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
Oil may NOT be transferred unless（）.
A
there are two certificated tankermen on each vessel
B
the vessel is equipped with constant-tension winches
C
discharge containment equipment (i.e. drip pans) are in place
D
All of the above
参考答案
参考解析
解析：
暂无解析
更多 “单选题Oil may NOT be transferred unless（）.A there are two certificated tankermen on each vesselB the vessel is equipped with constant-tension winchesC discharge containment equipment (i.e. drip pans) are in placeD All of the above” 相关考题
考题
In a matrix organizational form, MBO may be difficult to implement:A . If the functional employees are supervised closely by the line manager rather than the project managerB . Unless the project manager has an input into the employee's performance reviewC . Unless the project and line managers agree on the ultimate objectiveD . Unless the project and line managers agree to the duration of the taskE . None of the above are correct answers
考题
174 In a matrix organizational form, MBO may be difficult to implement:A. If the functional employees are supervised closely by the line manager rather than the project managerB. Unless the project manager has an input into the employee's performance review C. Unless the project and line managers agree on the ultimate objectiveD. Unless the project and line managers agree to the duration of the taskE. None of the above are correct answers
考题
第二组Under normal operation, some lubrication oil mist may be discharged from the air compressor to the air start system. This oil may be from excess compressor cylinder lubrication, from faulty oil scraper rings, or may even be suspended oil vapor contaminating the engine room atmosphere and drawn in at the compressor suction. Oil discharge is kept to a minimum by draining the after cooler, air receiver and starting system. If small quantities of lubrication oil do get passed into the starting air system, they will deposit as thin moist film over internal pipe surfaces but are not readily combustible. If a cylinder non-return valve leak while the engine is in operation, some hot gas, possibly with unburned fuel and cylinder lubrication oil, may be blown through the valve to the adjacent air manifold. With further heating from the leaky valve, this, together with the already deposited oil film, will carbonize and form. incandescent carbon. If starting air is applied to the system while still hot, the high pressure air coming into contact with the burning carbon may cause an explosion. Such an explosion will cause a flame to pass back through the air start pipe system, evaporating the deposited oil film and igniting it in the presence of air. Very high velocities and shockwaves are generated which may rupture pipes and fittings.Alternatively, if excessive oil has entered the air start system, a mixture of air and oil droplets may be discharged through the open cylinder non-return valve during starting. This spray may ignite due to high temperatures in the cylinder, causing a flame through the still open valve to the air manifold.To prevent an explosion, air start valves must be correctly maintained and lubricated to ensure correct timing and free movement with positive closing. Oil in the system must be kept to a minimum, pipe lines must be drained and cleaned internally when necessary and oil discharge from air compressors must be kept to a minimum by good maintenance.The passage is mainly aboutA.crankcase explosionB.scavenge box fireC.starting air pipeD.the danger of explosion in the starting air system
考题
Sludge may be formed in the oil in the crankcase of a reciprocating air conditioning compressor as a result of ______.A.refrigerant bubbles in the lube oilB.refrigerant reducing the lube oil viscosityC.oxidation(氧化) of the lube oil from overheatingD.reducing the floc or cloud point of the oil
考题
A hydraulic motor may be driven by______.A.an electric motorB.a diesel engineC.a compressorD.oil
考题
A notice of readiness is not valid unless it indicates that the vessel is ready to load or discharge as the case may be，at the time ______ it is given．A.whenB.whichC.thatD.then
考题
Oil may NOT be transferred unless ______.A.there are two certificated tankermen on each vesselB.the vessel is equipped with constant-tension winchesC.discharge containment equipment (i.e. drip pans) are in placeD.All of the above
考题
No person may serve as the person in charge of both the vessel and the facility during oil transfer operations unless ______.A.there is ready access between the twoB.the vessel and facility are immediately adjacentC.the person in charge has a rapid means of transportation between the twoD.the Captain of the Port authorizes such procedure
考题
Unless such oil tanker carries crude oil which is not suitable for crude oil washing，the oil tanker shall ______ the system in accordance with the requirements of that Regulation．A.operateB.checkC.installD.overhaul
考题
