轮机英语【轮机长】

考试试题

[单选题]The class of fire on which a blanketing effect is essential to extinguish the fire is ____.
[单选题]Exhaust gas pyrometers are useful for ______.
[单选题]Which of the following is not the characteristic of the radial piston pumps?
[单选题]____ is not installed on the emergency switchboard.
[单选题]You are reconnecting a three-phase induction motor to the supply line. To prevent possible damage to the load, due to the wrong direction of rotation, you should ______.
[单选题]Thermal energy in transition is also referred to as ______.
[单选题]The rising velocity of the globules carries them upwards where they become trapped by the under surfaces of plates and _____ until the enlarged globules have sufficient rising velocity to travel along the plate surface and break away at the periphery.
[单选题]The lengthening of a crack formed in the shell plating of a ship may be prevented by ____.
[问答题]Product description NALFLEET "SEA SHIELD" DISC/FILTER CLEAN is a mixture of solvents, proprietary surfactants and an organic acid. It is designed specifically for the removal of oily residues and lacquers found in fuel oil and lube oil purifiers and filters. NALFLEET "SEA SHIELD" DISC/FILTER CLEAN does not contain any phenols, cresylic acid, chlorinated hydrocarbons and less than 10% aromatics. The formulation meets the latest regulations from MARPOL 73/78 as recommended by the Bulk Liquids and Gases (BLG) working group of the Marine Environmental Protection Committee (MEPC) of the International Marine Organization (IMO), and is approved by that committee on behalf of IMO. These regulations, effective 1st July 1996, state that additives used for cleaning ship's tanks must contain less than 10% of a Pollution Category A product. (Annex II of MARPOL 73/78 now states that petrochemical complex mixtures of hydrocarbons containing more than 10 wt % of C3-C8 alkylbenzenes (i.e. C9-C14 aromatics) and/or poly (C2 and above) cyclic aromatics, are assigned to Pollution Category A.) The formulation also meets the latest OSPARCOM regulations which ban the use of surfactants based on Alkyl Phenol Ethoxylates in cleaning products. (The reason for this ban is that Alkyl Phenol Ethoxylates degrade in the environment to Alkyl Phenol which is persistent and slightly oestrogenic-affects the reproduction cycle of organisms)
[单选题]In which case is the oil discharge permitted?
[单选题]The _______ in the steering gear system provides the force.
[单选题]A ground can be defined as an electrical connection between the wiring of a motor and its ____.
[单选题]An A.C. switchboard is usually _____the corresponding D.C. board because of the higher voltage and lower currents and smaller bus-bars.
[单选题]In what sense is MARPOL regarded as the most ambitious international treaty? ________.
[单选题]Hitachi B&W, 2-stroke cycle, single acting direct reversible, cross-head, welding design type diesel engine with turbo-charge, these information refers to _________.
[单选题]The transmission system transmitting power from the engine to the propeller is composed of shafts, bearings, and______.
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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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