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海船船员
轮机长
轮机英语【甲类】
轮机英语【轮机长】
轮机英语【轮机长】
考试试题
[问答题]The power supply to the incinerator must be turned on immediate after black out. The cooling program of the incinerator will then automatically be activated. In case of a black out of more than 5 to 7 minutes the possibility of damaging the incinerator is very high. In case the emergency switch board is hooked up to the main supply of the Incinerator, the plant will start at cooling program until it the temperature reach 100°C and/or until manual reset at the electric panel. Factory settings: The nozzles are adjusted to max sludge burning capacity, without burning solid waste. This setting can be found by closing the nozzles and turn them counter clockwise 1/4 round. Adjustment on board: Depending on the layout of the funnel and depending on the amount and type of solid waste burned, the nozzles might require readjustment. If no measuring tools are available, please observe if there is coming dark smoke out of the stack. If so, then open the air nozzles in the primary combustion chamber until it stops. If the exhaust gas temperature is too high, or if sparks are developed, this can be overcame by opening the air nozzles in the secondary chamber (left turn more air, right turn less air).
[单选题]The load sharing characteristics of two diesel generators operating in parallel are mostly dependent on their governor _____.
[单选题]If the gas pressure behind the ring is built up too slowly, and thereby exerts an inadequate outward pressure. In such a case, the combustion gas can penetrate between the liner and ring, and violently force the ring inwards, in the groove. What result will this type of sudden “shock” loading eventually lead to?
[单选题]Compared with electronic system, what merit does the pneumatic system have?
[单选题]When a hydraulic vane pump is working, which of the following is in contact with the vanes? I. the rotor; II. the internal surface of the housing; III. the external surface of the housing.
[单选题]The process of adding moisture to air to increase the relative humidity is known as__________.
[问答题]The most common diesel engine throughout the world is the high-speed engine. The majority of these engines operate on the four-stroke cycle but a significant proportion utilize the two-stroke cycle. These engines have running speeds over 1000rpm and are ideally suited to driving land-based vehicles such as busses and trucks, the application of high-speed diesel engines as propulsion engines at sea id limited to smaller vessels such as tugs, ferries and barges etc. they are regularly used for electrical power generation in support of a medium-speed propulsion engine, on larger ships their use is limited to emergency power generation to small applications such as diesel driven emergency pumps and compressors. The acceptance of high-speed engines in ships has grown in recent years with the development of larger horsepower engines, this has been assisted by co-operation between traditional medium-and slow-speed engine manufacturers with high-speed engine manufacturers, these manufacturers have begun to produce engines capable of supplying power in ranges that formerly fell between those of medium-and high-speed engines. The propulsion layouts used with high-speed engines parallel those mentioned above for medium-speed engines.
[单选题]Special thrust devices are provided on ships to improve their ________at zero ship speed when the rudder is relatively ineffective.
[单选题]What’s the relationship among measured value, desired value, set value, deviation, offset?
[单选题]The power factor is a measure of the phase difference between voltage and current and is expressed as the ____of the phase angle
[单选题]A DC generator is used to supply direct current in order to maintain an AC generator field and is known as a/an _______.
[单选题]69. Oil Record Book Part Ⅰ shall be provided to every oil tanker of 150 tons gross tonnage and above and every ship of 400 tons gross tonnage and above, ____ oil tankers, to record relevant machinery space operations.
[单选题]On routine daily inspection you notice that there is a light arching between an alternator’s carbon brushes and rotor sliprings, with alternator operating at 70% load. Should you_______.
[单选题]The load limitation of governor should be reduced when ship navigating at sea, the main reason is to____..
[单选题]Fuel oil discharged to the diesel engine cylinder is atomized at the ______.
[单选题]Sensitivity for a diesel engine governor is described as the ______.
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第一章 船舶主推进装置
第二章 船舶辅助机械
第三章 船舶电气和自动化
第四章 船舶轮机管理业务
第五章 国际公约、规则
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第一章 船舶主推进装置
第二章 船舶辅助机械
第三章 船舶电气和自动化
第四章 船舶轮机管理业务
第五章 国际公约、规则
专项训练一
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