材料：Every new crude oil tanker of 20000 tons deadweight and above shall be fitted with a cargo tank cleaning system using crude oil washing．The Administration shall undertake to ensure that the system fully complies with the requirements of MARPOL within one year after the tanker was first engaged in the trade of carrying crude oil or by the end of the third voyage carrying crude oil suitable for crude oil washing，whichever occurs later．Unless such oil tanker carries crude oil which is not suitable for crude oil washing，the oil tanker shall operate the system in accordance with the requirements of that Regulation．Every existing crude oil tanker of 40000 tons deadweight and above shall be provided with segregated ballast tanks．Existing crude oil tankers may，in lieu of being provided with segregated ballast tanks，operate with a cargo tank cleaning procedure using crude oil washing unless the crude oil tanker is intended to carry crude oil which is not suitable for crude oil washing．Existing crude oil tankers may，in lieu of being provided with segregated ballast tanks or operating with a cargo tank cleaning procedure using crude oil washing，operate with dedicated clean ballast tanks in accordance with the provision of Regulation 13A of this Annex for the following period：for crude oil tankers of 70 000 tons deadweight and above，until two years after the date of entry into force of the present Convention；and for crude oil tankers of 40000 tons deadweight and above but below 70 000 tons deadweight，until four years after the date of entry into force of the present Convention．问题：A new crude oil tanker of 30000 tons deadweight shall ________．A.be fitted with crude oil washing systemB.operate dedicated clean ballast tanksC.be fitted with segregated ballast tanksD.be fitted with washing system other than crude oil washing systemExcept________，the existing crude oil tankers may operate with any of the following installations．A.segregated ballast tanksB.cargo tank cleaning procedure using crude oil washingC.operate with dedicated clean ballast tanksD.protection positionThe latest date for an existing crude oil tanker of 60000 tons deadweight to install dedicated clean ballast tanks is ________．A.until two years after the date of entry into force of the present ConventionB.until four years after the date of entry into force of the present ConventionC.within one year after the tanker was first engaged in the trade of carrying crude oilD.by the end of the third voyage carrying crude oilIt is inferred that ________．A.all oil tankers，both the newly built and existing ones，shall be fitted with a cargo tank cleaning system using crude oil washingB.a new crude oil tanker of 20 000 tons deadweight and above may，in lieu of being provided with crude oil washing system，operate with segregated ballast tanksC.a new crude oil tanker of 20 000 tons deadweight and above may，in lieu of being provided with crude oil washing system，operate with dedicated clean ballast tanksD.a new crude oil tanker of 20 000 tons deadweight and above shall not be fitted with a cargo tank cleaning system using crude oil washing immediately after her entry in the trade of carrying crude oil请帮忙给出每个问题的正确答案和分析，谢谢！
考题
A System p customer is planning to implement virtualization and is concerned about how to respond to an increased workload and what limitations there are for very small workloads. Which of the following describes the minimum size for an LPAR and the minimum amount that can be transferred from on LPAR to another（）A、Smallest partition 10% of all available processors， as small as 1% of all available processors may be transferred.B、Smallest partition 10% of a processor， as small 1% of a processor may be transferred.C、Smallest partition one processor， as small 1% of a processor may be transferred.D、Smallest partition one core， as small 10% of a processor may be transferred.
考题
单选题A notice of readiness is not valid unless it indicates that the vessel is ready to load or discharge as the case may be，at the time（）it is given.A
whenB
whichC
thatD
then
考题
单选题Fuel oil is regularly transferred to the day tank in order to （）A
allow impurities to settle out of the fuelB
allow air to escape from the fuelC
make fuel available for immediate useD
all of the above
考题
单选题What type of oil is not covered in the oil pollution law?（）A
mineral oilB
machinery oil being transferred for shipboard useC
crude oil unrefinedD
normal bilge oil and water
考题
单选题Moisture in the refrigerant may （）.A
freeze on the expansion valve seat and reduce the flow of liquid refrigerantB
emulsify the oil in the condenserC
freeze in the king valveD
clog the oil trap
考题
单选题If fuel injection to a four-stroke/cycle diesel engine begins earlier than designed, ignition may be delayed because the （）.A
cylinder compression pressure may not be high enoughB
cylinder compression temperature may be too highC
fuel oil injection pressure may not be high enoughD
scavenge and purge process is incomplete
考题
单选题Sludge may form in the lubricating oil crankcase of a reciprocating air conditioning compressor as a result of （）.A
wax precipitation in the lube oilB
contamination by dust, scale, or moistureC
refrigerant bubbles in the lube oilD
refrigerant reducing the lube oil viscosity
考题
单选题Lube oil in the fresh water cooling system of a diesel engine may result from a （）A
camshaft seizureB
lube oil pump failureC
lube oil cooler failureD
lube oil pump overflow
考题
单选题The flash point of a residual fuel oil should be used to determine the highest temperature to which oil may be heated （）A
for atomizingB
for centrifugingC
in a storage tankD
in the re-circulating line
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The requirements of the ISM Code may be applied to （）.A
only oil tankersB
only passenger shipsC
only containersD
all ships
考题
单选题Sludge may be formed in the oil in the crankcase of a reciprocating air conditioning compressor as a result of （）A
refrigerant bubbles in the lube oilB
refrigerant reducing the lube oil viscosityC
oxidation of the lube oil from overheatingD
reducing the floc or cloud point of the oil
考题
单选题Waste oil from the lube oil sumps of machinery may NOT be （）.A
drained into the vessels bilgesB
reclaimed for other usesC
held in a slop tankD
purified and then reused
考题
单选题Which harmful consequence may be the result of lube oil sludge accumulation? （）A
Clogged oil pump suction screensB
Increased oil operating temperaturesC
Sticking piston ringsD
All of the above
热门标签
最新试卷
