61 were successful, resulting in fines ranging from ￡ 440 to ￡ 12,000 and one prison sentence of two months. In Scotland, there were 2,734 pollution incidents in 1997; SEPA seeks prosecution in all significant cases. In 1997 and 1998, the Government introduced statutory Environmental Quality Standards (EQSs) for 33 substances in water. The new regulations give legal force for the first time to standards for some of the most dangerous pollutants found in the aquatic environment. In the UK, 96 percent of the population live in properties connected to a sewer, and sewage treatment works serve over 80 percent of the population. In England and Wales, the water industry is committed to an investment programme of some ￡ 11,000 million over ten years for improvements to water quality. Progressively higher treatment standards for industrial waste effluents and new measures to combat pollution from agriculture are expected to bring further improvements in water quality. In Scotland, responsibility for the provision of all water and sewerage services lies with three Water and Sewerage Authorities, covering the north, east and west of the country.
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单选题The designed capacity is 25 tons a day, but the fresh water generator can only （） 22 tons at present.A
consumeB
distillC
runD
operate
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单选题Displacement refers to the（）.A
cubic capacity of a vesselB
deadweight carring capacity of a vesselC
gross tonnage of vesselD
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单选题0f all the extinguishing agents listed below, which one has the greatest capacity for heat adsorption?（）.A
Water fogB
Carbon dioxideC
Dry chemicalD
Solid stream of water
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单选题A
To protect environment.B
To cool buildings.C
To change the climates.D
To provide drinking water.
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单选题If the feed pump for an auxiliary boiler fails to deliver the feed water to the boiler, the cause maybe （）.A
high steam pressure in the boilerB
abnormally high feed water temperatureC
abnormally high boiler water temperatureD
steam demand exceeding feed pump capacity
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多选题按降解机制，水环境容量可以分为（）。A稀释容量B自然水环境容量C管理水环境容量D自净容量
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